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.