Reversible ratchet head. The in - lb and Nm scale is 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 release of tension. Marked range: 30 - 210Nm/22.1 - 154.9 lb - ft. Clockwise right - hand thread torque application only. Supplied in blow mould storage case. Supplied with calibration certificate