Suitable scope: Teardown for blew 27mm screw Model: Sl-301 Name: 1/2" impact wrench Drive size: 1/2" Rotation speed: 7000 rpm Max. Torque: 230 ft-ib Tool length: 243 mm Net weight: 4.9 ibs Average air consumption: 4 cfm Pressure: 90 psi Air inlet: 1/4" npt