For use with torque wrenches that do not have an in-built angular gauge. It enables the reading of the number of degrees of “after tightening” when tightening on certain applications where the angle needs to be measured (stretch bolts etc.). A static read off point, fixing magnet and a pair of angle scales make it possible to take a reading in most situations.Product Specification Drive Square: 1/2" Disc Diameter (mm) 80 EAN 5020385032729 Graduation 0-360° Height 66.5mm Length 420mm Weight 0.34 Kg