'The Norbar Model 650 Professional Torque Wrench is an upgrade to the Model 550 wrench and has the same high quality and accuracy as the Model 60 - 330 Professional wrenches.Part number: 14037EAN Bar Code: NATO number: Accuracy: +/-3%Operates between:130.0 - 650.0 N??m100.0 - 480.0 lbf??ft Technical Specification Length: 886 mm Square Size: 3/4" Torque Radius: 744 mm Weight: 4.0 Kg Ratchet Teeth: 60 Ratchet Type: push-through Features Accuracy of +/-3% of reading. Traceable calibration certificate supplied. Non length dependent. Extension handle can be used to reduce operator effort (handle supplied as standard with Model 800, 1000 and 1500). Positive 'click' can be heard seen and felt. Low weight - Model 1000 just 5.8 kg. Long scale length in N??m and lbf??ft allows error free setting. Fine 60 tooth ratchet allows the wrench to be used in confined areas.'