1、SAVE TIME AND EFFORT: These professional wire shrinking pliers help shorten the working hours of electricians, mechanics and construction workers 2、NON SLIP HANDLE: Ergonomic handle with labor saving ratchet gear. Non slip nylon handle with lever principle is designed to ensure shrinkage effect 3、FAST AND EFFICIENT: The casing crimp is designed with a ratchet type labor saving coupling mechanism that can be controlled by the pressure strength of the wheel control handle. The operation is simpler and faster 4、FLEXIBLE AND ADJUSTABLE: The self adjusting crimping pliers can automatically adjust the diameter suitable for crimping according to the requirements of the terminals, easy to operate 5、FATIGUE RESISTANCE MATERIAL: Ferrule crimping plier is made of nylon and copper alloy material and has good toughness, fatigue, heat and corrosion resistance