[TR] tap and die question

[Greg Gelhar]

First, a 1/8 NPT equals 27 threads to the inch.
A 3/8-24 of course makes 24 threads to the inch, they are not compatible.

Second, while the 3/8-24 tap cuts straight (parallel) threads, the pipe tap
cuts tapered, self sealing threads.

Each has its own purpose, they are not the same.

Greg Gelhar
1973 TR6
1980 TR8
Osseo, MN         .



> Subject: [TR] tap and die question
>
> What?  While looking at my TR3's master cylinders, I sought to clean out
the
> fixture threads.  It looks like the 3/8-24 thread is almost identical to
1/8
> NPT?  Is this right or have I mixed up my tap and die set again?
>
> Thanks, Paul  60 TR3