Heavy-duty aluminum gear cases. Strong, lightweight, glass reinforced nylon motor housings and handles. High efficiency fans. Long life brush system. All ball and roller bearings. Ball bearing mounted armature. High impact resistant tool rest. Helical cut alloy steel gears and shaft. Wheel Diam 2 in [Max]. Collet Size 1/4 in. Voltage 120.00 V. Voltage Type AC/DC. Frequency 60.0 Hz. Amps 11.00 A. Speed 14500 rpm. Length 21 1/2 in. Control Type On/Off. Applications Grinding. Handle Type Back Body Grip. Includes 1/4 in. Collet, 1/16 in. Open End Wrench, 1/2 in. Open End Wrench, 1 in. Open. End Wrench. Type Straight Die Grinder. Wt. 7 3/4 lb.