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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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Damn - 5/16-32 TPI Is Not 8x0.75mm Ooffah!
So I have this little spindle that I wanted to make some accessories for,
and checked the size a couple of different ways, and came to the conclusion that the thread is 5/16-32. I tapped the hole with a new tap, and was ready to fit the part.. Ahh****, no Worky. The thread checks sure looked correct. I wondered how far off a 0.75mm pitch was, and it isn't 32 TPI but 33.866. I didn't have much more than 1/2" of thread to examine, and the 32 TPI tap even matches the 0.75mm pitch fairly closely. -- WB .......... |
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