Onyx Die Grinders with ergo composite handle reduces fatigue and vibration Includes 204 - Composite Body 1 4 90 Angle Die Grinder Rear Exhaust - 20 000 RPM and 202 - Composite Body 1 4 Medium Die Grinder Rear Exhaust - 22 000 RPM Rib textured handle provides a firm grip Composite handle reduces vibration Lever throttle for feathering control Compact and lightweight Rear exhaust Built-in regulator