Create perfect countersunk holes for flush screw placement in wood with the MYWISH 5-Piece Tapered Countersink Drill Bit Set. This set includes 5 popular sizes (#4, #6, #8, #10, #12) with 4-flute countersink cutters made from high carbon steel for strength and reliability, and tapered drill bits made from high-speed steel for excellent cutting ability and durability. The sharp 82-degree tapered design ensures fast, clean, and smooth countersinking for a close fit with screws. Featuring a 1/4 in. hex shank, these bits are compatible with 1/4 inch standard quick change chucks, including impact drills. The adjustable design allows you to control the depth of the pilot hole for precise results. MYWISH countersink bits are ideal for woodworking with bench drills, hand drills, and conventional electric drills.