The Best Die Grinders – Reviews for Your Shop 2020

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Here is our Top Pick

Ingersoll Rand 3101G

Ingersoll Rand 3101G Edge Series

The best die grinder can smooth the finishes on the metal pieces that you create and cut through thick and thin sheets of metal. To find the best model, we looked at features such as the overall design, rpm and motor included. That helped us pick the Ingersoll Rand 3101G Edge Series Air Angle Die Grinder as the top angle grinder.

Not only can you adjust the throttle to get the speed that you need, but you can also use it for hours thanks to the ergonomic grip. It even has a grease fitting that extends the life of the tool. You can see how the 3101G compares to other grinders below.

Top 5 Best Die Grinders on the Market

5 Best Die Grinder Reviews (2020)

1. Ingersoll Rand 3101G Edge Series Air Angle Die Grinder - Top Overall Pick

Though we found die grinders that are worth the money, our choice for the top grinder comes from Ingersoll Rand. The 3101G measures nearly seven inches long to fit in tighter spaces and has a comfort grip with an ergonomic design to prevent cramping. At only 1.3 pounds, it weighs less than other die grinders too.

Capable of producing up to 20,000 RPMs, it works quickly when used for sanding and other jobs. The rear exhaust produces a puff of air to keep your workspace clean and to push any debris away from the motor. Ingersoll Rand also gives you lever throttle that locks to keep the motor running.

Key Features:

  • Rear exhaust
  • Self-lock lever throttle
  • Long-life ball bearing construction


  • Heavy-duty design can handle most grinding and cutting applications
  • Lasts longer due to the construction made from ball bearings
  • Works in tight and cramped spaces
  • Produces 20,000 revolutions per minute


  • Lacks good speed control
  • Doesn't have as much power as larger grinders do

2. AIRCAT 6275-A 4” Composite Inside Cut-Off Tool - Premium Choice

Our choice for the top premium grinder comes from AIRCAT. While it costs more than other grinders, it's worth the price because you can extend the length of the handle to get into tighter places and spaces you might otherwise miss. It features a one-horsepower motor that is more powerful than others and reduces the risk that it might stall.

With the rotational guard, you can adjust the grinder into 11 different positions. The four-inch wheel works at a 30-degree angle and uses high-quality steel to ensure that the gears last longer. Depending on the type of metal you use, you can use this grinder with 18 gauge and ¾ inch steel.

Key Features:

  • Spindle Lock for easy Wheel Change
  • Ergonomic handle design
  • Vibrotherm Drive provide longer working life


  • Extended length helps you get into tighter and hidden spaces
  • Made from quality steel to last longer
  • ​Spindle locks and unlocks to change the wheel
  • Works on rolled steel of ¾ inch and 18 gauge steel


  • More expensive than other die grinders
  • Doesn't have a reversible option

3. ​DEWALT DWE4887 1-1/2 Inch Die Grinder - Best for Money

DEWALT makes the best electric die grinder in this 1-1/2 inch model, which has an ergonomic grip to help you use it longer. That grip helps you get a comfortable handle on the grinder and eliminates the vibrations that it produces. With a built-in collet, you have all the storage space needed for the included accessories.

Two of the top features of this die grinder include the motor and AC/DC capacity as well as the paddle switch, which locks the motor and keeps it running. As it runs on AC and DC power, you can use the grinder with a standard outlet or a generator in the field. The 25,000 rpm motor runs on 4.2 amps to deliver more power.

Key Features:

  • AC/DC capacity
  • Paddle switch with lock-on button
  • Comfortable gripping area


  • 4.2-amp motor has a 25,000 rpm when used in any application
  • AC/DC design lets you use it with generators and outlets
  • ​Paddle switch locks the grinder and keeps it running
  • Ergonomic grip for comfortable use


  • A little more expensive than other die grinders
  • Lacks variable speeds

4. ​SUNTECH SM-52-5300 Sunmatch Pneumatic Die Grinder

As you look for the best air die grinder to meet your budget, you might consider the Sunmatch from SUNTECH. Though some dislike the plastic pieces located on the grinder, it has a mini design that lets you use it in spaces where other grinders won't fit. The Sunmatch has a comfort grip on the end to give you a more comfortable trigger that is easier to use.

Thanks to the rear exhaust, you don't need to worry about metal flakes and debris getting in your way. Not only does the exhaust push the debris away from you, but it also has a silencer that helps the grinder run quietly. With the safety lever, you can adjust the throttle to stay safe.

Key Features:

  • Built-in Comfort Grip
  • Rear Exhaust
  • Safety Throttle Lever


  • Comfort grip for easier use
  • Rear exhaust keeps the work area clean and protects the motor
  • ​​Maximum 20,000 rpm output
  • Miniature design for use in different spaces


  • Includes some flimsy plastic components
  • Can break down faster than other grinders

5. ​AmPro A3028 Gearless Angle Head Die Grinder

With the AmPro A3028, you get the best angle die grinder without spending more than $100. It has a compact size that helps you get into tighter spots and places where other grinders don't fit. Thanks to the mechanism that doesn't use gears, it lasts longer than similar grinders do.

When using this die grinder, you'll find that the exhaust helps push the metal debris away from the motor and front to reduce wear on the motor and keep your workspace clear. Designed for sanding and quick jobs, it works well for touch-ups too. No matter what type of grinding you do, you'll find that the motor has a maximum rating of 25,000 rpm.

Key Features:

  • Unique gearless mechanism for long power life
  • Rear exhaust 
  • 25, 000 RPM


  • Suitable for sanding and touch up work
  • Lasts longer because it doesn't use gears
  • ​​Exhaust pushes the debris away from the grinder
  • Works in smaller and tighter spaces


  • Can seize if you push the motor too hard
  • The trigger ring can feel loose

Final Verdict: Our Top Choice

Ingersoll Rand 3101G Edge Series

Though Ingersoll Rand makes the best die grinder on the market, it's not the only one that is worth your money. Our four other choices include the best variable speed die grinder and other models that can help you with different applications. You might want to narrow down your choice to the best cordless die grinder, especially if you work in areas without power.

With the Ingersoll Rand die grinder, you get a simple tool that can perform touch up work and tackle more serious sanding jobs. It's comfortable to use and hold and has a rear exhaust for convenient cleaning. When you compare it to the other top models, you'll see why it's such a popular choice.