Pressmaster-KWB-4099-Crimp-Tool-Pressmaster-4300-3687-p-The-KWB-4099-from-Pressmaster-is-a-precision-ratchet-crimp-tool-designed-to-provide-consistent-&-reliable-crimp-connections-on-uninsulated-copper-tube-connectors-on-wires-ranging-from-4-to-10mm-sup 2-p-p-It-s-so-easy-to-use-just-open-the-tool-insert-a-terminal-in-the-correct-nest-&-close-the-tool-until-the-terminal-is-fastened-Insert-wire-into-terminal-&-close-tool-until-ratchet-release-To-release-the-ratchet-mecha