Velleman BNC Crimper Not Closing Fully—Is There a Way to Adjust Handle Tension?

The discussion addresses an issue with a low-cost Velleman BNC crimper whose handles close fully but the jaws do not crimp properly. Suggested troubleshooting includes inspecting for worn or bent parts such as pins or handles, potentially replacing pins, straightening bent handles, and adjusting the ratchet mechanism located near the upper grip to increase handle tension. Modifications like filing flat surfaces to increase pressure or removing plastic handle covers to allow closer handle closure were also mentioned, though filing was discouraged by the original poster. For hobbyist use, low-cost tools may suffice with careful monitoring, but professional or mission-critical applications require higher quality crimpers. Ultimately, the user purchased a different inexpensive crimper from eBay that performs satisfactorily despite similar weight and price. Key components discussed include the ratchet adjuster cam, jaw plates, pins, and handle grips.
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