Supernova Chuck - how to tell insert thread size

[smartecosse]

I have an old supernova chuck that has an insert with it.

I can't see any markings on the insert other than the letter "C"

Can this somehow be decoded to give me what thread it is or is that just a random letter stamped on it for some reason?

Thanks

 

[barrywat]

According to the page on Teknatools website http://www.teknatool.com/products/Lathe ... r_page.htm, that is a 1" x 10tpi BSF RH insert.

 

[smartecosse]

According to the page on Teknatools website http://www.teknatool.com/products/Lathe ... r_page.htm, that is a 1" x 10tpi BSF RH insert.

Brilliant!

Thanks a lot for that