... tin-coated * 43pcs drill bits black finished * 10pcs power nut (5, 5.5, 6, 7, 8, 9, 10, 11, 12, 13) * 20pcs ... ) * 11pcs masonry drills (3, 4, 4.5, 5, 5.5, 6, 6.5, 7, 8, 9, 10mm) * 8pcs wood working drills (4 ... , 4, 5, 6, 7, 8, 9, 10mm) * 6pcs flat wood drills (10, 12 ...