Handheld crimpers are tools used to join two pieces of material together by deforming one or both of them. They are commonly used in electrical work to attach connectors to wires, ensuring a secure and reliable connection. These tools come in various sizes and designs, suitable for different types of connectors and wire gauges. Typically made of durable materials, handheld crimpers feature a pair of handles and a crimping die. Users apply pressure to the handles, which compresses the die and creates a tight fit. Handheld crimpers are essential for professionals in fields like electrical engineering and automotive repair.