MODEL IW-1700K-A Square Drive 1/2' Bok.Csqachy 5/8' Max Torque 6S0fi-lbs Free Speed 7500 r.p.m. Air Consumption 5.4 cfm Air Inlet 1/4" Air Hose 10mm Overall Length 190 mm Net Weight 2.4 kg Twin hammer design Iron front cover for extending tools life. Light weight for user friendly. Good tool for WorLlng efficiently Ideal of use on automotive service, body shop, farm etc.