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  1. 08-17-2008 12:06 PM #11
    RedHeartbeat
    RedHeartbeat is offline WTH JUST HAPPENED?
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    This is the tap drill chart I used Lance... NPT Tap Drill Sizes - Engineer's Handbook
    It seems that is the size you're supposed to use if you have a tapered pipe reamer. Works good with a hand drill too since most guys wollar a hole out as they drill, can't hold a drill straight and square ( me included )
    Last edited by RedHeartbeat; 08-17-2008 at 12:11 PM.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
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