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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.

### Types of Crimping Tool

**Mechanical Crimping Tools** or [Plier Crimp Tools](https://uk.rs-online.com/web/c/hand-tools/cable-connector-crimping-tools/crimp-tools/?applied-dimensions=4294824181) are the most common and are handheld and manually operated.

**Hydraulic Crimping Tools**: [Hydraulic Crimping Tools](https://uk.rs-online.com/web/c/hand-tools/cable-connector-crimping-tools/crimp-tools/?applied-dimensions=4290833548,4294869782) use hydraulic pressure to assist with crimping allowing them to be used on large cables and connectors.

**Pneumatic Crimping Tools:** Pneumatic crimping tools use compressed air to operate the crimping mechanism.

**Crimping Machines:** [Crimping Machines](https://uk.rs-online.com/web/c/hand-tools/cable-connector-crimping-tools/crimp-tools/?applied-dimensions=4290833440) are designed to automatically crimp large volumes of wires for production lines.

Some crimping tools are designed to crimp specific connector types such as [Ferrule Crimpers](https://uk.rs-online.com/web/c/hand-tools/cable-connector-crimping-tools/crimp-tools/?applied-dimensions=4290270206), [RJ45 Crimping Tools](https://uk.rs-online.com/web/c/hand-tools/cable-connector-crimping-tools/crimp-tools/?applied-dimensions=4293137066) and [BNC Crimp Tools](https://uk.rs-online.com/web/c/hand-tools/cable-connector-crimping-tools/crimp-tools/?applied-dimensions=4293323963). Other crimp tools use interchangeable dies or jaws to accommodate different connector types for added versatility. Crimping tools are used in a wide range of industries including electrical, automotive, aerospace and telecommunications.

Learn more in our [guide to crimp tools](https://uk.rs-online.com/web/content/discovery/ideas-and-advice/crimp-tools-guide)



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