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Old 06-12-2023, 12:33 AM
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M&J M&J is offline
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Location: So. Cal
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Drilling for .1260" hole?

In my usual routine I drill .1250" (Those 1/8" drill bits vary from .1247" to .1249") then ream with a .1260" to fit pin stock. On some tasks this becomes tedious so I was debating using a 3.20mm instead. This way I do the hole in one rather than 2 steps. Provided that drill bit is sized accurately.

Thoughts? Advice?

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Old 06-12-2023, 07:30 AM
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Ray Rogers Ray Rogers is offline
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Join Date: Jun 2002
Location: Wauconda, WA
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The hole might turn out to be a little larger than 1.260 but the only way to be certain is to try it. There's always a little wobble. I think your idea is sound, you just might have to use a slightly smaller metric drill. Drill a test hole in the same material you plan to use and see what you get . . .


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Old 06-12-2023, 03:11 PM
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M&J M&J is offline
Join Date: Dec 2004
Location: So. Cal
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I was being lazy. Achieving a good fit comes with taking the proper steps so while some of the build aspects don't require utmost spec's I'm better off working on my fitting techniques for the consistency and quality.

There is a reason why I've been pleased with the lock-up on my folders and that is because I've used locator pins to align the body for consistent assembly and disassembly. I'm realizing that after all this time why some of the production folders have such good consistency is because their process maintain high spec. Granted I don't implement those big $ CNC so for my level of fitment being as precise as possible has meaning in the results.

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a, advice, bee, build, cnc, drill, knives, locator, lock, material, pins, wobble

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