General description AlwaysH Piece Twist Drill Bit Set is a professional-grade accessory designed for efficient drilling in wood and other materials. This versatile set includes drill bits in various sizes, making it an essential addition to any woodworking toolkit. Technical specifications Material: 45 high carbon steel Sizes included: 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 25mm, 32mm Design: Four-blade with four chip flutes for efficient chip evacuation Compatibility and accessories Universal hexagonal square handle Compatible with electric drills, bench drills, cordless drills, and other metal drills Usage Ideal for woodworking projects, furniture assembly, cabinetry, and crafts Provides precise and smooth drilling, saving time and energy Other information Includes a screw extractor