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I think it's listed in this old PDF printout of some website I made a while back: http://home.comcast.net/~ajawam4/tapclear_print.pdf Pete Lilja wrote:

That's a standard size, I think, NSF. I I think 1/4-28 is NF. Mert

According to my "Machinery's Hdbk. 17 edition" for an external thread the major diameter is 0.4989 - 0.4924 and for an internal thread the dimensions are 0.461 - 0.470. John

That tends to be expensive tooling. Lowest cost, mount a cutter in the lathe toolpost, lock the spindle and wind the saddle backwards and forwards, or make an attachment for your lathe like this, see:

I'm planning to make a thread protector for a rifle barrel. My reference material doesn't list the drill bit size for a 1/2" x 28 TPI thread. Can anyone help? Pete

That was agonizing to watch!.... My god, bolt that thing to a bench!! broaching is easy, he makes it look dangerous. Just my 2c Paul

Those would be fine for taking a short nipple out of a fitting, but I don't think they would work well for *making* nipples. To do that, you'd need a longer item with a pipe-OD section to for the die

Cool stuff! Do you happen to have the english translation of the lang.txt file for hte gears program? Any instructions? I tried the newer beta (11-08-2012 and it didn't work but the 10-24-2012 version

Ah, well, the whole point of having a lathe is to make stuff yourself.......anybody can buy one, only the exceptional can make their own......

a?BSP die, cuts the thread and the taper at the same time, so it takes a bit of effort and the thread is a bit rough, but it works ! Regards? jb

Roy, I have a real cheapy mini?lathe that has the Headstock locked down with just 4 bolts! Slightly easier but a PITA none the less. So I am not arguing with you : ) . I also have an attachment that

here is a brilliant video by tubal cain regarding broaching keyways that might help explain the process to you... http://www.youtube.com/watch?v=8tAz5YDFtAs

Didn't think of that one. Mert

Hi All! I glad to present my mini-lathe page: http://www.luaz967.ru/en/themes/stanki/ It originally written on Russian and translated via Google so if there are some error or misunderstandings feel

If you're cutting threads, 29.5 degrees. Cutting other items...it depends... I have a different size, TCMT 2151 C5. HSS is your workhorse tip. Cheap, easy to sharpen, hard to damage, works well with

It's funny the information that does not seem to be readily available online for newbies like me... I have a LMM 8.5x16 So, I have some 3/8" indexable turning bars. What angle do I want on the tips to

Wow, you're right ! I Googled it and came up with a 1" nipple chuck for $35+ shipping or a complete set for $350+ ! I'm still happy I made one - I can use the price difference to buy more bar stock

There used to be expanding internal pipe wrenches that could hold a short piece: http://www.drillspot.com/products/72131/Proto_140A_Internal_Pipe_Wrench_3_Piece_Set Roy

Another place they're used is on cable releases for photography. Those are much smaller than pipe threads. Roy

It'd be a real PITA to do; the HS angular position is controlled by it having a V groove that mates with the raised V on the bed. Roy