Cobalt Drill Bit Set, 115Pcs for Hardened Metals, Stainless Steel, Cast Iron and Wooden Plastics

The 115-piece drill bit set features a comprehensive range of sizes, including 29 fractional sizes from 1/16" to 1/2" in 1/64th increments, 26 letter sizes from A to Z, and 60 numbered sizes from #1 to #60. The set also includes 29 left-hand drill bits and 13 pieces in the 1/16" to 1/4" range.

The M35 cobalt drill bits are designed for durability, sharpness, and robustness, making them suitable for cutting through a variety of materials, including stainless steel, iron castings, copper, aluminum, plastics, and wood. The 135-degree point tip and twist design of the cobalt drill bits provide for faster cutting, self-centering to prevent walk-off, and efficient chip and particle removal.

The HSS (High-Speed Steel) M35 drill bit set is specifically engineered for use on hardened steel, offering excellent cutting performance. The 115 drill bits are hardened and polished for improved sharpness and precise cutting without wobbling, ensuring long-term use.

For convenient storage and organization, the drill bit set includes drill holders with size indexes and is packaged in a small, sturdy case. If you have any questions, the manufacturer is available to assist you.

In summary, this comprehensive drill bit set provides a wide range of sizes, high-quality materials, and efficient design features to tackle a variety of drilling tasks. The easy-to-use storage solution and the manufacturer's support ensure a seamless user experience.

product information: