Chicago Pneumatic CP 7711 is a 1/4" pneumatic butterfly wrench. Main features and advantages of the model: 15% smaller than other butterfly impact wrenches, compact - 140mm in length and easy to handle. Lightweight - only 0.53kg. Powerful - 110Nm in reverse. Aluminum housing. Power adjustment at the back of the device: 3-position. Butterfly direction switch (forward/reverse). Built-in, rotating, 180-degree air inlet. Ideal for repair work on engines, oil pans, ignitions, excellent for working on motorcycles or car seats. Intended for workshop applications. Handle: Butterfly Size: 1/4" Working torque (forward): 9-80 Nm Maximum torque (reverse): 110 Nm Rotational speed: 15000 rpm Number of impacts per minute: 10500 Weight: 0.53 kg Power-to-weight ratio: 220 Nm/kg Length: 140 mm Distance from side to center: 40 mm Average air consumption: 0.7 l/s Actual air consumption: 2.9 l/s Air connection: 1/4" Min. internal hose diameter: 10 mm (3/8") Noise level: 92 dB(A) Sound power: 103 dB(A) Vibration level alpha (ISO-28927-2): 4 m/s2 Vibration level K (ISO-28927-2): 1 m/s2 Socket type: Friction Ring Clutch type: Rocking Dog