I have an Interstate shell mill.
a quick internet search finds this
Dorian Shell mills
and more digging, this
My question is, what do the letter designations mean? RDHW, RDEX or SEKN?
something to do with geometry I am guessing. The inserts I need are:
diameter: .472 (12 mm)
hole dia: .220
rake angle: +15'
Is Dorian my only source for inserts?