I don't think option 2 would work, 12mm is only 26thou under ½".
Option 3 sounds best but you might need three adaptors of the correct length to be able to use one drawbar.
I'd prolly go with 3 drawbars. (well marked!)
Option 3 sounds best but you might need three adaptors of the correct length to be able to use one drawbar.
I'd prolly go with 3 drawbars. (well marked!)
Busy Bee 12-36 lathe, Busy Bee Mill drill, Busy Bee 4x6 bandsaw, Homemade 9x17 bandsaw, Ad infinitum.