Types of Angle Grinders: Uses, Discs, Sizes and Wheel Types

[gp-social]

Most people associate angle grinders with flying sparks seen in metal workshops or in large construction sites. I assure you there’s more to angle grinders than that.

When it comes to versatility, angle grinders can really do a lot.  They are handheld power tools that can perform different tasks ranging from metal cleaning, polishing, and sharpening cutting edges, to cutting objects such as bars and rods, pavers, stone, concrete or even removing old mortar.

The abrasive disc on the angle grinders is responsible for cutting through the various substance. Although the discs look similar, they’re designed for different cutting tasks.

Angle grinders got their name from the task that they are mostly used for. When you turn the angle grinder, you can use the edge to make really deep cuts on different substances. However, the flat end of the disc can also be used for polishing and wearing out different materials.

Although the abrasive disc can cut through any material, they are best used on hard materials such as metals and stones. Using them on soft materials such as wood will cause the material to melt or catch fire because they won’t be able to withstand heat buildup during cutting. For cutting wood we recommend using a miter or a circular saw

Angle Grinder Uses

While the angle grinder is widely used in metal workshops together with drill presses for drilling through metal and construction sites, it also finds a lot of uses in the home, a service garage, or an auto repair shop. There are many things to do with an angle grinder.

angle grinder metal work

There will always be the need for you to cut to through a hard material either to perform emergency rescues, to manufacture another object, to make things fit into trash bins more conveniently or to sharpen and polish your garden tools.

What is an angle grinder used for

  • Cutting steel bars or rods, metal sheets, bolts, and screws.
  • Sharpening cutting edges of garden tools such as axes, shears, shovels, and other chopping tools. This same job also can be done with a bench grinder.
  • Cutting pavers, bricks, slab blocks, tiles, and also rooting out old mortar.
  • Cleaning rust, paint and caked-up cement from metal surfaces. For example, cement mixers, gates, and fences, trowels and spades etc.
  • Shaping objects and materials. You need some level of expertise to achieve this.

Types of Angle Grinders

There are four major types of angle grinders, each having their own peculiarities, pros and cons. Selecting the correct angular grinder for a job will make you carry out the job more efficiently. polishing.

Electric Angle Grinders

OUR PICKS

Metabo WP9-115 Quick 8.5 Amp 10,500 rpm...
148 Reviews
Metabo WP9-115 Quick 8.5 Amp 10,500 rpm...
  • Metabo LongLife motor with up to 50% more torque for quicker material removal, up to 20% higher overload capacity
  • Suitable for AC/DC operation
  • Dead-man paddle switch function provides immediate shutdown of the motor when the paddle switch is released
  • Metabo S-Automatic safety slip clutch helps the user to maintain control if the accessory jams reducing the likelihood of kickback
  • Metabo Quick System: the fastest tool-free disc change system at the touch of a button
Makita 9557PBX1 4-1/2" Paddle Switch...
  • Powerful 7.5 AMP motor for high output power in a more compact tool (only 4.5 pounds)
  • Small diameter barrel grip (only 2 to 1/2 inches) for added comfort
  • Labyrinth construction seals and protects the motor and bearings from dust and debris for longer tool life
  • Lock on/off feature for continuous operation
  • AC/DC switch for use with alternative power source
Sale
SKIL 8 Amp Corded Angle Grinder-...
  • Powerful– with an 8 amp motor, This grinder is able to handle big and small household tasks.
  • More Control– the 3-position side handle allows greater control in multiple positions.
  • Easy guard adjustments– No tools are needed to adjust the safety guard position.
  • Safety lock– This grinder is equipped with paddle switch safety lock which prevents accidental start-up.
  • Convenient storage–wrench storage is conveniently located in the side handle. Never search for the wrench again.
Makita GA4030K 4" Angle Grinder, with...
  • Powerful 6.0 AMP motor delivers 11,000 RPM for the most demanding applications
  • Compact design at only 3.7 lbs. for reduced operator fatigue
  • Slide switch with lock-on for continuous operation
  • Small 2-1/4" diameter barrel grip for maximum comfort
BOSCH 1375A Corded 4-1/2-Inch 6 Amp...
  • COMPACT: weighing only 3.75 pounds, the grinder is compact and ideal for metal workers, vehicle fabricators, plumbers and other professionals who use grinders on a daily basis
  • POWER: features a powerful 6.0 AMP motor to produce 11,000 no load rpm for professional cutting and grinding applications; the efficient motor was designed with an extremely small field diameter, letting the user grind or cut with ease
  • COMFORT: offers a 2-position side auxiliary handle specifically designed to angle to a natural position for maximum operator comfort; the top handle of the angle grinder is also ergonomically designed
  • CONVENIENT: features Bosch’s Service Minder Brush System to eliminate guesswork and stops the tool when preventative maintenance is required; A 5/8 inches to 11 inch spindle works with a wide array of sizes, mounting the most popular accessories
  • DURABLE: features an epoxy coated design to protect the tool from abrasive debris; also designed with a sealed switch to keep dust and debris from entering the switch mechanism

This is the most common type of electric angle grinder, it makes use of electric power to operate the motor. Due to its popularity, many electric angle grinders from different manufacturers are available in the market.

Since they are powered by electricity, they can only be used where you have a nearby electrical outlet. So, getting an electric angle grinder with enough cord length is essential, however, you can extend the range with an extension cord.

With an electric angle grinder, you can work for many hours without interruptions as long as you’re always connected to electric power. Large angle grinders will most times be electric and more powerful, making them require an additional handle to support the tool during operation.

Pros

  • Unlimited Runtime
  • Powerful
  • Easy to use

Cons

  • Corded

Battery-Powered Cordless Angle Grinders

Battery operated angle grinders run on battery, so they don’t require electric cords. This ability makes it easier to move them about during operation and transportation from one work area to another. You can use them in high locations without having to bother about the proximity of an electrical outlet.

However, these portable angle grinder with cutting disc have limited run time before the batteries need to be replaced or recharged. How long a battery lasts depends on the type of the battery and the voltage capacity. Lithium-ion batteries are more preferred to Ni-cad batteries because they last longer and can be recharged easily.

It’s better to have a backup battery if you’re opting for a battery-powered angle grinder so you can use it while charging the replaced one.

Pros

  • Easy to control and maneuver
  • Unlimited work area range

Cons

  • Less powerful
  • Limited runtime

Pneumatic Angle Grinders

OUR PICKS

Sale
Ingersoll Rand 3445MAX Air Angle...
  • Max Power: The 4-1/2" wheel 3445MAX grinder delivers maximum power, productivity, comfort, and reliability to tackle the toughest material removal jobs in metalworking, construction, and more.
  • Work Faster, Safer: The .88 HP air motor with 12,000 RPM delivers the power you need and the internal governor maximizes speed under the load, increasing the rate of material removal.
  • Built-in lubrication: Its built-in lubricating wick optimizes the life of the angle gear set by improving lubrication to the bevel and pinion gear set.
  • Lightweight Comfort: The enhanced grip design increases operator comfort for extended use, and its lightweight construction, weighing less than 3.5 lbs., delivers the best power-to-weight ratio in its class.
  • Material Compatibility: Cut, grind, or polish a variety of materials, including metal and concrete, with confidence thanks to the superior comfort and power.
NEIKO 30070A 7" Air Angle Sander | 1/4"...
  • [HEAVY DUTY]: Includes an HD ball bearing construction that provides reliable, vibration-free performance when applied to various surfaces such as paint, wood, plastic, metal, etc.
  • [DESIGN]: This air tool is lightweight with a balanced design, which helps to reduce fatigue and has a muffled exhaust that keeps decibel levels low for quiet operation at home or the garage.
  • [SPECIFICATIONS]: The seven-inch angle sander has a free air speed of 4500 RPM and is ideal for roughing body filler, buffing, removing rust or smoothing welds for automotive and home improvement projects.
  • [NPT]: The sander uses a standard 1/4" NPT air outlet connected to an air hose and an air compressor to be used for an assortment of applications.
  • [VERSATILE]: The auxiliary side handle can be removed, switched, and installed for right- and left-hand operation allowing for ambidextrous use to make this tool a universal fit for anyone.
Ingersoll Rand 422G Edge Series 5' Air...
102 Reviews
Ingersoll Rand 422G Edge Series 5" Air...
  • POWERFUL PERFORMANCE: IR Edges Series 422G Air Angle Grinder is the right tool for the job; This all-purpose, powerful tool features a unique motor controller that virtually eliminates over-speeding, a locking lever with tease throttle, and front exhaust
  • 1.0 HP MOTOR: The grinder’s 1.0 HP output helps you remove more material for many tough jobs; With 12,000 RPM, it will power through heavy duty tasks
  • USER COMFORT: Ergonomic grip reduces vibration and increases comfort while operating, keeping you on the job longer and finishing tasks more efficiently
  • APPLICATIONS: The 422G pneumatic grinder is suited for metal dressing, rust removal, weld preparation, and automotive bodywork fabrication
  • DEPENDABLE RELIABILITY: Durable design ensures this tool will work like you expect each time you pull the trigger; Every component, mechanism, and function has undergone rigorous testing to ensure long-lasting performance
Sale
Central Pneumatic 4' Air Angle Grinder
48 Reviews
Central Pneumatic 4" Air Angle Grinder
  • Contoured throttle lever for versatility and control
  • Meets ANSI specifications;
  • Contoured throttle lever gives control for feather edging to full speed grinding
  • Meets ANSI specifications
Freeman FAT5AG Pneumatic 5" Angle...
  • Ideal for removing rust, smoothing welds, polishing, and light cutting jobs
  • Powerful grinding performance with a free speed of 11,000 RPM
  • Hardened steel bevel gears and an aluminum body for increased durability
  • Auxiliary side handle for increased tool control
  • Variable speed trigger locks automatically for increased user safety

This type of angle grinders makes use of air pressure supplied by air compressors to operate. They are usually more powerful than other types of angle grinders, but when you add in the cost of an air compressor, they could be costlier.

If you already have an air compressor in your store, then this type of angle grinder will be perfect for you.

Although this tool is available in a small size, it produces a lot of power, sometimes more than electric ones.

Similar to other types of grinders, it is also possible to attach an additional adjustable handle and a safety guard.

Pros

  • Extended run time
  • More powerful

Cons

  • Costly

Gas Powered angle grinders. Most Powerful Angle Grinder

This is also a type of cordless angle grinder in which gasoline is used to power their motor rather than electricity. They are usually the most powerful angle grinders available, having enough power to perform the most difficult tasks.

However, they are quite heavy and can be very expensive to maintain. You need to constantly refill for them to function ceaselessly.

Pros

  • Very Powerful

Cons

  • Quite heavy
  • Emission of gases that are not environmentally friendly

Different Types of Angle Grinders Discs

Each task carried out with angle grinders either polishing, cutting or grinding, have discs that are purposely assigned for them. Attempting to use say a cutting disc to grind or vice versa will only damage the disc.

types discs angle grinders

Stone cutting discs can actually be used to cut metal but it can tear up and damage the disc, it can also cause serious injury to yourself or people around you. That's why there are different types of discs for an angle grinder.

Reading the label on the discs with the materials you can use them on is easier to understand.

Let’s look at the angle grinder wheel types so you can know which one to use for any task you need to perform with an angle grinder.

Abrasive discs angle grinder. Diamond cutting discs

OUR PICKS

DEWALT Grinding Wheel, Double Row,...
1,735 Reviews
DEWALT Grinding Wheel, Double Row,...
  • Extended performance diamond matrix provides 350x's the life of conventional abrasives and aggressive material removal
  • Large Grinding segments with heat treated steel bodies which provides increases durability and wheel life
Sale
KSEIBI 644030 Diamond Concrete Grinding...
  • Double Row Segmented Diamond Cup Wheel are designed for grinding concrete and fieldstone, it's an ideal concrete grinding wheel 4 1/2 for angle grinder.
  • The double row diamond cup grinding wheel is suitable for grinding machines and angle grinders to remove thinset and excess materials on your surface quickly.
  • The double segment of this diamond grinder cup configuration allows faster material removal ideal for all types of stone like concrete, ceramic, tile, marble, granite, rock, cement, etc.
  • Using the diamond grinding wheel 4 1/2 inch for surface finishing on concrete, screed, and natural stone like granite, can also be used for the removal of glues and epoxies or thinnest
  • Durable high-quality brazed Double row segments diamond grinding cup wheel for fast and smooth grinding with 5mm segment height use on both wet or dry surfaces.
AUTOTOOLHOME 4 1/2-inch Diamond Saw...
  • 4-1/2” Premium Segmented Diamond Blade for FAST & RELIABLE Tile,Concrete, Cinder Block & Brick Cutting, compatible with All 4-1/2” Angle Grinders and marble cutters ,with 7/8” arbor
  • Stronger hot-pressed cutting segments combines aggressive cutting ability with a fine, clean cut and no burning of the segments. Elimination the possibility of single segment detachment.
  • Idea for Wet/Dry conditions Cutting in: Concrete, Masonry, Stone, Asphalt, Retractories and Granite
  • Steel core is made from high alloy, heat-treated steel. ensuring clean cuts as well as a disc operation that is characterized by smoothness and a low level of vibrations.
  • DESIGNED for Hard and Continuous use by professionals in construction, concrete fabrication, general maintenance, brick layers & general industrial applications, Each blade is engineered to work at 13,300 RPM and a maximum cutting depth of 1" to 1-1/4 inch

This grinder discs type can be used to cut through tiles, slates, marble asphalt, granite, and other abrasive materials. Their tips are made of diamond so they are hard enough to cut through the earlier mentioned hard materials.

You need to check if the disc is either dry or wet cut before purchasing a diamond cutting disc. Dry cut discs can be used without water while wet cut discs need to be kept wet when cutting.

Angle grinder discs for metal & stone cutting discs for angle grinder

OUR PICKS

Benchmark Abrasives 4-1/2' Aluminum...
1,947 Reviews
Benchmark Abrasives 4-1/2" Aluminum...
  • Benchmark Abrasives metal cutting wheel with a 4-1/2" diameter and a 7/8" arbor is used for cutting metal, steel, metal pipes, tubes, flat sheets, shipbuilding, rail, and general metal fabrication.
  • Type 1 cutting wheels are completely flat and suitable for grinding operations. They provide consistent sharp, burr-free cutting with no loss of hardness.
  • Professional cut-off wheels are suitable for various cutting operations on stainless steel, steel, aluminum, and various other metals. This highly efficient cutting wheel delivers smooth cuts (13,000 RPM) and lower vibration during operations. It ensures a high cutting rate at a lower cost.
  • The ideal grinding wheel support angle and die grinders, high-speed saws, stationary saws, and chop saws. Made of high-speed steel material for solidity and efficient cutting.
  • All of our abrasive products are made with quality materials and exceed both ANSI and EU European Standards. We trust in delivering high-quality products to the end-user. Customer satisfaction is the lifeline of our brand.
BHA Metal and Stainless Steel Cut Off...
1,128 Reviews
BHA Metal and Stainless Steel Cut Off...
  • 25 Pack Premium Metal Cutting Discs
  • 4-1/2" x 1/16" Cut Off Wheel with 7/8" Arbor
  • 1/16 Inch (.0625") Thickness for Long Life and Increased Durability
  • Compatible with 4.5" Angle Grinder
  • Capable of cutting fiberglass, plastic, iron, steel, stainless steel, and other ferrous metals
Sale
Makita 10 Pack - 4.5" Cut Off Wheels For...
  • ✅ 10 MAKITA Premium 4-1/2” Type 1 Flat Cut Off Wheels for Metal & Stainless Steel (INOX) | Wheel Dimensions: 4-1/2-Inch x .045-Inch x 7/8-Inch | Optimized for Makita 4-1/2” Angle Grinders and compatible with All 4-1/2” Angle Grinders
  • ✅ CUT 2-3X MORE than lower quality or excessively thin wheels due to this wheel’s Carefully selected Grain Grit, Hard Bond Matrix & Wheel Thickness that provide the best balanced Cut Life, Cut Rate, Cut Precision, Power Demands & Heat Buildup in the industry, allowing you to cut longer, consistently precise with unmatched wheel integrity, moderate power demands and relatively low heat buildup
  • ✅ QUICKLY & Effortlessly Cut through All Metal, Steel and Stainless Steel parts including rebar, steel pipe, structural & galvanized steel, sheet metal, structural tubing, black steel, cable and small to medium diameter solid pieces over an extra-long life span due to Makita’s High-performance aluminum oxide grain and proprietary hard bond matrix
  • ✅ AVOID WHEEL SHATTER & Injury with lower priced wheels by relying on Makita’s proprietary strong Synthetic Resinoid Bond matrix that binds Premium White Aluminum Oxide with Phenol Resin, allowing for optimal grain wear which yields accurate cutting PERFORMANCE, PRECISION, LONGEVITY, STABILITY & INTEGRITY, cutting Longer, Faster and Reliably than other wheels that may shatter or prematurely wear
  • ✅ DESIGNED for hard and continuous use on Stainless Steel, these Makita wheels are Quality Assured, Contaminant-Free, containing less than 0.1% Iron, Sulfur or Chlorine, for rust & corrosion-free results for your Stainless Steel material

They really do what they say on the tin. Stone cut off disc can be used for cutting stones or bricks while metal cut off discs can be used for cutting metal objects.

Grinding discs types

OUR PICKS

WORKPRO 20-Pack Flap Discs, 4-1/2-inch,...
1,927 Reviews
WORKPRO 20-Pack Flap Discs, 4-1/2-inch,...
  • ✅ Meet All You Need – This premium flap disc set includes 10 pieces of 40 grit, 5 pieces of 60 grit, 3 pieces of 80 grit and 2 pieces of 120 grit, which can be used for universal applications, ranging from metal or woodworking, concrete grinding or finishing, stone smoothing or finishing, to rust removal and more - perfectly offers all you need for your projects
  • ✅ Extreme Durability and Value – Made of hard zirconia alumina material which lasts longer than standard aluminum oxide abrasive material, built for a more robust and economical grinding wheel
  • ✅ T29 Flap Discs with Fiberglass Backing Plate - T29 flap disc features angled flaps, which can be used for edge-working or contoured applications. These discs are also designed with a greater surface area than flat type for stock removal on horizontal surfaces. Fiberglass creates a strong bond with adhesives and does not contaminate the working surface. Fiberglass backing plate can effectively absorb vibration and bring more stable & efficient grinding
  • ✅ Great Performance - Each 4.5" x 7/8-Inch arbor size flap disc is compatible with angle grinders operatable of up to 13,000 RPM. Our flap disc set make it ideal for high performance blending and stock removal on metals non-ferrous materials, fiberglass, plastics, woods and other uneven surfaces.
Sale
BHA Depressed Center Metal Grinding...
1,261 Reviews
BHA Depressed Center Metal Grinding...
  • 5 Pack Premium Metal Grinding Discs
  • 4-1/2" Inch Diameter x 1/4" Inch Thickness x 7/8" Inch Arbor
  • A24T Aluminum Oxide Grains for Aggressive Grinding and High Stock Removal
  • Compatible with 4.5" Angle Grinder
  • Fiberglass Reinforced for Saftey
Makita 5 Pack - 4.5" Grinding Wheel For...
  • ✅ 5 MAKITA Premium 4-1/2” Depressed Grinding Wheels for Metal | 4-1/2-Inch x 1/4-Inch x 7/8-Inch | Optimized for Makita 4-1/2” Angle Grinders and compatible with All 4-1/2” Angle Grinders with 5/8” arbor
  • ✅ GRIND 2-3X MORE than lower quality & cost wheels due to this wheel’s carefully selected Grain Grit, Hard Bond Matrix & Wheel Thickness that provide balanced Grind Life, Stock Removal Rate, Precision, Power Demands & Heat Buildup, allowing you to grind longer, consistently precise with maximal wheel integrity, moderate power demands and relatively low heat buildup
  • ✅ EASILY & SMOOTHLY GRIND all steel and metal including welds, carbon steel, structural steel, iron, steel pipes and alloy steel over an extra-long life span due to Makita’s High-performance Brown fused Aluminum Grain and hard bond matrix | Synthetic Resinoid Bond is ideal for fast stock removal, high operating speeds and aggressive grinding action used by professional metal fabrication, auto shops, maintenance repair, construction & general industrial applications
  • ✅ AVOID Premature Disintegration, Wheel Shatter, & Injury with lower priced wheels by relying on Makita’s proprietary strong bond matrix that binds Premium White Aluminum Oxide with Phenol Resin allowing for optimal grain wear which yields smooth grinding PERFORMANCE, AGGRESSIVITY & BALANCE, grinding longer and faster than other wheels in its class
  • ✅ QUICKLY REMOVE General Steel, Metal & Weld Stock with Makita’s Coarse 24 Grit Grains | Quality Assured, Aggressive and Long Life Wheels for consistent performance in the most demanding applications

They come in both stone grinding and metal grinding types. They can be used for grinding stone or metal to either shape it or remove lumps.

Wood sanding discs for angle grinder

OUR PICKS

BHA Zirconia Resin Fiber Grinding and...
  • Pack of 25 Discs
  • 7" Diameter with 7/8" Arbor hole
  • Performs great for blending welds
  • Ferrous and non-ferrous metals, as well as wood and fiberglass
  • Designed for use with an angle grinder, use only with backing pad and nut
LotFancy Flap Discs 4 1/2 for Angle...
  • VALUE PACK: Pack of 20, 40 60 80 120 grit Assorted kit, 5 flap discs of each grit, 4-1/2 Inch Diameter, 7/8 Inch Arbor, Flat wheel bevel Type 27, 13300RPM maximum speed
  • HIGH PERFORMANCE: Premium resin-bonded aluminum oxide abrasive produces high performance: durable, good abrasion resistance, anti-static and anti-clogging
  • GOOD DURABILITY: Fiberglass backing providing durability and reinforcement
  • EFFICIENT GRINDING: Assorted grit flap discs satisfying all your blending, sanding and finishing requirements from coarse to fine
  • WIDE APPLICATION: Perfect for grinding, rust removal, beveling, welding, blending, deburring, cleaning; Widely used for rust, paint, ferrous metals, stainless steel, non-ferrous metals, wood and plastics; Fits most 4.5” Angle Grinders, such as DEWALT DCG414B, DWE402, Makita 9557PBX1, Bosch 1375A, GWS8-45, PORTER-CABLE PC60TAG, PCE810, Black & Decker BDEG400, G950 and more

These are basically just pieces of sandpaper that can be used to wear off and smoothen surfaces. They are easily replaced because they possess a method of attachment that can be fixed to a soft base to be attached to the angle grinder.

You can change the sandpaper once the current one is worn down and replaced with a new one.

Polishing Pads

OUR PICKS

Stadea PPW184E Diamond Polishing Pads 4...
  • Stadea Series Standard K - 4" Diamond polishing pads 5 step set with backing pad. Polishing pads are 3 MM thick and Hook and loop backing pad has US Standard 5/8-11 female thread
  • 5 Step Set saves fabrication time and the set includes one piece each for grits 50, 150, 500, 1500, 3000 & One Hook and Loop Backing Pad
  • For Wet and Dry Polishing, for best results recommended to use polishing pads with water
  • Works great on Granite Quartz Marble Concrete Stone Travertine Polishing
  • Optimal RPM 2200 Max RPM 4500
ATOPLEE Wool Polishing Wheel Disc,10pcs...
  • {High-Quality Material} Made of high-quality white wool.The wool is fine and pure white, not easy to shed, and wear-resistant. The polishing effect and service life are much higher than ordinary wool wheels.
  • {Size}Diameter :98mm (3.86'');Bore Diameter :16mm(0.63’‘)(for electric grinders and pneumatic grinders); Thickness:8mm; Recess diameter:40mm(1.57''); Note:Requires a special angle grinder and special nuts(fixed size).
  • {Widely Usage}Widely used for fine polishing of stainless steel, copper, aluminum, glass, ceramics, wood, marble and other hard workpieces. When working, use it with a polishing paste suitable for the workpiece, and the polishing effect will be more significant.
  • {Note}Applicable machine: Model 100 angle grinder, polishing machine.The installation hole diameter must be the same as the hole diameter of the wool wheel. You need to wear protective glasses and protective gloves while working.
  • {Package Included}10pcs wool buffing pad for angle grinder.
LotFancy Flap Disc 4 1/2 Inch, 11PCS...
4,631 Reviews
LotFancy Flap Disc 4 1/2 Inch, 11PCS...
  • VERSATILE GRINDING DISCS PACK includes flap discs of multiple grit, stripping disc, nylon polishing disc, felt polishing disc, satisfying your requirements from removal to fine polishing
  • HIGH PERFORMANCE: Each disc is bonded with fiberglass backing to absorb tool vibration and offer additional durability and reinforcement
  • Easy strip disc removes rust, paint and coatings quickly and easily, without damaging the original surface; Nylon and Felt buffing discs are ideal for polishing and finishing all kinds of surface conditions; Flap discs are designed for high speed sanding and heavy duty removal, delivering fast and long lasting cut
  • Grinding & polishing discs set is widely used for cleaning, finishing & polishing on metal, stainless steel, glass, jewelry, plastic, ceramics, marble, wood crafts
  • COMPATIBILITY: Measure 4-1/2" Diameter with 7/8" Arbor, fits most 4.5 Inch Angle Grinder, such as DEWALT DCG414B, DWE402, Makita 9557PBX1, Bosch 1375A, GWS8-45, PORTER-CABLE PC60TAG, PCE810, Black & Decker BDEG400, G950 and more

They are majorly used for polishing and finishing harder surfaces. They are screwed on to the threaded portion of your angle grinder to be tightened with a spanner. Similar to the sandpaper, polishing heads can then be fixed to the pad.

Wire Brush and Twist Knot Cups

OUR PICKS

Sale
DEWALT Wire Wheel for Bench Grinder,...
  • Highly specified wire grades are constructed with internal holding plate to ensure consistency and safety for the wire wheel
  • Constructed for even balance which provides smooth performance with the wire wheel for angle grinder
  • Constructed for even balance which provides smooth performance
  • Excellence is assured with strict standards and a full assessment to ensure the standards are met
Sale
DEWALT Wire Wheel, 8-Inch, Crimped,...
  • Highly specified wire grades are constructed with internal holding plate to ensure consistency and safety for the wire wheel
  • Constructed for even balance which provides smooth performance
  • Heavy-duty bench grinder brush with wide face and coarse carbon steel wire
  • Provides ensured consistency and safety
SI FANG 60 Grit Flap Discs 4" x 5/8 Inch...
  • 【SPECIFICATIONS】 Each Flap Disc Diameter: 4 inch, Arbor Size: 5/8 inch, Grit: 60#, Type 27, Maximum speed : 13,300 RPM, suitable for most pneumatic and electric angle grinders. YOU CAN GET: 10pcs high-density flap disc 4 inch. Large quantity meets normal work requirements. Real GOOD value for goods!
  • 【INDUSTRIAL GRADE HIGH DENSITY ALUMINUM OXIDE】 - SI FANG only provide the MOST Cost-Effective product! The flap disc 4 inch for angle grinder is made of Aluminum Oxide reinforced by glass fiber mesh for powerful cutting and excellent grinding. Its self-sharpening performs well at high temp and pressures. The 4 flap disc grinding disc constantly produce New Cusps to achieve rapid cutting and longer service life.
  • 【WIDE APPLICATION】 Widely used on ferrous metals, stainless steel, non-ferrous metals, wood and plastics, and other materials. This welding grinding disc sanding wheel is perfect for grinding, deburring and removing rust and paint on a variety of surfaces, such as for metal or wood working, stock removal, concrete grinding or finishing, stone smoothing or finishing etc.
  • 【FAST & EFFICIENT GRINDING】 - SI FANG angle grinder sanding disc (flap discs) are made under coating cooling, with low cutting temp and good heat dissipation,which can avoid surface burn marks to achieve a smooth surface. When working at high speed, the grinding heat will be dissipated quickly through the flaps and the uncovered part to maintain the bonding performance and avoid the problem of falling off or throwing out.
  • 【After-sales service】: Your satisfaction is the most important, no matter you have any questions about our products or you receive the product has any quality problems, you are welcome to send us an e-mail, we will do our best to solve all the troubles for you.

These attachments allow you to remove paint and rust off surfaces easily. They come in groups of wire brushes located around the perimeter of the cup. The cup can then be screwed onto the angle grinder but makes sure they are well tightened with the use of a spanner.

When the angle grinder is turned on, the metal brushes start to twist and spin at very high speeds making it easy to remove rust and paint easily.

Flap Sanding Discs

OUR PICKS

WORKPRO 20-Pack Flap Discs, 4-1/2-inch,...
1,927 Reviews
WORKPRO 20-Pack Flap Discs, 4-1/2-inch,...
  • ✅ Meet All You Need – This premium flap disc set includes 10 pieces of 40 grit, 5 pieces of 60 grit, 3 pieces of 80 grit and 2 pieces of 120 grit, which can be used for universal applications, ranging from metal or woodworking, concrete grinding or finishing, stone smoothing or finishing, to rust removal and more - perfectly offers all you need for your projects
  • ✅ Extreme Durability and Value – Made of hard zirconia alumina material which lasts longer than standard aluminum oxide abrasive material, built for a more robust and economical grinding wheel
  • ✅ T29 Flap Discs with Fiberglass Backing Plate - T29 flap disc features angled flaps, which can be used for edge-working or contoured applications. These discs are also designed with a greater surface area than flat type for stock removal on horizontal surfaces. Fiberglass creates a strong bond with adhesives and does not contaminate the working surface. Fiberglass backing plate can effectively absorb vibration and bring more stable & efficient grinding
  • ✅ Great Performance - Each 4.5" x 7/8-Inch arbor size flap disc is compatible with angle grinders operatable of up to 13,000 RPM. Our flap disc set make it ideal for high performance blending and stock removal on metals non-ferrous materials, fiberglass, plastics, woods and other uneven surfaces.
Benchmark Abrasives 4.5' x 7/8' Premium...
2,968 Reviews
Benchmark Abrasives 4.5" x 7/8" Premium...
  • Benchmark Abrasives 4.5" x 7/8" T29 flap disc is ideal for sanding, grinding, deburring, finishing, etc. for cast Iron, steel, stainless steel, titanium, fiberglass, wood, and more.
  • Zirconia high-density flap discs are manufactured using European zirconia cloth. The European material is superior due to its uniform particle size and premium blend of ingredients.
  • Designed to meet industrial standards, our high-quality flap discs are recommended to be used with angle grinders sized 4.5” to 5“. These Type 29 flap discs are versatile products that can be used for aggressive stock removal to surface blending.
  • Efficient flap wheels are used in various industries like automotive, household, transportation, mining, shipbuilding, foundries, construction, fabrication, etc.
  • All our abrasive products are made with quality materials and exceed ANSI and EU European Standards. We trust in delivering high-quality products to the end-user. Customer satisfaction is the lifeline of our brand.
12 Assorted GRIT 4 1/2" ANGLE GRINDER...
  • Will fit on all 4-1/2" angle grinders that have a 7/8" arbor
  • Maximum speed 13,300 rpm
  • INCLUDES: (2) Each 40, 60, 80, 100, 120,180 Grit
  • Good for non-ferrous metal, high speed steel, carbon and alloy steel paint and rust removal
  • Use for deburring, finishing work surface and light grinding

They are very versatile and can be a very useful disc to get for your angle grinder. They are majorly used for sanding and cleaning up surfaces but they can also do a little grinding. They are similar to the disc used for sanding with a benchtop disc sander.

They can prove to be the best solution if you need to do some fine because they are not as harsh as a proper grinding disc.

Hand grinders for metal. Safety Procedures

Angle grinders spin at dangerous speeds of about 10,000 rpm. Any slight mishap could lead to a very serious injury. That’s why you need to follow safety instructions and precautions in order to ensure your safety and those around you while operating the tool.

Always Use Personal Protective Equipment (PPE)

  • Everybody within your work area should wear safety glasses, hearing protection and gloves.  A flying particle might not cause much problem if hits your body but can cause injury if it hits your eye. This is why you should put on safety glasses when operating an angle grinder.
  • Gloves protect the hands from heat produced by the grinder. Burn is one of the most common injuries caused by a grinder because the operator might mistakenly touch the red-hot metal piece after the grinding is complete.
  • Angle grinders can be very loud during operation, hearing protection is also essential to prevent hearing loss.
  • Also, put on work pants when cutting hard materials such as metals. Flying streams of red-hot metals are produced when cutting, this might cause your pants to get burnt slightly. The sparks are not strong enough to burn your skin, but it doesn’t hurt to be prepared for the worst cases.

Safe Operation of your tool

Test new discs for at least one minute in a safe area and make sure they are not damaged before using them.

Orient the work so the wheel spins away from sharp edges. There is a tendency for wheels to catch on an edge causing the grinder to kick back.

  • Keep flying sparks away from flammable materials.
  • Remember to always unplug the tool when changing cutting discs
  • Store the tool out of children’s reach

How to choose an angle grinder

angle features to consider grinder

There are several factors to consider when choosing an angle grinder. Whether you are buying it for home jobs or commercial purpose, it is still pertinent that you find the best tool that will suit your needs.

Below are a few factors to consider:

Size of the angle grinder

A grinder’s size is usually determined by the wheels rather than the length of the tool. Big sized angle grinders come with large wheels making them suitable for professional grade jobs and other heavy-duty jobs.

Small sized angle grinders are more efficient in performing smaller tasks and tasks that require more precision such as sharpening and polishing metals. This is because their wheels spin at a faster rate.

Choose your angle grinder, either big or small, depending on the type of tasks you need it to perform.

Angle Grinder Motor Type

Angle grinders with high power motor are used majorly for heavy-duty construction site tasks. Motor power is usually determined by the voltage, wattage, and amp rating. These factors vary between the grinders.

The motor also determines the speed with which the disc rotates. Most handheld grinders produce about 5,000 to 10,000 revolutions per minute.

How to use an Angle grinder. Tips

  • Always try to use a safety guard that covers part of the grinding wheel.
  • Handle and store wheels properly. Storing them in areas that are not subjected to extreme temperature changes will go a long way in extending their lifespan.
  • Don’t force a wheel onto the tool or alter the size of the mounting hole if it doesn’t fit. Instead, get one that fits.
  • Don’t use a wheel on a material is not designed for. Doing this might damage the wheel or cause personal injury.
  • Always inspect your angle grinder and all discs for possible damage before mounting. Replace cracked or damaged discs.
  • Don’t exceed the safe operating speed specified by your tool’s manufacturer.

FAQs

Q: Can angle grinders cut wood?

A: Yes. However, it’s not advisable to use angle grinders to cut wood because it carries a lot of risk of injury to the tool operator.

Angle grinders spin at extremely high speeds. If the blade snags while making woodcuts, the kickback of the tool could be extremely dangerous. For a task like carving, sanding or cutting wood, we recommend using tools like Dremel for work with wood.

Q: Can an angle grinder be used as a sander?

A: Yes, all you need to do is attach flap discs and you’re good to go.

Q: what size angle grinder should I buy?

A: A 4.5-inch diameter angle grinder is suitable for most workshop tasks but if you need to make larger cuts you can get angle grinders with a diameter greater than 7 inches.

Q: what is angle grinder kickback?

A: An angle grinder kickback occurs when the rotating wheel snags on an object causing it to suddenly kickback. Take extra care when working on sharp edges and corners, and maintain a proper posture to reduce the effect of kick back in case it occurs.

Conclusion

An angle grinder is a tool you need to add to your tool chest because it allows you to cut anything any of your other tools can't. And it will also find regular use when you need to sharpen your metal edges or clean off debris, cement or rust from them.

A 4.5-inch angle grinder is great for all sorts of light construction tasks and home repair projects. but for larger cuts and bigger depths, you can get other sizes.

An angle grinder is also one of the most entertaining tools to operate. most DIYers will agree.

Select an angle grinder based on the above factors and also the type of jobs you need it. It should also be an angle grinder that fits into your budget. You can get a couple of good ones at low prices too.

Resources and Further Reading

Click to rate this post!
[Total: 2 Average: 5]

Last update on 2024-04-01 / Affiliate links / Images from Amazon Product Advertising API

1 thought on “Types of Angle Grinders: Uses, Discs, Sizes and Wheel Types”

Leave a Comment