Unique pinless hammer provides for stability. Distinctive clutch design generates maximum power. Variable speed teasing throttle. Built-in regulator. Incredible power-to-weight ratio. Cushioned grip dead handle. Side-mounted bumper guards. Square Drive (in.) 1 Bolt Capacity (in.) 1-3/4 Anvil Retainer Type Ring Max Torque (ft./lbs.) 1,700 Free Speed (RPM) 3,700 Air Pressure (PSI) 90 Air Consumption (CFM) 66 Air Inlet (NPT/in.) 1/2 Air Hose (ID/in.) 1/2 Vibration Value (m/s2) 8.6 Overall Length (in.) 18-1/8 Ship Weight Each (lbs.) 34 Carton Pack 1