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 Specifications: Model: ALPHA-130 Air Consumption - ft3/min: 22.9 Air Hose Size - in: 3/8 Air Inlet Thread N.P.T. - in: 1/4 Free Speed - rpm: 3,400 Noise Level - dB(A): 84 Overall Length (approx) - in: 8.2 Overall Length (approx) - mm: 209 Square Drive - in: 1/2 Torque Range - ft lbs: 73 ~ 117.8 Torque Range - Nm: 100 ~ 160 Weight less Socket - kg: 2.6 Weight less Socket - lb: 5.8