Ratchet head is engraved with Nm and lb – in scales on the barrel of the wrench with a micrometer type sleeve, allowing accurate preset torque values to be set. When torque is reached the wrench produces an Audible click and a release of tension. Marked range: 65 – 450Nm/48 – 332 lb – ft. Overall length 840mm. Calibration certificate included. Clockwise right – hand thread torque application only. Supplied in blow mould storage case.