Astro Pneumatic 500Q Onyx Drill Review
Verdict & Overview
Astro Pneumatic consistently innovates in the autobody space, and the 500Q Onyx is their flagship compact drill. Designed for tight spaces under dashboards and inside wheel wells, it packs a punch in a tiny package.
Performance Test
The 2,100 RPM free speed is blistering. It drills pilot holes instantly. The 'Quiet' technology works—we measured it at 84dB, noticeably quieter than the generic drills that scream at 95dB+. The keyless chuck gripped bits well during forward drilling but occasionally loosened on hard reverse torque.
Build & Ergonomics
It fits in the palm of your hand. The handle exhaust is a brilliant feature that blows air (and dust) away from your face and the workpiece. The molded grip is comfortable for all-day use.
Scenario: You're working under a dashboard installing a bracket. There's no room for a battery drill, and standard air drills are too long. The stubby profile of the 500Q slides right in.
Pros
- + Ultra-compact for tight spaces
- + Keyless chuck speeds up work
- + Quiet handle exhaust
- + Ergonomic molded grip
Cons
- - Keyless chucks can loosen on reverse
- - High speed only
Compare With Other Air Drills
Frequently Asked Questions
Q: How long is the tool?
A: It is approx 6 inches from back to chuck tip.
Q: Does it need oil?
A: Yes, daily oiling is required.