ONYX 2pc Die Grinder Kit with 1/4"   90 degree 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 degree 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