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What's an R bit?

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Old Jun 24, 2004 | 06:16 PM
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50ish
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From: Wadsworth, Ohio
What's an R bit?
I just bought a Vortec intake elbow. To accomodate one of the fittings it says to drill a hole in it with an "R" bit. What's an R bit?
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Old Jun 24, 2004 | 06:31 PM
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It's probably referring to a letter "R" drill. Which is by my chart .339. If you don't have letter drills then you may want to use a 11/32 (.344), only .005 difference.

-Mindgame
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Old Jun 24, 2004 | 06:35 PM
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50ish
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Thank you!!
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