AMT tap?

I swear by my Beall wood threader and may be a tad above a lot of peoples paygrade… however, if all else fails, you may find this link of some help to match whatever dyes you have…

Sorry to sound condescending, but a picture of what you have might have made life easier for those trying to make yours easier… I just hate seeing threads with ”0” replies.

-- If your first cut is too short... Take the second cut from the longer end... LBD

Honestly I don’t have them in hand yet but here’s a couple shots from the auction:
Not sure on the size either

-- Matthew 13:53-58

As I mentioned, if all else fails the Beall site can give you an indication of what you could be up for using an educated guess.

If you are interested in multiple sized threads, I found that the Beall set was cheaper than the same “individual set” of your pictured threaders (new)... though you will need a trimmer/router… but the results are much better… I’ve used both.

-- If your first cut is too short... Take the second cut from the longer end... LBD

I have a set of these I got some years ago. (Woodcraft or Highland Hardware) The same company made both regular and blind taps.
They come in 1/2, 3/4, 1, 1/4 & 1 1/2 inch sizes.
These taps should still be available.

-- Barry, in Maryland

Is 6tpi pretty standard?

-- Matthew 13:53-58

Is 6tpi pretty standard?

- r33tc0w

They’re all 6TPI except for…. so the answer is a probably NOT.

-- If your first cut is too short... Take the second cut from the longer end... LBD

Is 6tpi pretty standard?

- r33tc0w

They re all 6TPI except for…. so the answer is a probably NOT.

- LittleBlackDuck

I believe the larger threads 1 1/4” and 1 1/2” are 4. However, I believe the tpi per diameter thread are standard across brands.

-- If your first cut is too short... Take the second cut from the longer end... LBD