Best Die Grinders

Last updated on August 20th, 2021

Die grinders are portable and truly versatile units that come with a huge range of bits that you can swap whenever you need to switch between tasks. Whether it’s polishing, honing, sanding, or grinding, they are fantastic for tasks that require precision. The market is flooded with hundreds of brands, and it can be challenging to find the best die grinder for your needs. Keeping this in mind, we’ve come up with our list of the best die grinders in the market. They are a perfect blend of quality, efficiency, and affordability. We’ve also included a buying guide so that you’ll know exactly what to look out for when you purchase your unit.

List of 10 top Die Grinders

Image	Name	Details	Rating	Availability
	DEWALT 20V MAX DCG426B	Collet Size: 1/4 in. Power: Electric (Cordless) RPM: 25,000 Weight: 3 pounds Size: 17 x 10 x 5 inches Warranty: 3 Years	5 Out of 5	Amazon
	Ingersoll Rand Angle Die Grinder 5102MAX	Collet Size: 1/4 In. Power: Pneumatic RPM: 20,000 Weight: 1.41 pounds Size: 3.86 x 0.94 x 2.76 inches Warranty: 1 to 3 years	5 Out of 5	Amazon
	Ingersoll Rand Angle Die Grinder 3101G	Collet Size: 1/4 In. Power: Pneumatic RPM: 27,000 Weight: 1.3 pounds Size: 9.5 x 6 x 2 inches Warranty: 1 Year	4.9 Out of 5	Amazon
	Makita GD0601	Collet Size: 1/4 in. Power: Electric RPM: 25,000 Weight: 3.75 pounds Size: 14.13 x 3.23 x 3.23 inches Warranty: 1 Year	4.9 Out of 5	Amazon
	Ingersoll Rand 308B	Collet Size: 1/4 in. Power: Pneumatic RPM: 25,000 Weight: 1.01 pounds Size: 6.85 x 1.58 x 2.64 inches Warranty: 1 Year	4.9 Out of 5	Amazon
	Jet JAT-401	Collet Size: 1/4 in. Power: Pneumatic RPM: 23,000 Weight: 1.64 pounds Size: 6.99 x 3.78 x 2.03 inches Warranty: 2 years	4.9 Out of 5	Amazon
	Ingersoll Rand 3107G	Collet Size: 1/4 In. Power: Pneumatic RPM: 27,000 Weight: 1.75 pounds Size: 9.5 x 6.25 x 1.75 inches Warranty: 1 Year	4.8 Out of 5	Amazon
	AIRCAT Angle Die Grinder 6255	Collet Size: 1/4 In. Power: Pneumatic RPM: 20,000 Weight: 1.19 pounds Size: 7.1 x 3.1 x 1.5 inches Warranty: 2 years	4.8 Out of 5	Amazon
	DEWALT Angle Die Grinder DWMT70782L	Collet Size: 1/4 In. Power: Pneumatic RPM: 20,000 Weight: 1.17 pounds Size: 10.2 x 5.6 x 2.4 inches Warranty: 3 Years	4.8 Out of 5	Amazon
	NEIKO PRO 30115B	Collet Size: 1/4 In. Power: Pneumatic RPM: 22,000 Weight: 1.96 pounds Size: 12.4 x 5.71 x 1.89 inches Warranty: 1 Year	4.8 Out of 5	Amazon

We hope the list has helped you pick the perfect die grinder. If not, let’s go into detail and pick the one that suits your needs.

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DEWALT (DCG426B) 20V MAX

Review: The DEWALT 20V MAX comes packed with tons of features at a reasonable price. It does have a large footprint but weighs 3.56 pounds with the battery, so you shouldn’t have any problems carrying it around. That’s not all; the dual-position rockers allow you to hold the unit in various ways. It’s very convenient, and the construction is sturdy; we’re sure you’ll be using it for a long time. This die grinder also supports Dewalt’s tool connect feature allowing you to inventory and check the unit’s location through the Dewalt app. That’s not all; you can even check how long the unit has been running for, trigger pulls, battery life, and cool temperature.

When it comes to performance, it’s quick and efficient. It has three-speed settings, and, in our testing, the RPM was excellent in every mode. The motor can go all the way to 25000 RPM, making it suitable for heavy tasks as well. Another fantastic feature is that it comes with LED lights fitted at the grinder’s nose, making it easy to work in poorly lit conditions. The DEWALT 20V MAX is a cordless unit, so you don’t have to deal with annoying wires or worry about the cord length. It’s also a brushless motor, so you don’t need to bother about brush changes, but it doesn’t come with batteries which isn’t a major con but might put off some potential customers.

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Ingersoll Rand 5102MAX Air Die Grinder

Review: If you’re looking for power and comfort, the Ingersoll Rand 5102MAX Air Die Grinder is a must-have. It’s exceptionally well-built, and one of the best features of this die grinder is the in-built lubricating wick that increases the gear’s life. Thanks to this, you don’t have to oil it as much as you’ll need to with other models. This die grinder’s design integrates a low-profile throttle lever, and the advanced ergonomic handle ensures maximum comfort while working. It also comes with an all-bearing construction that minimizes fatigue and increases the longevity of the tool. Another noteworthy feature is the spindle lock feature which allows for quicker abrasive changeovers compared to similar models.

In our testing, we were impressed with the performance of the Ingersoll Rand 5102MAX Air Die Grinder. With a horsepower of 0.4 and an RPM of 20,000, it has all the power you’ll need for even the toughest of tasks. We were also impressed to see that it made minimal vibration, making it suitable for tasks that require precision as well. One of the best features of this die grinder is the safety trigger that works seamlessly with the hand’s natural movements and doesn’t require a lot of effort. In all, it’s an excellent product that works well even in harsh conditions, but due to the impressive power, it does tend to use up a lot of air.

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Ingersoll Rand 3101G 1/4″ Heavy Duty Angle Die Grinder, Black

Another noteworthy feature is the contoured grip that ensures optimum comfort while working with the tool. The handle is also anti-vibration, and when we worked with it, we were impressed that the vibration was much lower than other similar models. That’s not all; it also comes with a very low price tag making it an excellent choice if you’re looking for the best die grinder under a budget.

It has an RPM of 20,000, and it was able to effortlessly handle whatever we threw at it. The burr is perpendicular to the die grinder, making it ideal for angle work and for reaching narrow spaces. This unit can fit a ¼ burr extension of any type in its collet, and in our testing, we found it particularly useful for polishing. We also noticed that the pressure was applied evenly thanks to its firmness and shape. This die grinder’s trigger is adjustable and features a safety break under it, ensuring that it triggers only when it’s held. Overall, it’s an excellent angle die grinder with an affordable price tag, but it does tend to use a lot of air, so make sure that your air compressor has a lot of tanks if you’re going to be using this unit.

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Makita GD0601 1/4″ Die Grinder, with AC/DC Switch, Blue

Review: On our list, the Makita GD0601 1/4″ Die Grinder is another standout unit with its capabilities and features. The first thing you’ll notice about this unit is the compact design; we found it very easy to use and store. It’s lightweight at just 3.7 lbs, and we didn’t experience any fatigue even after we used it for long hours. We also loved that the on/off switch is conveniently located at the handle for ease of use, and the ergonomic grip makes it very easy to handle. One of this unit’s best features is the protective zig-zag varnish that effectively seals the varnish from dust and debris, ensuring longevity. That’s not all; the vent slots of this die grinder are designed in such a way that it exhausts air away from the user.

When we put the Makita GD0601 1/4″ Die Grinder to test, we were impressed by its performance, and it performed remarkably well at grinding. The power cable is 2.5m long which will be sufficient for most tasks.  It has an RPM of 25,000, making it suitable for heavy tasks as well. We were also pleased that the unit generated minimal noise while operating. It also comes with a one-year warranty, so you don’t have to worry if anything goes wrong with the unit. Overall, it’s an excellent choice if you’re looking for the best electric die grinder. On the downside, it doesn’t come with a variable speed setting.

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Ingersoll Rand 308B Air Straight Die Grinder

Review: The Ingersoll Rand 308B Air Straight Die Grinder offers excellent performance and comfort. The first thing you’ll notice about this unit is that it’s very well-built and weighing in at just 1.02 pounds, its very lightweight, and we worked with it effortlessly. The composite grip ensures ergonomics and optimum comfort even if you use it for a long period of time. Thanks to the ball-bearing construction, it’s incredibly durable, and the built-in lubricating wick further enhances longevity. We also loved the inclusion of the integral safety-lock throttle lever, which effectively ensures that the unit doesn’t start up accidentally and cause mishaps.

The Ingersoll Rand 308B Air Straight Die Grinder is a fantastic product, and whether it’s grinding, polishing, de-burring, weld breaking, or porting, it performs exceptionally well. This grinder also does well at reaching narrow spaces. The rear exhaust ensures that the air is directed away from the user so that you can work without any interruptions. In our testing, we noticed minimal vibration, and the noise level was also very low compared to other die grinders. It doesn’t use a lot of air, and the affordable price tag makes it an excellent value for money. However, the trigger is a little stiff, but you can get used to it after a few uses.

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JET JAT-401, 1/4″ Pneumatic Die Grinder

Review: If you’re on the hunt for the best pneumatic die grinder, the JET JAT-401, 1/4″ Pneumatic Die Grinder 505401 is an excellent choice. The first thing you notice about this unit is the design; the sleek and classy design makes it a standout. Housing an aluminum construction, it’s very sturdy but lightweight at the same time. We used it for long hours and didn’t experience any fatigue. This unit also boasts a sealed ball bearing design that effectively keeps contaminants out and lubricants in ensuring smooth operation every time you use it. Despite its affordable price tag, we were delighted to see that it come with a built-in air regulator offering you precise speed control.

When we put the JET JAT-401, 1/4″ Pneumatic Die Grinder 505401 to test, we were impressed with its performance. Regardless of what we threw at it, it handled it effortlessly and performed exceptionally well at grinding bits. In our testing, we noticed minimal vibration, making it suitable for tasks that require precision. This unit also generated very little noise, which is quite rare at this price point. That’s not all; this die grinder also comes with a safety throttle lock which effectively prevents accidental engagement so that you can use it with peace of mind. In all, it’s an excellent unit with a low price tag, but we noticed that it does ten to use a lot of air compared to other similar units.

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Ingersoll Rand 1/4″ Air Die Grinder 3107G

At just 1 pound, this die grinder is a breeze to work with, and even after long hours; we didn’t experience any fatigue. That’s not all; the ergonomic grip ensures optimum comfort while using this product and offers exceptional torque accuracy. At this price point, we were delighted to see that it came with a self-locking throttle that ensures safety and control while working.

We have no complaints about the Ingersoll Rand 1/4″ Air Die Grinder 3107G when it comes to performance. Despite the compact size, it comes with 1/3 horsepower, a ¼ inch collet, and an RPM of 27,000, making it suitable for heavy tasks as well. Whether it’s cutting, grinding, or sanding, it performed exceptionally well. In our testing, we also noticed that it didn’t vibrate a lot making it suitable for tasks that require precision. That’s not all; it’s also quieter than most units. This unit also has a rear exhaust so that you can work without any disturbances. Ingersoll has also backed this unit with a one-year warranty, so you don’t have to worry if anything goes wrong with this product. On the downside, it does use a lot of air, so make sure that your air compressor has a huge tank.

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AIRCAT 6255 Professional Series Red Composite Angle Die Grinder

The handle is very ergonomically designed is particularly made to prevent stress and fatigue on the user’s hands. In our testing, we found it very comfortable to hold and maneuver. One of the standout features of this unit is the trigger; it’s very well-positioned, and unlike other products, you don’t have to put a lot of pressure to make it work.

When we put it to the test, we were impressed by its performance. It boasts a free speed RPM of 20,000 and a horsepower of 1/2, making it suitable for heavy tasks as well. It’s particularly ideal for high-speed de-burring, porting, smoothing, and blending in confined spaces. The AIRCAT 6255 Professional Series Red Composite Angle Die Grinder generates minimal vibration, so it’s perfect for tasks that require precision. One of the most hyped features of this unit is the patented quiet technology, and true to its claims, it generates very little noise while operating. However, it doesn’t come with a single attachment, unlike some of its competitors. Overall, if you want the best air die grinder with a reasonable price tag, it’s a great choice.

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DEWALT (DWMT70782L) Angle Die Grinder

It also features an ergonomically designed cushion grip and, in our testing, we found it very comfortable to hold and didn’t experience any stress or fatigue even after long hours of usage. The touch control trigger is positioned very well and is very responsive. The trigger is effortless to use, and during operations, it helps to apply the needed amount of power, making it suitable for various tasks.

The DEWALT Die Grinder, Angle (DWMT70782L) performed exceptionally well in our testing. Its motor is able to reach an RPM of 20,000, making it suitable for heavy tasks as well; with its lightweight design and touch control trigger, it’s ideal for tasks that require a lot of precision. When we used this unit, it also generated very little vibration, which a lot of users would like. That’s not all; it also comes with a self-locking throttle that prevents accidental start-ups. DEWALT has also backed this unit with a three-year limited warranty, so you have nothing to worry about in case something goes wrong or if there are any defects. In our list, it’s a must-have if you want the best right-angle die grinder. However, this die grinder does get very noisy, which might put off some users.

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NEIKO PRO 30115B 5” Extended Straight Air Die Grinder

The NEIKO PRO 30115B 5″ Extended Straight Air Die Grinder performs exceptionally, and we have little to complain about. Boasting an RPM of 20,000, this unit is exceptional for all sorts of tasks, and in our testing, we found it particularly suitable for grinding. Another noteworthy feature is the long neck which allows you to work in hard-to-reach places. When we used it, we also noticed that noise output was kept to a minimum, and it doesn’t vibrate excessively, so you can effectively use it for tasks that require a lot of precision. On the downside, it does use a lot of air which might not be desirable for certain customers.

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Die Grinders Ultimate Buying Guide

Die grinders come with numerous features, and through our years of experience, we know first-hand that some features are more essential than others. We focused a lot on these features during our review, and you should too when you purchase your units.

Collet Size

The collet size of your grinder completely depends on what tasks you would like to perform. If you’re going to be doing small tasks such as polishing or maybe a small project, you don’t need a large size. Generally, most grinders come with a ¼ collet size, as this size allows you to use your grinder for various applications. However, if you’re going to be working on a construction site or an industry, a ¼ collet size can be hectic.

Type Of Power

Similar to most power tools die grinders can be powered in numerous ways. With die grinders, you’ll either have to go with a pneumatic die grinder or an electric one. Generally, electric grinders are more practical and easier to use. Since batteries power them, you don’t have to bother about messy cords, and you’ll have ample reach as well, but they are on the costlier side. On the other hand, pneumatic grinders are more affordable, making them fantastic choices if you’re shopping under a budget.

Pneumatic ones can just be as powerful as electric ones, but on the downside, they require air compressors. They are both good options, and it comes down to what you require. Weigh the pros and cons before purchasing your unit.

Motor Power

This is another important factor. The more powerful the motor is, the better the performance will be. This feature is crucial as it controls the speed of the grinding wheel. For most tasks, a die grinder with 0.25 horsepower will be good enough. However, if you’re going to be working on heavier tasks, you should amp up your horsepower. For electric units, you should go for a unit with a power rating between 18-20 volts.

Speed Control

For the best results, always go for a die grinder with variable speed settings. This offers you a lot of flexibility to work on small and big tasks. When you’re grinding on materials such as plastic tubing or wood boards, opt for a lower speed. Many people use grinders at their highest speed, but you should restrict that only for harder surfaces like metal. An rpm of 20,000 is recommended if you want the best performance while keeping vibrations to a minimum.

Straight Head Or Right Angle

Whether you want to purchase a straight head or right-angled grinder, it all depends on your preference. However, right-angled units are more popular due to their ease of use and ability to reach narrow spots. Additionally, you can use a grinding wheel to easily mount a right-angled die grinder.

CFM and PSI Ratings

If you’re going to purchase a cordless or corded-electric die grinder, then you shouldn’t worry about this aspect. On the other hand, if you’re going to opt for a pneumatic die grinder, make sure that your air compressor can supply enough cubic feet per minute (CFM) at the ideal pounds per square inch (PSI). The power and speed of your die grinder decide the amount of air that is pushed through. If your air compressor can operate at the minimum pressure and volume, you’re good to go.

Warranty

As with virtually any product, a die grinder with a warranty is always preferable over one that doesn’t have a warranty. Having a warranty offers you some coverage in case anything goes wrong with your unit. Most die grinders come with a one-year warranty, but some brands offer to die grinders with three-year and even five-year warranties. Most brands offer a warranty with their products, so it shouldn’t be hard to find a die grinder with a warranty. A warranty shows how much the brand trusts their product.

Price

Ultimately, it may all come down to your budget. Like we’ve mentioned before, die grinders come in different types and with numerous features. The more features it has, the pricier it would be. However, that doesn’t mean you should waste your money on a unit with features that you don’t even need. If you need a die grinder for light tasks, you can easily find good quality products under $50. Purchase a unit with the most features under your budget.

Final Verdict

This brings us to the end of our list of the best die grinders on the market. They are all fantastic units, and we included them on our list due to their efficiency, power, and value for money. Whichever one you choose, you wouldn’t be disappointed. It all comes down to what you need from your die grinder. All the above-mentioned units have their advantages and disadvantages, but if we had to choose the ultimate winner, it would be the DEWALT 20V MAX due to its versatility, efficiency, power, and durability. It’s certainly on a league of its own. On the other hand, if the design is vital for you, then you should go for the JET JAT-401, 1/4″ Pneumatic Die Grinder (505401). Unlike other units, it has an eye-catching design, is portable and durable as well.

If you’re shopping under a budget, the Ingersoll Rand 1/4″ Air Die Grinder 3107G is an excellent choice. It’s very well-built and affordable and performs exceptionally well. Despite the low price tag, it performs much better than products twice its price. Do your research before you choose your unit so that you don’t end up wasting your money. Additionally, make sure that you focus on the features mentioned in our buying guide. Die grinders are affordable and powerful tools; no matter what you use them for, they’ll make your task easier and quicker.