Product Details Very low magnetic signature (Relative Permeability, (µr) limit for the Norbar Non-Magnetic Torque Wrench = 1.15) Durable, reliable and accurate mechanism Micrometer scale for simple and error free setting (on dual scale wrenches, the micrometer increment applies to the N·m scale) Quick and light adjustment: adjustment over the entire scale can quickly be achieved and with minimal effort in approximately ten complete turns Comfortable, durable handle constructed using two materials; a base material for strength overlaid with a soft feel grip for comfort and slip resistance The handle material and lens resist chemicals in common usage in the automotive, aviation and industrial environments Clicking system triggers a tactile and audible signal All tools feature a lock to prevent accidental adjustment of set torque Push-through ratchet allows clockwise and counter-clockwise operations Handle centre or calibration force point marked on handle Accuracy to ±3% meets the requirements of ISO 6789-1:2017 Supplied with a Declaration of Conformance Made in the UK