Channellock End Nippers (End Cutters) are used by insulators when installing insulation with pins/hangers. When the insulation is pushed over the pin a washer is applied onto the pin to hold the insulation in place. The excess part of the pin is then cut off using these Channellock End Cutters so the pin is flush with the insulation. These types of cutters are also known as flush cut end nippers.