Coos Cues
Coos Cues
If you thread inward with it you have a bit more leeway on shank diameter. As long as the head is under the bored hole size.
Thread mill to match Radial pin
- Thread starter robbycar
- Start date
how would you thread with it any other way?
Coos Cues
Coos Cues
You can thread from front to back and you can thread from back to front. Your choice which ever gives you better results.
Does anyone know where that photo came from and/or where we can order one of those thread mills?
Another dumb question.........what the heck is the thread pitch of that cutter? Is it 10TPI or......... I've rarely seen those ball pins so I don't know diameters or what pitch they are. I was going to reach out to a tool maker and see if he's got the capability to grind such a thing. Does anyone know actual dimensions?
.3125 minor. 3/8 OD
7.5 TPI ( close to it ).
Buy one screw and take it there .
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7.5 Lovely. Who the hell invents these silly things. Goodness gracious. Ooook. Thanks much. I'll probably buy one and make my own forming tap of sorts. Thanks for the information.
I worked it out at 3.41mm pitch, when I made some joint protectors years ago, and used an R1.5 radius cutter and put more relief on the leading side of the tool. On thread mills that have alot of material to take out for special thread forms , like used for plastic containers, the cutter has 2 at full form for the top, and 2 at partial form for the bottom of the shape. Combined they generate the full form. So 2 are relieved at the base and 2 relieved at the top. As supplied, it was all full form.
Uni-Loc pins are 7.634 threads per inch,rather than a true 7 1/2 or 8.