Features - Speed: 1600 RPM - Voltage: 110/60HZ - Sizes from 9/64'' to 25/64'' on both carbon steel and high speed steel drill bits - Sharpening wheel - 80grit / 60mm diameter - High Impact Plastic Housing - Rear Mounted On/Off Switch - Head Motor Working Capacity - Grinding Stone Wheel Material - Rubber Feet Are Slip Resistant - Sharpen Dull Carbon Steel Or High Speed Steel Drill Bits nto Like New Condition