Crimp tools are a varied collection of devices used to join materials or components by pressing them together and creating a seal or crimp. One of the most common uses of crimping tools is the attachment of connectors to the end of electrical cables... The purpose of the crimping tool is to form a secure connection that is properly sealed from any gas or moisture, preventing shortages or faulty electrical connections. It allows electricians to form a solderless connection between two wires, or to terminate a strand of wire.