Whether you're a DIY enthusiast or a professional, this 99-piece HSS drill bit set has you covered for almost any project! The set includes a wide range of sizes from 1.5 mm to 10 mm, with multiple duplicates of popular sizes like 1.5 mm, 2 mm, 2.5 mm, 3 mm, and more. The bits are made from high-speed steel (HSS) with a titanium coating for increased hardness, durability, and heat resistance. They’re suitable for drilling into wood, plastic, aluminum, brass, copper, and other soft metals. The included countersink bits help create clean, flush holes for screws. With a round shank design, these bits are compatible with most standard drill chucks. Packed in a compact case, they’re easy to store and organize. Perfect for home repairs, furniture assembly, craft projects, or general construction work. A reliable, versatile set that won’t let you down!