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Roger Shoaf Roger Shoaf is offline
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Default How can I automatically tap 500 holes in 5/16-18 thread size using a hand drill or drill press?


"Vaughn Simon" wrote in message
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wrote in message
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I've got blisters on my hands from taping 20 holes manually and I have
hundreds left to go!


Forget taps and use the appropriate Rivnut.


Riv-nuts are great for putting threads into thin sections but if I
understand the OP's project correctly, he needs to have threads in the end
so there will be nothing for the riv-nut to grab on to.

--

Roger Shoaf

About the time I had mastered getting the toothpaste back in the tube, then
they come up with this striped stuff.