It may be bad form to ask for a product recommendation here, but it's tough to do web searches for these things. Apologies if this question is out-of-line.
I just picked-up a 3-jaw 3-3/8" lathe chuck at a yard sale and it looks like it's in great shape. The problem is that it's got a 3/4x16tpi threaded hole and my lathe (a vintage 1950 Shopsmith 10ER) has a 5/8" plain spindle.
I don't seem to be able to find much in the way of spindle adapters with 3/4x16tpi outer threads, let alone with a 5/8 plain internal bore. Does such a beast exist? Or will I have to get two adapters:
- 5/8-plain to 1x8tpi
- 1x8tpi to 3/4x16tpi
That seems like a lot of hardware for a rather short spindle.