# 3/4 NPT tap

**URL:** <https://forums.speedlife.net/t/3-4-npt-tap/153791>\
**Category:** Classifieds\
**Created:** [April 22, 2010, 8:42am UTC](https://forums.speedlife.net/t/3-4-npt-tap/153791 "2010-04-22T08:42:32Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Spam16v](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/spam16v/32/5287_2.png) [@Spam16v](https://forums.speedlife.net/u/Spam16v)\
**Post date:** [April 22, 2010, 8:42am UTC](https://forums.speedlife.net/t/3-4-npt-tap/153791/1 "2010-04-22T08:42:32Z")

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need to tap one hole in a cast iron block, hole is present, just needs threads.

thanks  
-Zac

[spam16v@gmail.com](mailto:spam16v@gmail.com)  
(716)445-9345 cell, text or voicemail is fine.

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**Author:** ![Jagermeister](https://avatars.discourse-cdn.com/v4/letter/j/f19dbf/32.png) [@Jagermeister](https://forums.speedlife.net/u/Jagermeister)\
**Post date:** [April 22, 2010, 9:06am UTC](https://forums.speedlife.net/t/3-4-npt-tap/153791/2 "2010-04-22T09:06:25Z")

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That’s a big one! Unfortunately, I sold my NPT Tap/Die Set.

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**Author:** ![newman](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/newman/32/7569_2.png) [@newman](https://forums.speedlife.net/u/newman)\
**Post date:** [April 22, 2010, 9:11am UTC](https://forums.speedlife.net/t/3-4-npt-tap/153791/3 "2010-04-22T09:11:30Z")

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How long do you need it for?

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**Author:** ![NYstanger](https://avatars.discourse-cdn.com/v4/letter/n/6a8cbe/32.png) [@NYstanger](https://forums.speedlife.net/u/NYstanger)\
**Post date:** [April 22, 2010, 11:53am UTC](https://forums.speedlife.net/t/3-4-npt-tap/153791/4 "2010-04-22T11:53:03Z")

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Sometimes ACE hardware just sells their taps in plastic ziplock little baggies. When I had to tap the hole in my oil pan for a oil return, I bought it, used it, cleaned it, returned it. lol

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**Author:** ![Copper280z](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/copper280z/32/5464_2.png) [@Copper280z](https://forums.speedlife.net/u/Copper280z)\
**Post date:** [April 22, 2010, 11:54am UTC](https://forums.speedlife.net/t/3-4-npt-tap/153791/5 "2010-04-22T11:54:28Z")

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Harbor freight has them, I have their smaller npt set and it works pretty well.

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**Author:** ![Spam16v](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/spam16v/32/5287_2.png) [@Spam16v](https://forums.speedlife.net/u/Spam16v)\
**Post date:** [April 22, 2010, 5:03pm UTC](https://forums.speedlife.net/t/3-4-npt-tap/153791/6 "2010-04-22T17:03:15Z")

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> [@newman](#):
>
> How long do you need it for?

one day @ work, as soon as i got it, 24 hours? block is down in the southtowns.