Fitted with rocking-dog hammer mechanism with hardened anvil and cage. Features variable air/torque control and reversible action. Polished aluminium housing. Features & Benefits:Fastening Torque: 520lb.ft(707Nm).Breakaway Torque: 540lb.ft(734Nm).Suitable for heavy garage and tyre shop use.Rocking-dog hammer mechanism with hardened anvil and cage.Features variable air/torque control and reversible action.Polished aluminium housing.Model No. SA4 Specifications: Model No SA4 Air Consumption: 7cfm Brand: Sealey Breakaway Torque: 540lb.ft/(734Nm) Drive: 3/4"Sq Fastening Torque: 520lb.ft(707Nm) Free Speed: 4500rpm Inlet Size: 1/4"BSP Nett Weight: 4.5kg Noise Power/Pressure: 107/96dB(A) Operating Pressure: 90psi Vibration/Uncertainty: 4.89/0.98m/s²