Description Ratchet head is engraved with Nm and lb-in scales on the barrel of the wrench. The micrometer type sleeve allows accurate preset torque values to be set. When torque is reached the wrench produces an audible click and a slight release of tension. Range: 10-80Nm/88.5-708lb-in. Overall length 280mm. Calibration certificate included. Supplied in blow mould storage case. Display packed.