About This Product Knipex Tools is the world's largest manufacturer of professional pliers since 1882. Knipex Pliers, Cutters, Insulated Tools and other products have been the tools of choice for Professional Tradesmen and end users who are serious about their hand tools and demand industrial quality. Knipex Tools are made from start to finish utilizing the highest quality materials. Based in Germany, Knipex Tools are German engineered to produce a tool unmatched in the industry in terms of features, comfort, design and performance. Adjustment at the touch of a button directly on the work-piece Fine adjustment for optimum adaptation to different size work-pieces and a comfortable gripping position Self-locking on pipes and nuts: no slipping off the work-piece and low hand-force required Gripping surfaces with special hardened teeth, teeth hardness (approx. 61 HRC): low wear and reliable gripping Box-joint design: high stability because of double guide Reliable catching of the hinge bolt: no unintentional shifting Pinch guard prevents operators' fingers being pinched 30 adjustment positions Chrome vanadium electric steel; forged, multi-stage oil-hardened