The Makita 19 Piece HSS-TiN Drill Bit Set (B-67795) is a versatile and durable collection designed for precise drilling in metal, wood, and plastic materials. Each drill bit in this set is made from high-speed steel (HSS) and coated with Titanium Nitride (TiN), enhancing hardness, heat resistance, and durability. The TiN coating reduces friction for smoother drilling and extends the lifespan of the bits. The bits feature a cylindrical shank design, and are compatible with most standard corded or cordless drills. Features & Benefits • High speed steel • Cylindrical shank • Long lasting • Chisel edge • Split point Specifications • Diameter: 1.5-10mm Contents • 1.5 (2), 2 (2), 2.5 (2), 3 (2), 3.5 (2), 4, 4.5, 5, 5.5, 6, 6.5, 7, 8,10mm