Knipex Hand Crimp Tool - 97 51 12 SB

The Knipex hand crimp tool is designed for efficient cutting and stripping of CAT cables using hig...

Best current price£121.67from Blueperry agriculture (UK)

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Blueperry agriculture (UK)Knipex Crimping Pliers For Western Ta975112
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OnBuy.comKnipex Crimping Pliers For Western Plugs (200 Mm) 97 51 12 4003773043188
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eBayKnipex 97 51 12 Crimping Pliers for RJ10, RJ11/12 & RJ45 Western Plugs
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eBayKNIPEX 97 51 12 200 mm Telephone Plug Crimping Pliers
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Product Information

Full details

The Knipex 97 51 12 SB is a professional-grade crimping tool designed for technicians and networking specialists who require consistent, high-quality terminations for RJ-10, RJ-11, RJ-12, and RJ-45 Western plugs. Its primary benefit is the combination of parallel crimping action and a leverage-enhanced design that minimizes hand fatigue during repetitive installation tasks, though its specialized focus means it is strictly for ribbon and round network cable applications.

All features

Model Part Number97 51 12 SB
BrandKnipex

Extended Product Information

FAQs

Does this tool work with shielded RJ-45 connectors?

This tool is designed specifically for unshielded ribbon and round networking cables and standard Western plugs.

Can I replace the blades if they get dull?

While the blades are made from hardened steel for a long service life, they are designed to be part of the fixed assembly. Keep them clean to maintain sharpness.

What is the primary benefit of the parallel crimping feature?

Parallel crimping ensures the connector is pressed perfectly straight onto the wire, resulting in a more reliable contact compared to scissor-style crimpers.

Is this tool suitable for home DIY users?

Yes, although it is a professional-grade tool, its ergonomic features make it an excellent choice for anyone who wants high-quality, long-lasting networking connections.

How do I maintain the tool's ratchet mechanism?

Keep the tool clean and free of dust. You may occasionally apply a drop of light oil to the moving joints to keep the action smooth.

Troubleshooting

Connector pins are not fully depressed

Ensure the cable is pushed fully into the connector before inserting it into the tool and complete the full squeeze until the ratchet releases.

Tool handles will not open

The integral lock must complete its cycle. Pull the handle slightly or use the manual release trigger if provided to reset the ratchet mechanism.

Stripping blade is not cutting evenly

Check the blade for debris or wire fragments and ensure the cable is positioned correctly within the designated stripping slot.

Pros and Cons

Pros

  • Reduces operator fatigue during high-volume work
  • Consistent, professional-grade results every time
  • Includes built-in cutters and strippers for all-in-one cable prep
  • Sturdy chrome-vanadium steel construction
  • Easy to use with a wide range of common network connectors

Cons

  • Not suitable for heavy-duty power cables
  • Requires proper user calibration for specific cable types
  • Larger profile compared to basic modular crimpers

Setup, Compatibility & Care

To ensure peak performance, always verify the strip length for your specific connector type before crimping. The tool is compatible with RJ-10 (7.65 mm width), RJ-11/12 (9.65 mm width), and RJ-45 (11.68 mm width) plugs. Maintenance is straightforward: keep the crimping jaws free of debris and plastic scraps from previous terminations. Periodically wipe the blades with a light machine oil to prevent rust, as the tool is constructed from oil-hardened steel. Avoid using the tool to cut non-copper materials, such as steel wire or high-tensile zip ties, to prevent dulling the precision cutting blades.

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