Inquiry (采购产品): conical end mill or countersink 33 degrees per side large end .750 small end .125 no larger one needed same thing in a countersink would be fine. **** Hidden Message ***** BOB SYLVIA 190 ALBANY ST CAMBRIDGE, MA 02139 USA Company: M.I.T. Phone: 617-258-5836 E-mail: sylvia@psfc.mit.edu **** Hidden Message ***** sylvia@psfc.mit.edu