Crimping Tools Selection Guide - TEMCo Industrial- crimp pliers electrical connectors and fittings diagram chart ,Crimping Tool Selection Guide. Crimpers are tools used to make cold weld joints between two wires or a wire and aconnector, such as lugs. Ideally, the electrical and mechanical properties of the weld joint are as strong as the parent materials. Crimping tools are sized according to the wire gauges (using AWG - American Wire Gauge) they can accept.Wire Connectors - Product Type - IDEAL ElectricalWe created our first twist-on wire connector in 1924 and have sold billions since. Our complete line includes Twist-On Wire Connectors, Push-In Wire Connectors, Grounding Wire Connectors, DataCom Wire Connectors, among others. The IDEAL line of electrical wire connectors is built to provide safe, dependable solutions for every application.