For pipes to (inches) 3 1/2 & quot For nuts up to SW (mm) 95 setting positions 27 Length (mm) 400 DIN ISO 5743 Pipe and pipe wrench in a tool self-locking on pipes and nuts: no slipping on the work piece, energy-saving work quickly, precisely setting directly on the workpiece no unintentional shifting no slipping the joint fine adjustment optimum leverage used in many situations as a wrench. Gripping surfaces with special hardened teeth, teeth hardness approximately 61 HRC: low wear and secure gripping. Chromium-vanadium electric steel, forged, oil-hardened pliers gray atramentized, head polished, handles covered with plastic