15 Most Powerful Angle Grinder Disc Types And Their Uses

Power Tools Lab is reader supported. When you buy through links on our site we may earn an affiliate commission. Learn More image credits: cifi.it

Angle grinder disc types and their uses

This article will help you learn about 15 of the most used angle grinder disc types and their primary usages.

This guide also shows the types of these types of discs that can be used on target materials such as wood chips. For more information, see Guides below.

1. Cutting discs

Cutting Disks are interchangeable tools used on an angle grinder for cutting steel, stainless steel aluminum, and other metal alloys.

Angle grinder disc types

  • Made from reinforced fiberglass wire reinforced with organic resins and abrasive materials formed under heat/pressure certain wheels cut faster than others.
  • Aluminum oxide and zirconia grain are commonly used and offer toughness and good performance for cutting on steel.
  • Smith & Arrow provides cut-off wheels in INOX Grade so they contain no Fe and thereby are perfect to install on both stainless and mild sheets of steel.
  • They come in different thicknesses and the type of wheel you choose depends on the type, shape, and thickness of the steel to be cut.

2. Cut-off discs

The second most useful wheel when grinding angles is the cutoff discs.

Angle grinder disc types

  • Flying tiny parts of a damaged cutting wheel is dangerous and can have severe losses.
  • The safety devices on an automatic tool can help keep things smooth at an angle.
  • Ronix cuts are made of the finest materials making it easier for work to occur compared to low-quality discs.
  • Changing the angle grinder in a position that bends will cause them to shatter easily.
  • You have to use high-quality safety gear when working with these.

The most common way to cut steel plates and wires is to use a cutting disc.

3. Grinding discs

Depressed center rolling wheels are a preferred grinder attachment for weld grinding, pipe-notching, bevelling, and general heavy stock removal – on mild steel parts.

Angle grinder disc types

  • These discs made with aluminum oxide bond are most effective on mild steels or softer metals and are not suitable for use with stainless steel.
  • Smith & ARROW provide grinding wheels in 3” 71 mm / 4” 100 mm / 4.5” 115 mm / 5” 125 mm / 7” 160.
  • The video for Smith & Arrow’s Grinding Disk here is also available.

4. Grit Discs

Grit discs are among the cheapest alternatives to angle grinders. The discs are fairly thin (around 6mm) compared to other grinding discs.

Angle grinder disc types

  • The cutters are largely fast and easy to use compared to the majority of other solutions.
  • They are lightweight but still useful in overhead work applications or ladders.
  • A grit disc grinder is not a heavy machine that can be easily pushed down a ladder to work.

Grit discs have an unlikely lifespan before replacement is needed but provide an economical solution for the grinding of harder substances like stones.

Related: Uses for angle grinders?

5. Flap disc

Flap Disks using Blue – Green Zirconia is ideal for soft and stainless steel.

Angle grinder disc types

  • flap discs are built to allow the abrasive grain to cut effectively for as long as possible and then release cleanly to open up the new cutting grain of the flap underneath giving more stability.
  • This is against other flaps which use significantly less effective (brown/red) Aluminum Oxide which is also inconvenient for working on stainless steel.

These zirconium flap disks can be made by using zirconium.

6. Strip Discs

Poly-Clean and Stripe Disc are made of Poly-fibre coated with abrasive grains.

Angle grinder disc types

  • They’re especially good at providing quick and effective treatments of surfaces that are extremely difficult to clean.
  • Smith & Arrow stock strip wheels in coarse grit (purple) and medium grit (black) Strip Wheels are available in 3“ 75mm / 44′′100mm 

Also like: Can A miter saw cut metal?

7. Polishing Pads

It appears to be self-explanatory: use a polishing pad and lightly polish desired surface.

Angle grinder disc types

  • Polishing pads are offered in a range of shapes and materials which have all unique finishing qualities.
  • Always polish them onto angle grinders with a dial control unit.
  • Due to the special speed required to polish, not all angle grinders are appropriate for polishing work.

Not all angle grinders are suitable for polishing so don’t use them with the speed that can be controlled from a speed switch rather than from a specified t.

8. Fiber sanding discs

Fiber sanding discs are often used when sanding high-quality materials.

Angle grinder disc types

  • Due to the quality of the product, it will be much more likely that the material will not end up getting scratched.
  • This makes it easier for refinishing products to offer a clean finish.
  • This means that you do not have to spend as much time sanding in comparison to when you don’t use this type of sandpaper.

The damage that occurs due to using these disks is minimal which makes it easy, economical, and safe for these types of products because they are expensive.

9. Diamond cutting discs

Using a cut-away disc regularly can’t operate with granite, marble, or granite.

Angle grinder disc types

  • It takes only one special disc that is cut in diamonds. This disc has a diamond grit at the edge of its steel disc, making it much harder and more durable.
  • The diamond is one of the toughest, hardest, and most dependable materials this tool can withstand the toughest situations.
  • Of course, these crystals and discs are quite expensive although a good price should be. It is cutting through the hard metal like cheese!

10. Wood Discs

The preferred wooden disc was Arbortech which represents the most durable and the least susceptible.

Angle grinder disc types

  • However, picking a disc that doesn’t use hardwood reduces its value. It’s common practice to buy discs with dual-purpose that can slice both wood and metal.
  • This is particularly useful when a nail must be lifted from wood.
  • Most different kinds of wooden disks exist on the market, but the most popular is arbor tech.
  • When buying discs for the angle grinder, consider to what degree the material is and what your purpose is.

There are many options on the market for every need.

11. Ceramic Sanding Disc

Angle grinder disc types

Ceramic sanding pads are not as commonly used in professional fields despite their long service life.

  • The work is accomplished without the fear they will overload due to their ceramics.
  • It was recently revealed that ceramic sanding discs – referred to as ceramic disk sanders – have a higher sanding capacity and can be made more economical by using them than aluminum or steel counterparts.
  • According to functional requirements, ceramic sanders can do just about everything in a flap disc.

12. Grinding Wheel

Angle grinder wheels are disc-like and often have a ribbed edge designed to remove rough metal edges at a swift pace.

Angle grinder disc types

  • These wheels are used in various types of Metal Fabrication jobs. They require the roughing and trimming of fresh cuts.
  • However, it is always appropriate to take safety precautions when using this type of disc.
  • In turn, this contact can cause a large number of sparks on contact with any other source of contact.
  • Also, the blades are very hot so they should never be touched before they are in use and should be kept dry.

This blade tends to. The heat was very intense. So they do not need attention. Take advantage.

13. straight bristle wire wheels

A straight bristle wire wheel (SBW) is a common type of wire brush that may be used for grinding various materials.

Angle grinder disc types

  • The material is often secured to the shaft by pitch, glue, or epoxy.
  • The head has bristles of uniform pitch and physical dimensions.

14. Angle grinder cutting wheels

Most of the cutting discs are made from aluminum, however, there are also some new discs on the market made from ceramics.

Angle grinder disc types

  • Ceramic discs require a very specific type of disc that is cut in diamonds.
  • These discs can be expensive because they have a lot of diamonds that have been cut into the metal.
  • These types of discs work well with granite, marble, and granite because they’re harder and more durable than a regular aluminum disc.

15. Wire Wheels

Angle grinder disc types

  • Wire wheels or twisted wire wheels are distinctive from other types of angle grinders.
  • Go for thicker, coarser bristles for quicker work but do not need the exacting.
  • For better accuracy, you can select a wire disc with a finer bristle.
  • There’s lots of time on your hands for you to find something to do to remove rust or old paints.

Adjust your surface to suit your use. Select discs with fine ridges for precision and accuracy.

Types of angle grinders 

Angle grinder disc types

  1. Cordless grinders can be carried to different areas without connection to any voltage outlets. Cordless grinders are particularly useful when used in ladder or scaffold grinding tasks.

Angle grinder disc types

  1. Pneumatic angle grinders are well suited to the high accuracy task and are considerably lighter in weight than cordless alternatives.

Some models contain throttle levers and paddle switches for enhanced control. The disc angle makes straight grinders an easier choice to make than standard angle grinders.

Variable Speed Angle Grinders may be set at different speeds for a broad range of applications. With the opportunity on setting the disk in particularly high RPMs, you can achieve efficiency.

Speed of the wheels and discs

Angle grinders with the capacity for smaller discs generate a greater RPM than large models. A medium-angle grinder is predicted to go faster than 8000rpm.

Larger grinders can have more power than smaller grinders. On computers, the rotating times per second (RPM) is often expressed as a ‘no load speed’, which is equivalent to the fastest rotation without any disc installed.

In some cases, an angle grinder should have extra power – but they may not always.

Tell me the most dangerous angle grinder wheel?

The cut-off wheel is very convenient but it is dangerous because it is thick. If you twitch or lose balance while using this grinder it should shatter.

Some projectiles float away which can damage an ear or hand inflection – for example…

Keep your face out of that place and out of the spindle of the spinning wheels. A chop saw should instead be used for a few specific types of work including shortening long tubing or angle iron.

Safety glasses, face masks, grinder guards, heavy gloves, and no spectators are crucial when you spin this wheel.

Comparing angle grinders

There are many key factors to consider when comparing angle grinders. Read this description before doing some research about shopping.

How do I choose the right angle grinder?

Most tasks required by the angle grinder are carried out over extended periods. Durability will be one of the underlying factors; it is required to ensure that the right amount of force is generated for each mission.

It may be essential to make repeated passes of workpieces with the handheld tool before the setting of the grinder.


Generally speaking, if you use angle grinders you should goggle on while working.

Angle grinder disc types

This is extra important using a wire wheel where wires often snap up. There’s nothing else that you want in your eyes.

I have observed quite a few young users ignoring safety measures when working at grinding tables. My whole guide was titled angle grinder safety and so it does matter.

Power Tools Lab Top Picks!

uses for an angle grinder

Bosch 4-1/2-Inch Angle Grinder

Our Rating


uses for an angle grinder

Milwaukee 6140-30 4-1/2" Small Angle Grinder

Our Rating



Cut-off wheels with 7/8 Inches arbor fit the special shoulder for angle grinders with a 5/8-1 Inches flange. Cutting wheels are significantly thicker than standard grinding.


The most advanced angle grinder grinding wheels with the strongest grip on metal is incredibly thin and light. Thin cut wheels flex and therefore crack easier.

If you are working on one desk in a comfortable place with a perfectly positional workpiece it would be fine to use a thin cutaway wheel.


If you plan on working in an awkward position under the vehicle our staff recommends you use something more rigid which resists shaking if you lose the balance or position.

Grinding wheels must be handled, placed, and used with proper precaution and protection.


Wheels should be carefully handled to prevent falling and bumping as they may cause damage or cracks.


The storage room cannot suffer extreme differences in temperature and humidity because this may affect the mechanical bond in some wheels.


If the wheel is too heavy to be carried safely by hand use a hand truck, wagon, or forklift with cushioning provided to stop loss.


If the wheel cracks during operation a careful inspection of the machine should occur to ensure if protective hoods and guards haven't been damaged.


Grind with any of the two cylinders on the back and side of one wheel.


The angle grinder disc types and their uses are not all the same.

It is important to know which one will work best for what you need in order to get your job done well.

If you plan on doing any sanding or cutting, it would be wise to invest in a quality blade that can stand up against whatever tasks come its way.

How about an abrasive cut-off wheel? These discs are great when it comes time for demolition jobs like removing concrete slabs, asphalt shingles, tiles, etc…

I hope Angle grinder disc types and their uses guide will serve as a quick reference. IF you like this article hit the newsletter/subscribe button to see our new posts about earbuds and share it with your friends, also gives back your feedback if you like or dislike anything in the comments section. 
thank you.

Did I Miss Anything?

Now i'd like to hear from you:

Please let me know I miss anything Or Maybe I didn’t mention!

Leave a Comment


Table of Contents