Storm Force® pneumatic drill, with integral composite body that reduces weight, sound level, vibration level and the cold effect on the tool. Manufactured with high-tech gear and bearing system and high-quality materials. Chuck size: 3.8 Speed: 1800 rpm Air pressure: 6.2 bars (90 psi) Average air consumption: 113 Lt/min (4 cfm) Minimum hose size: 10 mm (3.8) inlet: 1/4 BSPPWeight: 920 g