Designed with a hexagonal anti slip for secure grip and multiple sizes covering mainstream diameters, it boasts marine grade for superior durability and reduced chipping on hard substances like alloys The standard hexagonal shank ensures seamless compatibility with most cordless drills and impacts driver, enabling quick bit changes without adapters to streamlines workflow and boosting productivity This 6 piece long spirals hexagonal shank drill bit set features an extended shaft that penetrates thick wood, eliminating the need for frequent bit swap during deeply drilling operations Tailored for hobbyists and professional craftsmen, this versatiled set meets the demands of both casual home projects and rigorous job applications Ideal for narrow deeply hole scenarios such as ship repairs and building trusses, as well as drilling into metal frames and hardwoods, it enhances efficiency for home workshops and construction site, Manufacturer: BULAIDAI