Draper 34964 Torque Wrench with a reversible ratchet head, Nm and lb-ft engraved on the barrel of the wrench with a micrometer type sleeve allowing accurate preset torque values to be quickly and accurately set. When torque is reached the wrench produces an audible click and a release of tension, marked range 65Nm to 450Nm / 51.6-291 lb-ft. The overall length of this 34964 Torque Wrench is 840mm and a calibration certificate is supplied with the torque wrench