Originally Posted by junkyard
for the machinists out there....well jim and ret
can you mill a square tapered hole to fit onto a 3piece bottom bracket?
I'm not sure what you mean "to fit into a 3 piece bottom bracket?" Milling wouldn't be an option. There are ways to cut square holes, broaches, E.D.M.'s, lazers, water jet, also not sure why you need a tapered square hole? Explain.