The clamping pressure acts only on the grooved sliding joint which has multiple adjustment positions; hence no slipping and no wear on the screw. Designed to prevent fingers being trapped. Self-tightening on pipes and nuts (except size 125). With notched serrated gripping jaws, induction hardened.
Pliers chrome-plated, plastic coated handles.
DIN ISO 8976
Chrome vanadium steel, drop forged.