Features Copper Material The tinned copper material has good electrical and thermal conductivity as well as low contact resistance. Quick operation: strip the sheath core and place the core inside the ferrule terminal without exposing it. Before crimping the terminal, the crimper must be adjusted according to the thickness of the wire core. Extensive use: these bits are widely used for workshops, automotive electricians, machinery, cars, trucks, motorcycles, etc. Firm Connection The flared design allows easier insertion, which can also avoid cable exposure and breakage for safe connection. 【1900 Pieces Set】There is a storage box and 1900 pieces wire ferrule in various specifications, meeting various work needs. Specification: Item Type: Wire End Cap Model No.: HX0100236 Material: Copper. Wire range: 0.5 mm², 0.75 mm², 1.00 mm², 1.5 mm², 2.5 mm². Package list: 1900x wire ferrule 1 x Storage Box Package List 1900 x Wire Ferrule 1 x Storage Box