Powerful, robust single-hammer mechanism delivering 271 N.m.- Comfortable, ergonomic "soft" handle also insulates from cold.- Protective bumpers give the tool great durability.- Progressive trigger for better speed control.- Friction-ring socket retainer, safe and fast.- Also available in 3/8": NJ.A1700F2.- Breakaway torque 271 N.m.- Working torque 244 N.m.- Strokes per minute 1700 cpm.- No-load speed 7200 rpm.- Conductor square 1/2".- Working pressure 6,2 bar.- Average air consumption 143 l/min.- Average air consumption 5 cfm.- Tool connection 1/4".- Hose diameter min. 10 mm - 3/8" - Vibration 29.96 m/s²/a - Vibration 14.35 m/s²/K - Sound pressure 98 dB(A) - Noise level 109 dB(A).