25 Pieces include: 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10.0, 10.5, 11.0, 11.5, 12.0, 12.5, 13.0mm About this item: 25 piece set includes drill bits from 1 to 13 mm in 0.5 mm increments. The HSS 25 Piece Drill Bit Set is a comprehensive and versatile collection of drill bits for a wide range of drilling tasks. Made from high-speed steel (HSS), these drill bits are durable, reliable, and suitable for drilling into a variety of materials, including metal, wood, plastic, and more. The set includes 25 different sizes of drill bits, ranging from 1.5mm to 13mm, to meet all your drilling needs. The bits are precision-ground with a 135-degree split point, reducing walking and ensuring accurate starts. The bits come organized in a sturdy storage case, making it easy to find the right size and keep your bits organized and protected. Get the job done faster and more efficiently with this high-quality HSS 25 Piece Drill Bit Set.