Made from high-quality S2 steel, known for its durability and strength. This material ensures that the bits are tough and long-lasting, capable of withstanding heavy use in both residential and commercial applications. Designed to be compatible with standard 1/4″ hex shank drivers and drill chucks. This makes them suitable for use with most power drills and screwdrivers, providing convenience and ease of use. Hex Bit Kit includes seven pieces. Color-coded hex bits in a 7 piece set Our color-coded hex bits you know and love, are now available in a 7-piece kit. Reach in your bag and know exactly what size bit you’re pulling out. Convenient magnet in the head so your screw doesn’t fall off when you’re at the top of a ladder and on your last one. Kit includes: 2.5″ x 1/4″ 2.5″ x 5/16″ 6″ x 1/4″ 6″ x 5/16″ 6″ x 3/8″ 6″ x 7/16″ 6″ x 1/2″