Jens Eirik Skogstad | 30/07/2018 06:47:40 |
![]() 400 forum posts 22 photos | Hi folks, i has bought milling arbor with 3/8 treads for drawbar. I has tried with 3/8 tap, do not fit in the 3/8 treads. Which size is treads on 3/8 drawbar? I must create a new drawbar for milling arbor with 3/8 size. |
JasonB | 30/07/2018 07:02:33 |
![]() 25215 forum posts 3105 photos 1 articles | Try 3/8" whitworth |
Jens Eirik Skogstad | 30/07/2018 07:17:26 |
![]() 400 forum posts 22 photos | Also it's 16 treads on 3/8? |
JasonB | 30/07/2018 07:24:58 |
![]() 25215 forum posts 3105 photos 1 articles | Yes 16tpi on 3/8" Whit |
Michael Gilligan | 30/07/2018 07:29:49 |
![]() 23121 forum posts 1360 photos | This nicely summarises UNC / Whitworth compatibilty: **LINK** https://rycote.zendesk.com/hc/en-us/articles/204439391-3-8-Thread-Standards MichaelG. |
Jens Eirik Skogstad | 30/07/2018 08:03:21 |
![]() 400 forum posts 22 photos | Thanks a lot! Now i can create a new drawbar with 3/8-16 and i has already 2 drawbar with 12mm and 1/2". |
Martin Connelly | 30/07/2018 08:23:40 |
![]() 2549 forum posts 235 photos | m10 x 1.5 is very close to3/8" x 16tpi. I would check if it is M10 as well as 3/8" x 16. Martin C |
SillyOldDuffer | 30/07/2018 09:11:14 |
10668 forum posts 2415 photos | Posted by Martin Connelly on 30/07/2018 08:23:40:
m10 x 1.5 is very close to3/8" x 16tpi. I would check if it is M10 as well as 3/8" x 16. Martin C +1 for that possibility. They're so close you can convert one into the other by gently running a tap into the female thread. I wouldn't recommend it for everything, but it's an OK bodge on a drawbar. Dave Edited By SillyOldDuffer on 30/07/2018 09:11:39 |
Jens Eirik Skogstad | 30/07/2018 09:21:13 |
![]() 400 forum posts 22 photos | I has tried with M10, will not distort the treads.. best to use correct size. |
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