This ratchet-controlled Crimper reliably attaches butt connectors on insulated wire gauges sized 8 - 22. Firm, even pressure crimps connectors securely, without risk of cutting or damaging the wire, clamp or heat-shrink insulation. Four color-coded crimp zones, comfortable handles. Priced right, too. Ideal crimper for heat shrink terminals, automotive wire crimping, & general crimping of insulated terminals.