RJ45 Pass-Through Connector Crimper (RJ CRIMP T304)

The RJ45 Pass-Through Connector Crimper, article number RJ CRIMP T304, is a hand tool for terminating network cables with RJ45 pass-through connectors. It is listed under Tools & Hardware and Tools & Testers, which makes it a fit for anyone building or maintaining a cabled network.
What it is for
RJ45 connectors are the standard plugs used at the ends of Ethernet cables. A pass-through connector has an open back, so the cable passes fully through the plug before crimping. Once the wires are arranged and trimmed, the crimper presses the plug onto the cable to lock the conductors and the outer sheath in place.
Key features
- Designed specifically for RJ45 pass-through connectors
- Hand-operated crimping action for terminating Ethernet cable ends
- Supplied as a Tools & Hardware item in the Tools & Testers category
- Suitable for installers who work with network cable on a regular basis
Typical uses
The crimper is used when you need to make custom network patch leads, repair a damaged cable end, or terminate new runs in an office, home or light commercial installation. Installers may also use it on site where pre-made leads are not practical.
Using it well
Strip the cable jacket to the length recommended for your connector, arrange the wires in the correct pin order, trim them square, and then insert the cable fully into the pass-through plug before crimping. Check that every wire reaches the front of the connector and that the jacket is gripped by the plug. Test the finished lead with a cable tester before putting it into service.
Who should use it
This tool suits electricians, network installers, IT technicians and keen DIY users who terminate their own cabling. It is a practical addition to a toolkit for any job that involves Ethernet cable.
Care tips
Keep the jaws clean and free of debris, store the tool in a dry place, and inspect it regularly for wear. A worn crimper may give unreliable connections, so replace it when it no longer grips and presses cleanly.







