 tap size, npt 1/8" |
 Jan 11, 2005 - 3:53 PM
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 Enthusiast  Joined Sep 6, '04 From oakdale Mn Currently Offline Reputation: 0 (0%)  |
i can't find the right drill bit size for the 1/8" npt anywhere. i checked the interent and found some charts and every single chart the i found has got either an R or a C for some reason. what the heck is up with that??? does anyone know the right size drill bit to use??
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Jan 14, 2005 - 2:17 PM
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Enthusiast Joined Aug 31, '02 From KC Currently Offline Reputation: 0 (0%) |
My tap set calls for an 11/32 drill bit for 1/8-27 pipe tap, I'd go with 5/16 and try it, some bits can wobble out the hole while drilling and you can always go larger if you need to, do a test hole in some scrap material, also remember pipe threads are tapered, so they get tighter as you screw them in, so you have some leeway as to how far you run the tap in.
also double-check your fittings, as there is a 1/8-28 bsp british/metric pipe thread, same drill size . This post has been edited by 97GTinKC: Jan 14, 2005 - 2:18 PM |
Posts in this topic
rjbibeau tap size Jan 11, 2005 - 3:53 PM
rjbibeau bump it up Jan 12, 2005 - 1:57 PM wind since i work on a manufacturing floor and re-work ... Jan 12, 2005 - 2:41 PM rjbibeau ahh good info man i appreciate it. i gotta go buy ... Jan 12, 2005 - 2:45 PM rjbibeau here's my flanges custom made by mua Jan 12, 2005 - 2:58 PM rjbibeau what do you guys think of em? Jan 12, 2005 - 6:30 PM presure2 id say nice try..but a little on the crude side.. Jan 12, 2005 - 6:57 PM rjbibeau man i did that with an angle grinder give me some ... Jan 12, 2005 - 11:14 PM rjbibeau ya i know of the bsp thread. i think we have 1/8... Jan 14, 2005 - 3:51 PM
rjbibeau i just tapped a 1/8" npt hole and the threads... Jan 23, 2005 - 5:16 PM |
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