The Norbar Model 650 Professional Torque Handle with a 22mm spigot is an upgrade to the Model 550 and has the same high quality and accuracy as the model 60 - 330 Professional Wrenches. The Positive \'click\' can be heard seen and felt, so you know you have reached the right setting and it has a long scale length in both Nm and lbf·ft, allowing error free setting. The wrench handle is non length dependent. With an accuracy of ±3% of reading. Supplied with a declaration of conformance to satisfy the requirements of ISO 6789:2017. Specification Accuracy: ±3%.Operates Between: 100.0-480.0 lbf·ft/130.0-650.0Nm.Length: 821mm.Torque Radius: 744mm.Weight: 3.6kg.