Designed to minimize torque spike on hard joint applications or where tool weight or application process is a concern Provides increased power under load with the 9-blade double-chamber motor and patented double-blade pulse mechanism Recommended Air Pressure: 85 psi NOTE: Torque ranges reflect residual B joint torque values Air Consumption - ft3/min: 33.6 Air Hose Size - in: 1/2 Air Inlet Thread N.P.T. - in: 3/8 Free Speed - rpm: 3,500 Noise Level - dB(A): 85 Overall Length (approx) - in: 9.8 Overall Length (approx) - mm: 250 Square Drive - in: 3/4 Torque Range - ft lbs: 198.5 ~ 257.4 Torque Range - Nm: 270 ~ 350 Weight less Socket - kg: 4.6 Weight less Socket - lb: 10.1