ITEM NAME:6Pcs 6-19mm 1/4" Hex Shank HSS Countersink Drill Bit 5 blades Chamfering Tools.Coated by nano blue, the chamfer cutter kit is rustproof, high wear-resistant, and has a long service life. The length of the countersink drill bit is 6.35mm with 1/4" Hex Shank. There're numbers on the corresponding countersink hole cutters, so it's convenient for you to pick out the one you need quickly.
