2 In 1 Mini Die Grinder Combo | JETContains 1 each: 90° mini die grinder (402009) and 1 straight mini die grinder (402010)Ball bearing construction for maximum tool life and durabilityLever throttle for positive speed controlBuilt in regulatorFront exhaust402009: 90° mini die grinderCollet Size: 1/4"Free Speed: 25,000 RPMAvg Air Consumption: 4 CFMAir Inlet: 1/4"Sound Pressure (dBA): 86Vibration: 4.06m/sProduct Weight: 0.6 lbs (0.3 kg)402010: Straight Mini Die GrinderCollet Size: 1/4"Free Speed: 22,000 RPMAvg Air Consumption: 4 CFMAir Inlet: 1/4"Sound Pressure (dBA): 84Vibration: 4.25m/sProduct Weight: 1 lb (0.4 kg)