REFLECTOR: Taps and drill bits

Sat Sep 8 22:46:28 CDT 2007

1/8 NPT = R
1/4 NPT = 7/16
3/8 NPT = 37/64

R = 0.3390
21/64 = 0.3281

Joe

----- Original Message ----- 
From: <gattenby at tulsaconnect.com>
To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
Sent: Saturday, September 08, 2007 10:31 PM
Subject: REFLECTOR: Taps and drill bits


>
> I'm not where I can look it up...
>
> I know that a 1/8 inch NPT uses  an 21/64 drill bit.
> What size drill bit do I need for
> a 1/4 inch NPT?
> a 3/8 inch NPT?
>
> I'm doing sight gauges and sump tank this weekend.
>
> Noel
> _______________________________________________
> To change your email address, visit 
> http://www.tvbf.org/mailman/listinfo/reflector
>
> Visit the gallery!  www.tvbf.org/gallery
> user:pw = tvbf:jamaicangoose
> Check new archives: www.tvbf.org/pipermail
> Check old archives: http://www.tvbf.org/archives/velocity/maillist.html
>