Proster Bleu, Pince seul 3-in-1 RJ45 Crimp Tool for Cat5 and Cat6

For making or repairing Ethernet leads, the Proster RJ45 crimp tool brings cutting, stripping and crimping together in one hand tool. Its pass-through design is made for 8P8C connectors, while printed T-568A and T-568B sequence stickers help guide wire arrangement. A separate mini stripper is included for removing the cable’s outer covering.

Key points

This 3-in-1 tool handles the main steps of RJ45 connector preparation: cut the wires, strip the cable and crimp the connector. Combining these functions makes it a practical choice for network and telecommunications work where a cable needs to be assembled or repaired at the point of use. The sharp cutting blades are designed to trim wires cleanly, and the ergonomic grip supports controlled handling during stripping and crimping.

Compatibility covers 8P8C RJ45 connectors for Cat5, Cat5e, Cat6 and Cat6a, including pass-through and non-pass-through types, shielded and unshielded connectors, and non-all-metal Cat7 connectors. The T-568A and T-568B colour-sequence stickers offer a handy reference while arranging conductors, whether preparing a single replacement lead or working through several terminations. A locking button keeps the handles closed for compact storage in a toolbox.

Who it’s for

This tool suits DIY network installers, telecoms technicians and anyone who needs to terminate Ethernet cable rather than rely solely on ready-made leads. It is particularly useful when a cable must be cut to a chosen length or fitted with a new connector during a setup or repair. Compared with keeping separate cutting, stripping and crimping tools to hand, its combined functions bring those tasks into one tool, choose it when that all-in-one approach matches your cable work.

Practical tips

Strip enough of the outer jacket for the cable to reach the crimping stage cleanly, leaving too little stripped can prevent excess cable from being cut during crimping. The cut can be made diagonally to help guide the wires into the connector. Before crimping, check that the connector is seated properly in the tool and arrange the conductors using the T-568A or T-568B reference. Once crimped, open the handles fully before removing the connector to help prevent it catching in the tool.

Before you decide

What connector types does it support? It is designed for 8P8C RJ45 connectors and supports Cat5, Cat5e, Cat6 and Cat6a pass-through or non-pass-through connectors, in shielded or unshielded versions. It also supports non-all-metal Cat7 connectors.

Can it cut and strip cable as well as crimp? Yes. Cutting, stripping and crimping are combined in the main tool, and a mini wire stripper is included for removing the cable’s outer covering.

How does it help with wire order? T-568A and T-568B colour-sequence stickers provide a quick reference when arranging the conductors before crimping.

Buying verdict

For Ethernet cable preparation and connector repairs, this Proster tool offers a straightforward way to cut, strip and crimp with one compact hand tool. Its broad range of supported 8P8C connector types and on-tool wiring references make it a useful fit for practical network and telecommunications tasks.