Reversible ratchet head. The Nm and lb-in scales are engraved 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.