Designed to minimize torque spike on hard joint applications or where tool weight or application access is a concern Provides increased power under load with the 9-blade double-chamber motor and patented double-blade pulse mechanism Includes 1/4" Hex quick-change chuck Recommended Air Pressure: 85 psi NOTE: Torque ranges reflect residual B joint torque values Air Consumption - ft3/min: 10.5 Air Hose Size - in: 1/4 Air Inlet Thread N.P.T. - in: 1/4 Free Speed - rpm: 7,500 Noise Level - dB(A): 77 Overall Length (approx) - in: 9.0 Overall Length (approx) - mm: 232 Torque Range - ft lbs: 13 ~ 20.2 Torque Range - Nm: 18 ~ 28 Weight less Socket - kg: 0.8 Weight less Socket - lb: 1.9