Knife Making Video Detent Ball Information

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Detent ball information


Six minute knife making video created by Christopher Gillian, covering information for using 0.0625", 2mm (0.078") , and 0.093" detent balls.  Video includes demonstration how to locate the detent ball in the blade using a manual drill press, and how to set the ball to the desired height.  Also included is the detent ball graph to be used to determine the proper height, when setting the detent ball.


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  • 5
    detent balls

    Posted by Dale Miller on Oct 9th 2023

    For six bucks, this is a great value -- just for the table of liner and blade hole sizes as a function of detent diameter. Watch this video in conjunction with Gilliam's free YouTube video, where he talked about why a 2mm ball is better than a 1/16" for a flipper (more kinetic energy), and touches on the subject of "guillitine" closing. I'd certainly pay more for more information. While Christopher says a 1/16" ball should protrude .023" above the liner, what about the larger balls? He mentions (in the YouTube) four factors that affect drop shutting: • Strength of the lockbar • Size of detent ball • Height of detent ball • Whether or not the detent ball has a flat Tell us more about the flat on the detent ball! What are the tradeoffs between ceramic and stainless balls? Still, if you're trying to improve your skills, there's great information here and it's well worth the price! Thanks, Christopher!