Bessey KliKlamp Quick Release Ratchet F Clamp - Kli 300/80

The Bessey KliKlamp lever clamp combines lightweight magnesium arms with high-strength cold-drawn ...

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B&QB&Q - X4 Kliklamp Quick Release Ratchet F Clamps Light And Strong Kli 300/80
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Product Information

Full details

The Bessey KliKlamp (Kli 300/80) is an ideal tool for woodworkers, hobbyists, and assembly professionals who need a lightweight, high-speed solution for repetitive clamping tasks. Its primary benefit is the VIBRAFIX ratchet mechanism, which allows for rapid, one-handed operation that stays locked under pressure, though its lightweight design means it is better suited for light to medium-duty assembly rather than heavy-duty structural steel fabrication.

All features

Model Part NumberKli 300/80
BrandBessey

Extended Product Information

FAQs

Can I use the KliKlamp for heavy welding projects?

No, this clamp is designed for assembly and woodworking; excessive heat and spatter from welding will damage the plastic and magnesium components.

How do I release the pressure?

Press the quick-release lever located at the bottom of the ratchet handle assembly to disengage the lock.

Is the clamping pressure adjustable?

The pressure is controlled by how many 'clicks' of the ratchet you engage; it is not a micro-adjustable screw system.

Can it be used on round pipes?

Yes, the crossed v-grooves on the fixed arm are specifically designed to stabilize round or angular workpieces.

What is the material composition?

The arms are made of lightweight magnesium, the handle is fibreglass-reinforced polyamide, and the rail is cold-drawn steel.

Troubleshooting

Clamp slips after being tightened

Clean the steel rail and the internal ratchet teeth with a dry brush or compressed air to remove debris.

Handle is difficult to squeeze

Ensure the rail is clean and that the clamping arm is not at a severe angle to the workpiece, which causes binding.

Pros and Cons

Pros

  • Extremely lightweight compared to traditional cast-iron clamps
  • Rapid one-handed clamping action increases assembly speed
  • Vibration-resistant ratchet lock prevents slippage
  • Ergonomic design minimizes hand strain during high-volume tasks
  • Versatile jaw profile handles non-flat materials effectively

Cons

  • Not intended for heavy-duty metalworking or high-force crushing applications
  • The plastic-based handle components may wear faster than all-metal designs
  • Limited throat depth compared to large industrial C-clamps

Setup, Compatibility & Care

To use the KliKlamp, simply slide the movable jaw against the workpiece and squeeze the ratchet handle to apply pressure. To release, press the small lever at the base of the handle to disengage the ratchet teeth.

Care Instructions:

  • Keep the serrated steel rail clean of excessive sawdust or glue, as debris can interfere with the ratchet mechanism.
  • Do not use extensions or "cheater bars" on the handle, as this can damage the internal locking components.
  • Periodically wipe down the rail with a dry cloth; do not apply heavy grease, which may attract dust.

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