| Power source | Speed (rpm) | Price | |
| 1. Dewalt | Battery (20V) 500 MWO (max. watt out) |
25k | $169.99 |
| 2. Kaopu | Battery (18V) 1,200 Watts |
11k | $146.92 |
| 3. Makita | Corded Electric 1.2 Hp (Horse power) |
28K | $277 |
| 4. Ingersoll | Pneumatic 0.3 Hp |
28K | $74.99 |
| 5. Chicago | Pneumatic 0.3Hp |
22.5K | $74.99 |
| 6. Dremel | Battery (12V) | 35K | $139.99 |
Die grinders are versatile tools that are essential in many workshops and garages. They can be used for cutting, grinding, polishing, and sanding a variety of materials, including metal, wood, and plastics. If you're in the market for a die grinder, here are six ones that have received good reviews or have sold well.
Things To Consider When Choosing A Die Grinder
Power Source. Die grinders come in two types of power sources: electric and pneumatic. Electric grinders are powered by electricity and require an outlet to operate. There is a cordless electric grinder which is powered by a rechargeable battery, making it ideal for use in areas without access to electricity. Pneumatic grinders, on the other hand, are powered by compressed air and require an air compressor to operate. Pneumatic grinders are generally more powerful and durable, but they require additional equipment and can be noisy.
Speed. Die grinders come with various speed options, ranging from 5,000 RPM to over 30,000 RPM. The higher the RPM, the faster the tool rotates, which can make it more effective at removing material. However, higher speeds can also increase the risk of accidents and reduce the lifespan of the tool. It's important to choose a die grinder with a speed that matches the task at hand.
Size. Die grinders come in a range of sizes, from small and portable to larger and more powerful. The size of the grinder you choose will depend on the tasks you will be performing. Smaller grinders are better for precision work, while larger grinders are better for heavy-duty tasks.
Accessories. The accessories that come with a die grinder can greatly impact its versatility. Look for grinders that come with a range of grinding wheels, sanding discs, and other accessories that allow you to tackle a variety of tasks.
Ergonomics. Finally, it's important to choose a die grinder that is comfortable to use. Look for models with ergonomic handles and lightweight designs that reduce strain on your hands and arms. Additionally, look for models with low vibration to reduce fatigue and improve accuracy.
6 Highly Evaluated or Best-Selling Die Grinder of 2023
1. DEWALT 20V MAX* Cordless Die Grinder
Pros:
- Versatile tool for cutting, grinding, and corrosion removal in hard-to-reach areas.
- Cordless design allows for easy and quick use.
- Sturdy and powerful enough for most jobs.
- Accepts smaller collets for fine work.
- LED lights are helpful.
Cons:
- Awkward safety lock needs a redesign.
The DEWALT 20V cordless die grinder is a versatile and powerful tool that is designed for a wide range of grinding, sanding, and shaping applications. This cordless tool is equipped with a 20V MAX battery that provides long-lasting power and runtime, allowing you to work for extended periods without the need for frequent recharging.
The tool boasts a horsepower rating of 0.5, giving it the necessary power to tackle a variety of grinding tasks with ease. Its variable speed control allows you to adjust the speed of the tool from 8,000 to 25,000 RPM, providing greater control over the tool and making it suitable for a wide range of applications, from heavy-duty grinding to delicate sanding and polishing.
One of the key features of the DEWALT 20V die grinder is its ergonomic design, which ensures comfortable handling and reduces operator fatigue during prolonged use. The tool also features a quick-change collet system that allows for easy and fast accessory changes, further enhancing its versatility and convenience.
The die grinder is built to withstand tough working conditions and features a metal gear housing and a dual-bearing system that helps to reduce vibration and increase the tool's lifespan.
2. Kaopu Brushless 18V Lithium Cordless Die Grinder
Kaopu Brushless 18V Lithium Cordless Die Grinder
Pros:
- All-copper brushless motor.
- The Tesla-same battery with ten electric cores provides long-lasting endurance.
- The extended output shaft design allows for a stable grip with both hands, making it suitable for high-intensity grinding.
- Industrial-grade design for heavy-duty use.
Cons:
- The die grinder is a bit heavy and bulky.
The brushless die grinder features a powerful 1,200W all-copper brushless motor, six-speed adjustable settings, large capacity battery, and enhanced safety and durability. It can be used for various tasks, including grinding, carving, drilling, and polishing. The six-speed adjustable setting provides flexibility to meet different operational needs. The Tesla-same battery has ten electric cores that provide long-lasting endurance, and its strong battery life is designed to last for up to 5,000 charging cycles, equivalent to three years of use.
The cordless die grinder comes in three versions, the short-shaft chuck model, the long-shaft chuck model, and the long-shaft nut model. The long shaft design allows for a stable grip with both hands.
The tool comes with a three-dimensional circulation cooling design that effectively dissipates heat and prevents the machine from overheating, even after prolonged use. This feature helps to increase the machine's lifespan.
3. Makita GD0800C Corded Die Grinders
Pros:
- Well-balanced and feels solid in hand.
- Can handle a variety of accessories without problems.
- Variable speed is useful for larger diameter accessories like wire wheels and brushes.
- Two-stage collet system for secure and easy accessory changes.
Cons:
- A bit heavy and bulky.
- On/off switch is a bit tight to push.
The Makita GD0800C corded electric die grinder is a high-performance tool that is designed for heavy-duty grinding, sanding, and polishing applications. This powerful die grinder is equipped with a 6.6-amp motor that delivers a maximum speed of 28,000 RPM, making it one of the fastest and most efficient die grinders on the market.
One of the key features of the Makita GD0800C is its variable speed control, which allows you to adjust the speed of the tool according to the specific task at hand. The tool features an electronic speed control system that maintains a constant speed under load, ensuring consistent performance and results.
Another notable feature of the Makita GD0800C is its collet system, which allows for easy and fast accessory changes. The tool is compatible with a wide range of accessories, including carbide burrs, grinding stones, and sanding drums, making it a versatile tool that can handle a variety of applications.
4. Ingersoll Rand 307BK Air Die Grinder Kit
Pros:
- Compact size and high performance.
- Reasonably priced.
- Can compete with more expensive models in terms of performance.
- Suitable for porting heads.
- Works well with a 60g air compressor pumping 90psi.
Cons:
- Speed adjustment screw only has high or low settings, no in-between options.
- Difficult to remove bottom hex fitting due to lack of a proper grip on the handle.
The Ingersoll Rand 307BK air die grinder kit comes with a range of useful accessories, including 10 abrasive stones, two wrenches, and a 6mm collet, all packed neatly into a plastic case. With a maximum speed of 28,000 RPM and 0.3 horsepower, this die grinder is powerful enough for a variety of tasks, such as smoothing edges, deburring, polishing, porting, and weld grinding. It has a slim profile and a straight grinding head that allows for easy access to tight spaces where angle die grinders cannot reach. The tool can exert up to 90 PSI, providing greater control over detailed work.
5. Chicago Pneumatic CP875 Air Die Grinder
Pros:
- Powerful and smooth.
- Easy to maneuver in tight spaces and complex workpieces due to the small size.
- Comes with two collets to securely fasten imported burrs and bits.
- The chuck wrench design is genius and makes tightening the chuck easy.
- The built-in regulator allows for speed adjustments and is effective.
Cons:
- The tool consumes between 20 and 34 SCFM, so it cannot be run continuously for a long period.
- The control of the built-in regulator is touchy.
The Chicago Pneumatic CP875 Air Die Grinder Tool is a versatile and durable tool designed for various grinding and cutting applications. With its compact size and lightweight design, it is easy to maneuver and use in tight spaces, making it an excellent tool for automotive work, metal fabrication, and woodworking.
This air die grinder tool features a powerful 0.3-horsepower motor that delivers an impressive speed of up to 22,500 RPM, making it perfect for fast material removal. The tool is also equipped with a rear exhaust that helps to keep the work surface clean and free of debris.
The CP875 Die Grinder is constructed from high-quality materials, ensuring durability and longevity. The aluminum housing provides a lightweight and corrosion-resistant design, while the ergonomic grip ensures comfort and control during prolonged use.
One of the standout features of this tool is its low noise and vibration levels, making it a pleasant tool to use for extended periods without causing fatigue. Additionally, the tool comes with a built-in air regulator that allows for easy speed control.
6. Dremel 8220-2/28 12-Volt Max Cordless Rotary Tool Kit
Pros:
- Features EZ Twist nose cap for quick accessory changes.
- Ideal for typical tasks like cutting holes, sharpening blades, slotting bolts, sanding or polishing parts.
- It is pleasant to use and operates smoothly after vibration issue is resolved.
- Adding foam to saddles reduces vibration, making the tool quieter and smoother.
Cons:
- The tool has a vibration issue from 50% power and up.
The Dremel 8220-2/28 12-Volt Max Cordless die grinder is a versatile and powerful tool that comes with two batteries and 28 accessories to help you tackle a variety of tasks. This cordless die grinder features a 12V Max Lithium-Ion battery that delivers consistent power and can be recharged quickly. It also has a variable speed setting that allows you to adjust the RPMs from 5,000 to 33,000, providing you with optimal control over your grinding and cutting projects.
The slim and ergonomic design of this die grinder makes it easy to handle, and it weighs only 1.6 pounds, making it ideal for extended use. It also features an EZ Twist nose cap that makes it easy to change accessories without requiring a separate wrench. The 28 included accessories, including grinding stones, sanding bands, and cutting wheels, allow you to get started right out of the box and work on a wide range of projects.
One of the biggest advantages of this die grinder is its cordless design, which provides you with the freedom to move around without the need for an outlet. However, this also means that the battery life may not last as long as a corded model, and you may need to recharge it during extended use. Additionally, some users have reported that the motor can get hot during use, but this is a common issue with many die grinders.