Crimping tools for use with FCC68 modular connectors which are used on computers & American telephones. Simply place the plug with the cable in the tool & squeeze the grips together thus causing the plug to bite into the cable. The handles are spring loaded for automatic opening. Wire can be cut with blades built into the handle. All made from toughened plastic. Overall length 190mm. The following types are available Plastic Crimp 4P4 C This model is used on 4 position plugs with 4 contacts. Plastic Crimp 6P4 C This model is used on 6 position plugs with 4 contacts. Plastic Crimp 6P4 C This model is used on 6 position plugs with 6 contacts.