Check the listing for details. Astro Pneumatic 222 ONYX 2pc Die Grinder Kit. Condition: New. Listed at 120.28 USD. Astro Pneumatic 222 ONYX 2pc Die Grinder Kit with 1/4″ 90° Angle Die Grinder AND 1/4″ Medium Die Grinder 202 – Composite Body 1/4″ Medium Die Grinder – 22,000rpm – Rear Exhaust Rear exhaust air flow system directs air away from work surface Compact and lightweight Built-in regulator Safety lever 204 – Composite Body 1/4″ 90° Angle Die Grinder – 20,000RPM – Rear Exhaust Composite handle reduces vibration Rib textured handle provides a firm grip Lever throttle for feathering control Compact and lightweight Rear exhaust Built-in regulator Specifications 202 - Composite Body 1/4" Medium Die Grinder - 22,000rpm - Rear Exhaust Collet Size: 1/4" Free Speed: 20,000rpm Overall Length: 6-3/4" (171mm) Net Weight: 1.2lbs (.54kgs) Motor: 1/3hp Air Inlet Thread NPT: 1/4" Air Hose I.D. Size: 3/8" (10mm) Avg. Air Consumption: 3cfm Air Pressure: 90-120psi 204 - Composite Body 1/4" 90° Angle Die Grinder - 20,000RPM - Rear Exhaust Collet Size: 1/4 Free Speed: 20,000rpm Overall Length: 6-3/4 (171mm) Net Weight: 1.2lbs (.54kgs) Motor: 1/2HP Air Inlet Thread NPT: 1/4 Air Hose I.D. Size: 3/8 (10mm) Avg. Air Consumption: 3cfm Air Pressure: 90-120psi