Hello all, I'm looking ofr best ways to accomodate the attached part to a CNC lathe. The purpose is to finish the taper at the top of the part (from the attched picture, I'm referring to the long part shown, disregard the others). The part is a stem used in hip implants. I'm looking for a chucking system that will hold and maintain part in position so that roundness is as per print. Thanks.