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Old 03-Dec-2004, 13:02
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Quote:
Originally posted by antonye
For example, you need to drill a 5.1mm hole for an M6 thread, but if you want to drill out an M6 thread you need to drill it out to 6.4mm. However, not many people have a 5.1mm drill bit, so a 5mm should be fine.

5.1mm for a M6 X 1.0 tap they jest
and 6.4mm is a bit over kill when a 6.1mm drill would be all that was needed if you wanted to use a 6mm nut and bolt in place of a stripped thread
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