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Drill bit to hole size question....
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Rod Maker
Posted 3/2/2018 05:33 (#6614389 - in reply to #6614379)
Subject: RE: Drill bit to hole size question....



Westport, IN		I agree. I've always used 1/32 oversized bit when using bolts. I wouldn't even try to get a 1/4 bolt in a 1/4 drill hole.

Also a two flute bit, especially on thin metal will make a oblong hole. It can be minimized with good clamping.

Was your old bits some kind of custom bits? Maybe take some pictures.

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