Overview
PROS
CONS
SPECS
Type
Size
Speed
Voltage
Safety
Our Top Choice
Makita Cordless 1/4" Die Grinder
For over a century, Makita has been offering state-of-the-art power tools with superior performance and durability.
LED battery level indicator; comes with backup battery, ¼” inch collet, spanner wrench, and tool bag; its vents emit exhaust gases away from operator.
No variable speed.
Cordless
14 x 7 x 5 inches; 4.4 pounds
10,000 RPM
18 Volts
Slide switch with lock on
Best Value
Ingersoll-Rand Angle Air Die Grinder
For over 100 years, Ingersoll Rand has been manufacturing superior performance power, industrial, and vehicle service tools for professionals and DIYers alike.
Built to handle heavy-duty usage; it’s small and lightweight; it has a safety lock throttle to prevent accidental start up; front exhaust keeps things clean.
It releases a lot of water vapor from the compressor.
Air Angle
5.3 x 1.3 x 2.9 inches; 1 pound
21,000 RPM
Pneumatic
Safety-lock throttle lever
Bosch Cordless Die Grinder
Bosch is a world renowned manufacturer of power tools that allow you get creative on your wood and metalwork for both personal and commercial projects.
Ergonomic handle. Reduces fatigue. 22,000 RPM. Weighs under 4 pounds. Battery is protected from self-discharge and over heating. Compact and portable.
No variable speed options.
Cordless
13 x 3 x 3 inches; 3.8 pounds
22,000 RPM
18 Volts
Collet chuck enhances user safety
Milwaukee High-Speed Die Grinder
For over 85 years Milwaukee has been manufacturing high-quality and superior performance heavy-duty power tools that cater for individual and commercial use.
Has a ball and bearing system to reduce vibration; comes with a versatile chuck that accepts ¼ and 1/8-inch collets; includes a limited warranty that’s good for 5 years.
It’s a bit noisy.
Electric
4 x 2 x 16 inches; 4.7 pounds
21,000 RPM
120 Volts
Convenient on/off toggle switch
Astro Pneumatic Pencil Die Grinder
For over 30 years Astro Pneumatics has been a renowned supplier of large collections of superior quality automotive and power aftermarket tools.
It’s lightweight to reduce fatigue; has a 5-foot guarded-hose for minimum vibration; its on/off switch is conveniently and safely placed.
It doesn’t come with the wrench required to install bits.
Pencil
7.8 x 5.7 x 1.9 inches; 0.8 pound
56,000 RPM
Pneumatic
Lightweight for ease of use