The Norbar Professional Torque Wrench Models 650 1500 are highly accurate up to a reading of 3%. The wrenches are non- length dependent. An extension handle can be used to reduce operator effort (handle supplied as standard with Model 1000 and 1500). The wrenches are easy to use; a positive click can be heard, seen and felt, helping to prevent over torqueing. Have a long scale where the length is shown in Nm and lbf.ft. The fine 60 tooth ratchet allows the wrench to be used in confined areas. Supplied with a Calibration Certificate, which meets the requirements of ISO 6789-2:2017. Model 1500 Torque Wrench Specification Drive: 3/4in Square. Range: 500-1,500Nm (370-1,100 lbf.ft). Torque Radius: 1423mm. Ratchet Teeth: 60. Ratchet Type: Push-Through. Length: 1570mm. Length (inc. Ext. Handle): 2070mm. Weight: 6.7kg.