Includes #204 - Composite Body 1/4" 90° Angle Die Grinder Rear Exhaust - 20,000rpm, #201- Composite Body 1/4" Mini Die Grinder with Safety Lever - 25,000rpm, and 2181- 8pc. Astro Pneumatic 219. Onyx Die Grinders with ergo composite handle reduces fatigue and vibration.