Ratchet head is engraved with Nm and lb - in scales on the barrel of the wrench. The micrometre type sleeve allows accurate preset torque values to be set. When torque is reached the wrench produces an audible click and a release of tension. Marked range: 30 - 210Nm/22.1 - 154.9lb - ft. Overall length 465mm. Clockwise right-hand thread torque application only. Supplied in blow mould storage case.