Astro 222 ONYX 2-Piece Die Grinder Kit

Overview

Running on shop air rather than a battery, Astro's model 222 grinder weighs 1.87 pounds. Pneumatic power puts it in garage and hobby shop territory rather than cordless convenience.

Pneumatic tools like this trade battery weight and charge time for a dependence on a shop compressor, worth noting if the buyer does not already have air line set up. At under 2 pounds it reads as a small die grinder rather than a heavy angle grinder.

• Model 222
• Pneumatic power source
• Weighs 1.87 pounds
• Astro brand

Who it's for

A garage or shop already running air tools is the natural home for this grinder, useful for detail work, deburring or small material removal. Without a compressor already in place, it is not a workable choice.

Pros and cons

Performance notes

Pneumatic power delivers grinding speed as long as the compressor keeps pace with air demand, and the light 1.87 pound body favors control in tight spots over sustained heavy grinding. No stated RPM or free speed limits how precisely its output can be judged from the listing alone.

Specifications

Closest rivals on specs

Gunpla 90 Degree Air Die Grinder with Sanding Discs 1/4 Inch

Angle Air Die Grinder Kit with Sanding Discs 1/4 Inch

AIRCAT 6280 Angle Die Grinder 0.75 HP