B2842 Use for drilling and screwdriving. Two speed trigger (slow speed when pushed halfway). Directional lever accessible from both sides for left/right handed use. 13mm (1/2) chuck and detachable side handle included. Planetary gears for longer life and smoother running. Ergonomic comfortable grip. Chuck size: 1/2 (13mm). Free speed: 800rpm. Recommended air pressure: 6.2bar (90psi). Air consumption: 4cfm* (113ltr/min). Air inlet thread: 1/4 NPT. Spindle thread: 3/8 - 24. Minimum air hose size (ID): 3/8 (10mm). Noise level: 86dBA. Sound power level: 93dBA. Vibration level #: 0.4m/s2. Overall length: 218mm. Per en iso 15744:2002. #Per en 28927-5. *Based on a 15 second cycle per minute average use.