A crimping tool, crimp tool, crimper, wire crimper or cable crimper is a hand tool used to crimp connectors onto wires or cables to create a secure and reliable electrical connection. Crimping tools consist of a pair of handles that operate the tool when squeezed together and jaws or dies with dedicated crimping profiles to hold the connector in place. Some tools have a ratchet crimping mechanism to maintain consistent crimping pressure and ensure the connector is fully crimped before the handles are released.