Draper 3/4" Square Drive 65-450Nm or 48-332 lb-ft Ratchet Torque WrenchRatchet head is engraved with Nm and lb in scales on the barrel of the wrench with a micrometer type sleeve, allowing accurate preset torque values to be set. When torque is reached the wrench produces an audible click and a release of tension. Marked range: 65 450Nm 48 332 lb ft. Overall length 840mm. Calibration certificate included. Supplied in blow mould storage case.