I was using my Russian lathe the other day so it won't lock up and I needed to drill a 7mm hole through the piece in the jaws and oops the supplied chuck just handles 1/4" (6.5mm) at most
While trying to sort that out I was doing a bit of recycling and the old battery drill has a nice chuck to 3/8" mmmmm. Well set to got it off the shaft at last (drilled out the stub), made a MT2 and press fit nose and bingo now have a bigger chuck and a rare win.
Just a pic for those who need them added of the original and the new one.
Pete