Michigan Drill 544C Series Cobalt Steel Countersink and Debarring Tool, Ground Finish, Double End, 1/4" Shank Diameter, 82 Degrees Point, 0 Size

Michigan Drill 543 Series High-Speed Steel Countersink and Debarring Tool, Ground Finish, Double End, 1/4" Shank Diameter, 60 Degrees Point, 0 Size