Author Topic: FS/T: Large taps $10/tap + shipping  (Read 5421 times)

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Offline leg17

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Re: FS/T: Large taps
« Reply #15 on: October 19, 2016, 11:29:59 AM »
Check the OD and the Threads per inch.
Should  be pipe taps.

Offline Twilight Fenrir

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Re: FS/T: Large taps
« Reply #16 on: October 26, 2016, 09:51:55 AM »
Yes, confirmed, the ones on the left are all pipe taps. I used a scrap of 1-1/4" black iron pipe I had from a project a little while ago, and it's an exact match. I didn't realize the threads per inch were the same across pipe sizes, I thought they varried like bolts, but I guess. NPT should have given me that clue :P

Anywho, if anyone is interested, I'll do $10/tap +shipping. $15 for the long ones. Though I think I'll keep one of the 1-1/4" taps, as I like using that size pipe for welding projects...
« Last Edit: October 26, 2016, 09:53:48 AM by Twilight Fenrir »

Offline Chillylulu

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Re: FS/T: Large taps
« Reply #17 on: February 04, 2017, 02:28:05 AM »
Yes, confirmed, the ones on the left are all pipe taps. I used a scrap of 1-1/4" black iron pipe I had from a project a little while ago, and it's an exact match. I didn't realize the threads per inch were the same across pipe sizes, I thought they varried like bolts, but I guess. NPT should have given me that clue :P

Anywho, if anyone is interested, I'll do $10/tap +shipping. $15 for the long ones. Though I think I'll keep one of the 1-1/4" taps, as I like using that size pipe for welding projects...

1/2" & 3/4"   are 14 TPI
1", 1-1/4", 1-1/2", & 2" are 11-1/2 TPI
2-1/2"-10" are 8 TPI

On a threading machine you only need a couple of die heads - 1"-2" and 1/2 - 3/4"
For fire sprinklers you use 1"-2" 99.5% if the time.  Larger pipe is grooved. 

Chilly

Chilly