Networking
Klein Tools Ratcheting Pass‑Thru Data Cable Crimper (RJ11/RJ12/RJ45)
Product description
This ratcheting modular crimper is built for voice and data cable work, combining a crimper, wire stripper and cutter in a single handheld tool. It supports 4-, 6‑ and 8‑position modular connectors, including RJ11/RJ12 standards and RJ45 pass‑thru connectors, and is suitable for CAT3, CAT5e and CAT6/6A cables.
Pass‑thru connector compatibility means conductors are pushed through the front of the plug and then trimmed flush with the connector face, which speeds preparation and reduces guesswork. The tool’s full‑cycle ratchet secures complete connector terminations, and wiring diagrams printed on the tool help align conductors to the correct T568A/T568B patterns.
Construction combines hardened metal working jaws with a compact, non‑slip comfort grip to reduce hand fatigue and improve control. The integrated blade trims jacket and conductors cleanly, and the sheath‑cutter gives quick jacket removal without extra tools. It’s designed for use with Klein Pass‑Thru connectors sold in packs of 10, 50 or 200.
Made and supported by a long-established family company that has produced professional hand tools since the 19th century, this crimper reflects an emphasis on durable materials and practical design intended for frequent field use.
Pros
- Consistent, full‑cycle ratcheting crimps
- All‑in‑one crimper, stripper and cutter
- Pass‑thru trimming for fast, clean terminations
Cons
- Handles feel small for large hands
- No lock to keep jaws closed in storage
- Higher cost than basic knockoffs
VerdictA solid professional crimper that combines stripping, cutting and ratcheting termination into one durable tool. It reliably produces clean crimps and flush cuts with pass‑thru RJ45 connectors, reducing rework and saving time. The ratchet ensures full-cycle terminations and the built-in wiring diagrams help prevent mistakes. Best for technicians who value consistent results; larger-handed users may
Reviews
-
Rafael Gaston 5/5
Ideal for camera installs
High quality and thoughtfully designed. Simple to operate and very reliable for security camera wiring.
-
T 5/5
Should’ve upgraded earlier
Reluctant at first because of cost, but it saves time and avoids crushed connectors. Wire patterns on both sides are useful. A well-made, time‑saving tool.
-
Kirk 5/5
A benchmark for crimping tools
Works with Cat6 UTP and F/UTP I’ve used. Reliable mechanism and clean results. Only downside: no way to lock it closed, so be careful when grabbing it from storage.
-
Erdal Rasid 5/5
Does the job every time
Performs as expected. Lightweight and consistent — every cable crimped successfully on the first try.
-
Felipe Diaz 5/5
Compacta y de gran calidad
Muy buena calidad, compacta y práctica. Por ahora la he usado con terminales habituales y funciona al 100 %. La recomiendo.
-
rak 4/5
Solid build, occasional repeat crimps
Well made and cuts jackets easily. Crimps are usually good but a pair of conductors sometimes need a second squeeze to free them completely, which is why I docked a star. The printed wiring diagrams are handy; overall I’m pleased.
-
Nicola 5/5
Non perdete tempo, è perfetta
Avevo una crimpatrice economica che falliva spesso e l’ho restituita. Con questa, al primo tentativo il lavoro è venuto perfetto. Consiglio anche gli spinotti della stessa marca: risultati nettamente migliori.
-
Benjamin Butters 5/5
Precision tool for pros
The ratcheting action makes terminations effortless and consistent. Stripping and cutting are clean, and the tool handles standard modular cables reliably. Well engineered and durable — exactly what a field technician needs.
-
Matt 5/5
Major step up from cheap crimpers
Far better than budget models I’d tried. Smooth ratchet, good leverage and uniform crimps without overexertion. Strips and trims neatly — finished cables look professional. Worth replacing the disposable tools.
-
Christopher Schultz 5/5
Sturdy, dependable — just a couple tiny quibbles
Worked perfectly right away; I made two Cat6 cables without errors. The build feels solid and the ratchet is confident without being stiff. The jacket cutter is effective, though you should check each conductor after trimming. If you have big hands it seems a bit compact, but it still functions well and is easy to use for either hand.
-
Josep Subirats 5/5
Calidad notable, saltos en rendimiento con pass‑thru
Tenía una crimpadora de siempre pero con conectores pass‑thru la diferencia es abismal: se evitan errores y las conexiones mejoran mucho. Es robusta, pesa lo justo y la cuchilla corta perfecto. Cambiar solo los conectores me dio un gran aumento de velocidad en las pruebas.
-
HK 5/5
Solide — Qualité — Efficace
Après des essais avec un modèle bas de gamme peu fiable, j’ai été très satisfait de celui‑ci. Le mécanisme à cliquet assure des sertissages complets, la coupe et le dénudage sont précis, et les schémas de câblage sont très pratiques. Un peu plus coûteux mais rentable.
Comments
No comments yet.
Sign in or sign up to comment.