Discover the ultimate 99 Piece HSS Cobalt Drill Bit Set featuring innovative split point self-centering tips designed for precision drilling. This high-speed steel (HSS) cobalt drill bit set is engineered for outstanding performance and durability, making it ideal for both DIY enthusiasts and professional tradespeople. The 135° split point design ensures easy penetration into materials, while the added 5% cobalt content enhances the longevity of each drill bit. This versatile set is perfect for tackling tough materials like high carbon steel and stainless steel, providing you with the reliability you need for any project. The comprehensive collection includes drill bits in various sizes: Ø1.5 (x16), 2 (x16), 2.5 (x15), 3 (x10), 3.2 (x10), 3.5 (x8), 4 (x8), 4.5 (x3), 5 (x3), 5.5 (x2), 6 (x2), 6.5 (x2), 8 (x2), and 10mm (x2), all conveniently housed in a sturdy metal storage case for easy organization and transport. At our online store, we pride ourselves on offering a wide variety of tools and workshop equipment suitable for every job, big or small. With over 10,000 products available, we are committed to helping you find exactly what you need. If you have any questions or can't find a specific item, please don't hesitate to reach out to our friendly customer service team for assistance.