Model 650 torque wrench specifications drive 34in square range 130 650nm 100 480lbf ft ratchet 75mm engagements per revolution 60 length 886mm weight 4 0kg the norbar professional torque wrench models 650 1500 are highly accurate up to a reading of 3 all come supplied with a traceable calibration certificate the wrenches are non length dependent an extension handle can be used to reduce operator effort handle supplied as standard with model 800 1000 and 1500 the w