Inquiry (采购产品): Diamond tool bits We use a diamond tipped tool bit(approx 3/16 sq)on a small commutator lathe to resurface the copper armature(approx 1/4 in dia) of small motors used to power radio controlled cars. Do you resurface these tool bits? If so, can you send some info? Thanks, John **** Hidden Message ***** John Tortorice 15632 USA Company: Self.......for hobby E-mail: generaljat@gmail.com **** Hidden Message ***** generaljat@gmail.com