The Vevor Forstner Bit Set includes 16 carbon steel drill bits designed for clean, precise boring in wood and composite board. Its universal round shank design works with a wide range of drilling equipment, including drill presses and handheld drills. The bits are built for durability with a blade hardness of HRC48-51 and are stored in a PE case for organization and protection. This set is suitable for hobbyists and professionals handling softwood, hardwood, veneers, and non-laminated chipboard.