Box Joint Water Pump Plier is a premium quality which has Safe live line working to 1000V with Curve Steel. The quality assured material and advanced techniques, which make them up to the standard in this highly challenging field.anti-rust protected - combination plier - black phosphate finish - hardened body - single color sleeve - c45 material - jaws and cutting edge are induction hardened and tempered - suitable for plumbing & Pipe Fittings and household applications. Combination Pliers for Multipurpose Use The combination pliers can be a valuable addition to your tool kit. Made from high quality sturdy steel, the jaws of the pliers can endure pressure easily. The cutting edge and jaws are tempered and induction hardened. The metal is resistant to rust and has a black phosphate finish. The handle has a yellow and black plastic cover which will provide you a good grip over the tool and help you work with precision.