This handy bead reamer set is an excellent tool for bead stringer
Diamond reamer / file set - 5 pcs - Mark's Miniatures
Replacement Tip, Small Diamond Bead Reamer – Beaducation
J1012PT - HSS Mini Router Bits Set ( 82210rb ) s-J1012PT
If your beads need reaming, nothing reams beads like diamond-coated bead reamers. This quartet includes a 5 tapered tip, 3-1/2 conical tip, a3-1/2 cylinder with a conical tip and a 4 pointed tip, all with color-coded plastic handles, and all ready to meet your most sophisticated bead-reaming needs.
SE Bead Reamer - Diamond, 4 PC
Diamond Bead Reamer Kit Contenti 540-218
Bead Reamer Set Diamond - HB2
Diamond Beading Reamer Set of Four - by GEMWORLD online store
Electric Bead Reamer with 3 Diamond Shaped Tips, Variable Speed Contro
Hand Bead Reamer - Jewelry Tools
Deluxe Diamond Coated Bead Reamer Replacement 3pcs Beadsmith
Bead reamer, steel and acrylic, diamond dust coated. Sold per 4-piece set. - Fire Mountain Gems and Beads