Die Grinder 6.4 Amps No Load RPM 13 000 to 34 000 Wheel Dia 2 In. Arbor Hole 1-11/16 In. Corded/Cordless Corded Collet Capacity 1/4 In. Handle Design Straight Bearings Double-Sealed Ball Bearings Switch Type Slide Features Variable Speed Electronic Speed Control 1/4 in Collet Aluminum Die-Cast Gear Housing Auto-Stop Carbon Brushes Tool Length 10 In. Tool Weight 3.6 lb. Speed Type Variable Voltage 120VAC