Square Drive:1/2"(12.7mm) Bolt Capacity:5/8"(16mm) Net Weight:4.96lbs(2.25kgs) Length:7-1/8"(180mm) Avg.Air cons.:3.2cfm(901/min) Air Inlet:1/4" Hose Size:3/8"(9.5mm) Air Pressure:90psi(6.3kg/cm2) Max. Torque:236ft-lbs(320N-M) Free Speed:6000r.p.m.