Knipex Crimping Pliers - RJ11/12 RJ45

The Knipex 975110 is a professional Crimping Plier for Western Plugs, designed for cutting, and st...

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Product Information

Full details

This guide is for telecommunications technicians, IT professionals, and DIYers who need to create reliable network and telephone connections. The Knipex 975110 offers precise, professional crimping for Western plugs with integrated cutting and stripping functions, ensuring consistent, high-quality terminations. A potential caveat is its specialized nature, making it less suitable for general-purpose electrical work.

All features

Model Part Number975110
BrandKnipex

Extended Product Information

FAQs

What types of connectors does this tool crimp?

This Knipex crimping plier is designed for 6-pole (RJ 11/12) and 8-pole (RJ 45) Western plugs.

Can this tool be used for shielded network cables?

The tool is primarily designed for unshielded ribbon telephone cables and standard RJ45 connectors. While it will crimp an RJ45 connector onto a shielded cable, the shielding integrity might not be optimized without specific tooling for the shield termination.

What is the difference between RJ11 and RJ45 widths?

The tool accommodates RJ11/12 connectors with a width of 9.65mm (typically 4 or 6 conductors) and RJ45 connectors with a width of 11.68mm (typically 8 conductors).

How do I use the stripping knife for ribbon cables?

Insert the ribbon cable into the designated stripping slot (marked for 6mm or 12mm lengths). Squeeze the handles firmly to cut through the outer jacket and insulation. Gently pull the tool to remove the stripped section.

Is this tool suitable for electrical wiring (e.g., house wiring)?

No, this tool is specifically designed for telephone and low-voltage network connectors (RJ types). It is not intended for use with electrical wiring terminals or connectors used in household or industrial electrical systems.

What material is the tool made of?

The Knipex 975110 is made from special quality chrome vanadium electric steel, which is oil-hardened for durability and corrosion resistance.

How do I maintain the tool for optimal performance?

Keep the tool clean and dry. Periodically lubricate the pivot joint with light machine oil. Ensure blades are kept clean and free from debris. Avoid dropping or subjecting the tool to excessive force.

Troubleshooting

Crimped connector is loose or fails continuity test.

Ensure the correct plug type (RJ11/12 or RJ45) is being used. Verify the cable conductors are fully seated in the plug channels before crimping. Check that the cable is properly stripped and that no stray strands are interfering. Ensure the tool's crimping jaws are aligned and not damaged.

Stripping knife or cutter is not cutting cleanly.

Inspect the blade for nicks or dullness. Clean any debris from the blade area. If the blade is damaged or excessively dull, it may need professional servicing or replacement by Knipex if repairable.

Tool feels stiff or difficult to operate.

Clean the pivot area and apply a small amount of light machine oil. Work the handles back and forth to distribute the lubricant. Check for any foreign debris or damage to the pivot mechanism.

Integral lock mechanism is not releasing.

Ensure the crimping process is fully completed. The mechanism should release automatically after the full crimp cycle. If it remains stuck, check for obstructions or potential damage to the lock components.

Pros and Cons

Pros

  • Provides professional-grade, consistent crimp quality for telephone and network connectors.
  • Combines crimping, stripping, and cutting functions in one tool, reducing the need for multiple tools.
  • Durable construction from high-quality steel ensures a long service life.
  • Ergonomic handles improve user comfort and reduce fatigue.
  • Integral lock mechanism guarantees repeatable results.

Cons

  • Primarily designed for Western plugs (RJ 11/12, RJ 45) and may not be suitable for other connector types.
  • The long design might be cumbersome in very tight spaces.
  • Requires specific unshielded ribbon telephone cables for optimal performance in stripping functions.
  • Higher initial cost compared to basic crimping tools.

Setup, Compatibility & Care

Setup:

This tool requires no complex setup. It is ready for use directly out of the packaging. Ensure you are using the correct connector type (RJ 11/12 or RJ 45) and that the cable is prepared according to standard termination procedures.

Compatibility:

  • Connectors: Compatible with 6-pole (RJ 11/12) and 8-pole (RJ 45) Western plugs.
  • RJ 11/12 (6-pole) width: 9.65mm
  • RJ 45 (8-pole) width: 11.68mm
  • Cables: Primarily designed for unshielded ribbon telephone cables. The round cable stripper is suitable for common telecommunication and network cable jacket diameters.

Care:

  • Cleaning: Wipe the tool clean with a dry or slightly damp cloth after use. Avoid using solvents or harsh cleaning agents that could damage the handles or metal components.
  • Lubrication: Periodically lubricate the pivot point with a light machine oil to ensure smooth operation.
  • Storage: Store the pliers in a dry place to prevent corrosion. Keep the cutting edges and stripping blades clean and protected when not in use.

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