This 3/8\" torque wrench is extremely accurate with a micrometer type sleeve that allows accurate preset torque values to be set The Draper 54627 is a ratchet torque wrench with a 3/8\" square drive. The Nm and lb-in scales are engraved on the barrel of the wrench and the micrometer type sleeve allows accurate preset torque values to be set. Features: 3/8\" square drive torque wrench with a 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 Calibration certificate included Clockwise right-hand thread torque application only Specification: Range: 10 - 80Nm/88.5 - 708lb - in Overall length: 280mm