Tinned Copper Material The surface of the copper material is tinned, which can improve the anti-discoloration performance of copper, extend the anti-corrosion period, increase the solderability, and provide better electrical conductivity. Nylon insulation sleeve rigid nylon insulation sleeve, with ductility, beautiful shape after pressing, strong press. Quick Wiring Remove the outer sheath from the end of the wire, insert it into the insulated terminal and clamp it with crimping pliers. 50u thick gold-plated terminal, not easy to oxidize, lower impedance, stronger penetration Confidence of a good grip, as the locking system allows the pliers to be opened only after the tips have been crimped. The press is comfortable, you do not need a lot of force to curl the tips,Can be operated with one or two hands,ergonomic plastic handle,The screw secures the mold against falling out., Manufacturer: HVSYVVSRL