40 pcs Drill Bit Kit Cobalt Steel Drill Bits for Hardened Metal drilling bit
5 Pcs Center Drills Countersink Bit Spotting Drill Bit Industrial Tools. 4 Pcs Hinge Drill Bit Guide Set Wood Countersink Door Woodworking. 5 Pcs Drill with Countersink Deburrring Chamfering Deburring Bit.