This Norbar Pro Torque Wrench has the following specifications: Drive: 3/8in Square. Range: 5-25Nm (44-220 lbf.in). Scale Increments: 0.2Nm (2 lbfin). Ratchet Type: Reversible. Length: 221mm. Weight: 0.26kg. The Norbar Professional Torque Wrench is factory calibrated to 3% and our new mechanism ensures the accuracy is retained for longer. A large scale window and long scale length provide great visibility and accurate setting. The secure push/pull locking mechanism is quick and intuitive to use and prevents accidental adjustment. Fitted with an ergonomically designed handle (high proportion of soft-feel, high grip material). The handle and lens resist all chemicals in common automotive, industrial and aviation use. Supplied with a Calibration Certificate, which meets the requirements of ISO 6789-2:2017. Norbar A01 B0020