die grinder vs angle grinder

Die Grinder vs Angle Grinder: Which is the Best?

There are a few power tools that are essential in any workshop. The angle grinder and die grinder are two of the most versatile tools. While they both have their purposes, it can be tricky to decide which one to use for a particular job. In this blog post, we’ll look at the differences between a die grinder vs angle grinder and help you decide which is the best rotary tool for your needs.

What is a Die Grinder?

die grinder vs angle grinder

A die grinder is a powerful tool for fine finishing, deburring, and polishing. The versatile tool is designed with an abrasive bit that spins at speeds up to 20,000 RPMs.

What is an Angle Grinder?

die grinder vs angle grinder

An angle grinder is much bigger than the die grinder, it’s typically about 3 times the size. Angle grinders are ideal for removing excess build-up on metal or concrete, and they can even be used for sanding wood. It’s not designed to be as precise as the die grinder, but it is far more versatile.

Die Grinder vs Angle Grinder: Differences


  • Die grinders typically use separate attachments, such as grinding wheels or sanding discs.
  • The angle grinder uses a variety of 4-inch (10 cm) cut-off disks and grinding wheels that attach to the spindle in seconds.

Rotation Speed

  • Most die grinders have variable speed settings, allowing you to control the RPMs.
  • The speed settings on an angle grinder typically range anywhere from 4,500 to 9,000 RPM.

Cutting Power

  • A die grinder is designed to create a cleaner cut since it is very precise in terms of size and power output.
  • Angle grinder machine is great for quickly removing large amounts of tough materials in one pass.

Cordless and Corded

  • Most die grinders come with a cord, while angle grinders can either be corded or cordless.
  • If you need to do some polishing in hard-to-reach places, it’s probably best to get a cordless angle grinder, so you don’t have to worry about getting tangled up in the power cords.


  • When using an angle grinder, you’ll need to attach the tool every time you need to use it.
  • Die grinders offer a wide variety of applications that can be used as part of the tool without having to detach and reattach them each time you need something different.

Disc Options

  • You can choose between round or square discs when shopping for angle grinder discs, but die grinders offer options such as rectangle wheels.
  • If you need to maximize the work area, square and rectangle disc grinders are great options to consider.


  • The most popular attachments for die grinders include a wire brush, belt sander, polishing wheel, and rubberized hand pads.
  • An angle grinder typically comes with a collection of 4-inch cut-off disks, grinding disks, and abrasive coated cutting wheels.
  • If you need to do some extra cutting, angle grinders are usually a better choice.

Power Source

  • The way the handheld power tools are powered is another significant distinction.
  • Electricity is nearly universally used to power angle grinders. For example, an angle grinder that isn’t driven by electricity or a battery comes to mind.
  • On the other hand, die grinders are driven mainly by compressed air. Many die grinders run on batteries, but only corded electric die grinders are widely used.

Die Grinder vs Angle Grinder: What are the Benefits?

The benefit of using a die grinder compared with an angle grinder is that you can achieve very precise finishes. The bit has a handle on the side, allowing for superior control of where it’s all pointed, unlike an angle grinder, which simply spins in one direction.

The benefits of using an angle grinder are clear as they’re a much more versatile power tool than die grinders, making them ideal for a variety of jobs. They’re great for removing rust and excess material, as well as grinding away at old paint or rust.

Die Grinder vs Angle Grinder: What are the Drawbacks?

The main flaw of an angle grinder is having a lot of battery power, but it doesn’t have much precision. The bit will spin in one direction the whole time, so if you need to grind using a variety of angles, die grinders are definitely better options.

Die grinder polishers also have a keyless chuck, which means you have to tighten the bit manually. This can be a problem if you need to do something immediately.

Which is the Best to Choose?

In this case, it really depends on what you need the tool to do. For example, if you want a rotary power tool that’s ideal for prepping heavy-duty work, then you should consider getting an angle grinder. Unfortunately, die grinders are perfect for those jobs that require a more precise touch.


Can a Die Grinder be used to cut metal?

If you’re cutting metal, a die grinder isn’t a good idea. Instead, a die grinder’s horsepower and disc restrictions are just insufficient to obtain metal outcomes.

What should I look for in a Die Grinder?

If you’re buying an electric die grinder, the power rating will be specified in volts, such as 18 or 20 volts. On the other hand, Pneumatic die grinders have motor power ratings of 14 HP or 12 HP. A more excellent power rating translates into improved performance for the user in each of these scenarios.


In the end, it is up to you which tool you choose for your business. Both have their own unique advantages and disadvantages, that we’ve outlined in this article. Hope you have learned everything about die grinders vs angle grinders.

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