Heavy Duty High Speed Cutter. This rugged high speed cutter has an energy-efficient 1/2hp motor, and is ideal for cutting sheet metal, fiberglass, bolts, muffler clamps and hangers, and exhaust pipes. The rear exhaust directs the air away from the work. Square handle design for a positive grip. 3/8" shaft accepts 3" cut-off wheels. (Be sure cut-off wheels are rated above 20,000 rpm). Protective wheel guard is included. Maximum free speed: 20,000 rpm. Average air consumption: 5 cfm @ 90 psi. Length: 7 3/4". Weight: 1 5/8 lb. 1 year limited warranty.