TriStateTuners.com :: Home of Tristate Auto Enthusiast - Guide to Tap and Drill Sizes for Metric, Standard, and NPT

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TROLL

11-09-2008 01:55 AM

Guide to Tap and Drill Sizes for Metric, Standard, and NPT

Found this helpful so wanted to post it here as a reference...

http://www.newmantools.com/tapdrill.htm

Also Newman Tool's handy hint for metric sizes only:
Diameter of thread minus the pitch equals the tap drill size.
eg. M6 x 1
6 - 1 = 5mm drill size

DPancoast

06-12-2009 04:11 PM

good stuff man, it helped me fix some stuff on my block!

Chudsoncoupe

07-27-2012 10:56 PM

Anyone ever use a drill to tap, or do you always do it by hand?

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