Best Brass Drill Bits of 2025

The Hymnorq 15 Piece Metric M35 Cobalt HSS Drill Bit Kit is made of M35 cobalt steel, which is a hardened alloy measuring Rockwell hardness up to 67. It includes 15pcs of cobalt steel twist drill bits with a 135° quick-cut split point for self-centering and easy cutting. The set is well-organized in a plastic case and particularly successful in cutting through hard metals such as stainless steel and cast iron, although it can also be used for softer materials like copper and aluminum. A downloadable user guide with tips for drilling metals is also available.

The novorik HSS Drill Bit Set offers a range of advanced features to enhance your drilling experience. With stepped point drill bits, you can start drilling with ease and achieve faster results, which saves you time and effort. Made from high-speed steel, these bits are tough enough to handle various materials, including steel and brass. The 130-degree cutting angle ensures accurate centering, leading to cleaner holes. Plus, the specially designed storage box allows for easy organization and access to each bit, making your projects more efficient and hassle-free.

The CORTOOL Cobalt Drill Bits are designed for serious metalwork, featuring a robust M35 high-speed steel construction that includes 5% cobalt for enhanced durability. The fully ground design allows for efficient particle removal, reducing friction and heat, which means you can drill faster and cooler. With a 135° split point, these bits prevent walking, ensuring precise drilling without the need for a center punch. This set is versatile, easily tackling materials like stainless steel, aluminum, and even wood, making it a great addition to your toolkit.

The Savildo Diamond Bits come with four sizes to cater to your various glass grinding needs. The chromium-plated and hardened design enhances performance and durability, ensuring that you can work efficiently without worrying about damage. With a brass core, these bits reduce shaft binding, making your grinding experience smoother. Additionally, the double-plated diamond abrasive surface speeds up the grinding process, allowing you to finish your projects faster. Whether you're shaping or drilling stained glass, stone, or ceramic tiles, these tools are compatible with most glass grinders, providing versatility for your crafting tasks.