Small Taper Thread Tap

[682bear]

I don't believe I've ever seen one of these...



I can barely read the script on it, but the best I can tell, it says "1/16-36 taper thread"...

Is that just a small pipe tap?

What would it be used for?

-Bear

 

[mmcmdl]

Is that just a small pipe tap?

What would it be used for?

Small pipes ! JK , Is the tap itself tapered or just marked a taper tap ? Maybe they are referring it as a starter tap ? 1/16th pipe tap has 27TPI , maybe a special size ?

 

[GrifterGuru]

@mmcmdl

Unless my eyes are at fault, that tap does indeed look to be tapered top to bottom of the thread, with a tapered lead like a Taper (2nd) tap would have..

 

[682bear]

It is definitely tapered... but with 36 tpi...

IDK... it may be a special size, like the 31/64-18 tap that I found in the same box...

-Bear

 

[GrifterGuru]

Is it a tap for use on a small bore oil line on a classic/vintage/veteran vehicle pressure gauge perhaps or something to do with A/C?

Only taper threads I have ever seen that size are nominally on pipes or fasteners for gauges or A/C...........

HOLY COW!!! Just spotted this one online! F*** me sidways that is expensive!!!!

https://www.raptorsupplies.co.uk/pd/north-american/41800

 

[mmcmdl]

Didn't see where the above said 36TPI . I see 27 tpi in the link .

 

[ChazzC]

Is it a tap for use on a small bore oil line on a classic/vintage/veteran vehicle pressure gauge perhaps or something to do with A/C?

Only taper threads I have ever seen that size are nominally on pipes or fasteners for gauges or A/C...........

HOLY COW!!! Just spotted this one online! F*** me sidways that is expensive!!!!

https://www.raptorsupplies.co.uk/pd/north-american/41800

On the plus side since it’s carbide you can plan on going back for more when you snap it off in the part.

 

[GrifterGuru]

Didn't see where the above said 36TPI . I see 27 tpi in the link .

I was just taking a quick look. Even at 1/16 27 that is expensive!

 

[Jake M]

I don't believe I've ever seen one of these...

Me neither.

I can barely read the script on it, but the best I can tell, it says "1/16-36 taper thread"...

Is that just a small pipe tap?

What would it be used for?

-Bear

Speculating, and given the long taper....

I wonder if it's a "model making" special thread. They use a lot of threads that are much finer than "normal" ones, for better engagement over shorter distance. (Thinner work pieces). 32 and 40 are ones I've heard to be common.

1/16 is a valid pipe thread size in most if not all flavors, including tapered. Very uncommon in "the real world", but model makers use it. I wonder if you have a way to compare the taper. NPT threads are all tapered by 3/4 per foot, which is 1/16 per inch.

 

[682bear]

I'll sell mine for half that... and ship for free!



-Bear