General description The 8-Piece Flat Drill Bit Set features a universal size range of Ø 6 to 32 mm, making it ideal for drilling into softwood and chipboard. The set includes eight spade bits with a total length of 150 mm, all designed with a 1/4-inch quick-change hex shank for compatibility with most drills. Technical specifications Universal Sizes: Ø 6 / 10 / 13 / 16 / 19 / 22 / 25 / 32 mm Total Length: 150 mm Shank Type: 1/4" hex shank Other information