1/2 Inch Square Angle Wrench

Wrench, angular clamping disc with a 1/2 '' square for torque wrench.

It consists in saying that if we turn the nut by one turn (360 °), it amounts to taking a step on the screw. If we know the pitch of the screw (in mm) then we know how much the screw extends.
So if you do a 90 ° angular tightening , you know that the screw extends by a quarter of the screw pitch. If the pitch of the screw is 1 mm, then you know that the screw has lengthened by 0.25 mm.

Original OEM comparison numbers are for identification purposes only, they are not original OEM tools.