01-19-2020, 10:06 AM
Do you have a taper attachment?
I made some SB spindle adapters with a MT3 hole and ended up boring the hole. I used a very sharp bit on the end of a 3.5" hang boring bar, fine feed and medium speed. I had to run a couple of spring passes because of the overhang and small OD boring bar. It took a while, but the results were very good - a MT3 center stuck like glue.
I made some SB spindle adapters with a MT3 hole and ended up boring the hole. I used a very sharp bit on the end of a 3.5" hang boring bar, fine feed and medium speed. I had to run a couple of spring passes because of the overhang and small OD boring bar. It took a while, but the results were very good - a MT3 center stuck like glue.