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Knipex Cobra XL Water Pump Pliers - 16"

Knipex Cobra XL Water Pump Pliers - 16"

Knipex Cobra XL Pipe Wrench and Water Pump Pliers are designed to handle extreme physical work on ...

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OnBuy.comKnipex Kx8701-16 Cobra Adjustable Gripping Pliers 8701-16
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Product Information

Full details

The Knipex Cobra XL Water Pump Pliers (16") are designed for professionals tackling large plumbing and mechanical tasks, offering a self-locking, high-capacity grip on pipes and nuts with minimal effort. While incredibly effective on large components up to 3 inches, their size may be less practical for very confined spaces or small-scale adjustments. These pliers feature a robust chrome vanadium electric steel construction with induction-hardened teeth for durability, a 27-fold fine adjustment for precise fitting, and comfortable non-slip handles.

All features

Model Part Number8701-16
BrandKnipex

Extended Product Information

FAQs

What is the maximum pipe diameter this tool can grip?

The Knipex Cobra XL can grip pipes with a diameter of up to 3 inches (90 mm).

What is the primary advantage of the self-locking grip?

The self-locking grip prevents the pliers from slipping once a secure hold is established, reducing user fatigue and increasing work efficiency, especially in overhead or awkward positions.

How do I adjust the pliers to fit different sizes?

Use the 27-fold fine adjustment slider. Open the pliers by pressing the button on the pivot, position the jaws around the component, and release the button. Fine-tune the grip using the adjustment slider for a precise fit.

What material are the Knipex Cobra XL pliers made from?

They are made from high-quality, forged, and oil-hardened chrome vanadium electric steel.

Are these pliers suitable for small plumbing jobs?

While versatile, their 16-inch size and large capacity make them most effective for medium to large pipes and fittings. For very small diameters, a smaller model might be more practical.

How do I maintain the pliers for long-term use?

Keep the jaws clean, lubricate the pivot joint periodically with light machine oil, and store them in a dry place. Inspect the teeth regularly for wear.

What is the wrench opening capacity for nuts?

The pliers can accommodate nuts with a wrench opening of up to 95 mm.

Troubleshooting

Pliers won't grip securely.

Ensure the adjustment slider is properly set for the pipe or nut size and that the pivot button is fully released to engage the self-locking mechanism. Clean the gripping teeth of any debris.

Adjustment mechanism is stiff.

Apply a small amount of light machine oil to the pivot joint and the adjustment slider. Work the mechanism back and forth to distribute the lubricant. Clean away any excess oil.

Handles feel slippery.

Ensure the plastic coating on the handles is clean and dry. Avoid using oily substances on the handles themselves. If the coating is damaged, consider replacement.

Pliers do not open or close smoothly.

Check the pivot area for dirt or debris. Clean thoroughly and apply lubricant as described in the care instructions. Ensure the adjustment slider is not obstructed.

Pros and Cons

Pros

  • Exceptional gripping power on large diameter pipes and nuts.
  • Self-locking mechanism significantly enhances work efficiency and safety.
  • Durable, high-quality materials ensure a long service life.
  • Ergonomic handles reduce user fatigue during extended use.
  • Precise adjustment allows for a secure fit on a wide range of sizes.

Cons

  • The 16-inch size can be cumbersome in very tight or confined spaces.
  • May be overkill for very small diameter pipes or nuts.
  • Requires a firm grip to engage the self-locking mechanism effectively.
  • Higher initial cost compared to basic pipe wrenches.

Setup, Compatibility & Care

Setup: The Knipex Cobra XL requires no assembly. To use, open the pliers by pressing the button on the pivot. Place the jaws around the pipe or nut, then slide the upper jaw to adjust the opening size. Once positioned, release the button to allow the self-locking mechanism to engage. Further fine-tuning can be done via the 27-position adjustment slider.

Compatibility: This tool is designed for gripping and turning round pipes (up to 3 inches / 90 mm) and hexagonal nuts (up to 95 mm wrench opening). It is compatible with standard plumbing and mechanical fittings within these size constraints.

Care: To maintain optimal performance and longevity:

  1. Cleaning: After each use, wipe the jaws and handles clean of debris, grease, and dirt with a dry or slightly damp cloth. Avoid using abrasive cleaners.
  2. Lubrication: Periodically, apply a light coat of machine oil to the pivot joint to ensure smooth operation and prevent rust. Wipe off excess oil.
  3. Inspection: Regularly inspect the gripping teeth for wear or damage. The induction-hardened teeth are very durable, but extreme misuse can cause damage.
  4. Storage: Store in a dry environment, preferably in a toolbox or on a tool rack, to protect from moisture and physical damage.

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