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Old 02-12-2004, 10:34 AM
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CAPtain232
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Default RE: what size drill bit for 1/4 20 tap?
OR if you are tapping wood, and you are going to go buy a bit, USE A NUMBER 8 INSTEAD OF 7....I have found that going down one size when tapping wood works VERY WELL....A #7 gives you the proper contact percentage for metal.
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