The Knipex Alligator 10 in. Chrome Vanadium Steel Water Pump Pliers offer 9 adjustment positions for 30% more gripping capacity. This good access to the workpiece due to the slim size of the head and joint area. It is self-locking on pipes and nuts, no slipping on the workpiece, and low hand force is required. It is made with chrome vanadium electric steel, forged, multi-stage oil-hardened.