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Old Feb 24, 2008 | 01:30 PM
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pyro install
I have the drill and tap style pyro and was wondering what size drill bit do I use for this. I already have the 1/8" tap but need to know the drill bit size, Thanks
 
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Old Feb 24, 2008 | 01:33 PM
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I beleive its a type R. IIRC.
 
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Old Feb 24, 2008 | 01:38 PM
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typically says it on the tap. A "R" sounds familiar.
 
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Old Feb 24, 2008 | 01:39 PM
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8.6106mm, .339",TYPE - R, 1/8"-27 NPT
 
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Old Feb 24, 2008 | 02:02 PM
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5/16 is a little small 21/64 will work very well for the tap whole.
 
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Old Feb 24, 2008 | 02:07 PM
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Thanks guys
 
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Old Feb 24, 2008 | 03:26 PM
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Originally Posted by IDPisan
5/16 is a little small 21/64 will work very well for the tap whole.
yep, 21/64 is what you want
 
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Old Feb 24, 2008 | 04:47 PM
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And another thing that I found is to cut about 2'' to 2 1/2'' off the end of the bit so you can get a straight shot at the manifold.
 
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