B7444 Suitable for production and assembly applications. Twin hammer mechanism. 1/2 square drive. Three position dial style speed regulator. Forward/reverse selection. Ergonomic and comfortable handle grip. Fixed inlet and exhaust. Forward: position 1: 4000rpm, position 2: 5000rpm, position 3: 7000rpm. Reverse: position 1: 3000rpm, position 2: 5000rpm, position 3: 7000rpm. Collet size: 1/2 (13mm). Free speed: 7,000rpm. Maximum torque: 813Nm (600ft/lbs). Recommended air pressure: 6.2bar/90psi. Air consumption: 4cfm* (113ltr/min). Noise Level: 83dBA Sound Power: 90dBA Vibration: 6.8m/s2 Air inlet thread: 1/4 NPT. Minimum air hose size (ID): 10mm (3/8). Overall length: 183mm. *Based on a 15 second cycle per minute average use.