Best Cobalt Drill Bits of 2026

The SALI Cobalt Drill Bits set includes ten 6mm drill bits made from M35 high-speed steel, which is notably harder than standard HSS. This means you will benefit from increased durability and wear-resistance, making it ideal for tough materials. The fully ground design ensures efficient particle clearance, reducing friction and heat, which leads to cooler and faster drilling. Additionally, the 135° split point design allows for precise drilling without the need for a centre punch, enhancing your accuracy and speed.

The Meccion Cobalt Drill Bits are designed for professional use, made from 5% cobalt high-speed steel to ensure durability and effectiveness. Their 135° self-centring tips allow for precise drilling without the need for pre-punching, making your tasks quicker and easier. With a hardness rating of HRC63-64, these bits can withstand high temperatures, ensuring a long service life when used with cutting oil. They are versatile enough to work on various materials, including stainless steel, cast iron, and wood, making them an excellent addition to your toolkit.

The Meccion Cobalt Drill Bits are crafted from 5% Cobalt High Speed Steel, ensuring professional-grade performance. The 135° self-centring tips allow for precise drilling without the need for pre-punching, making your tasks quicker and easier. These bits are designed for durability, featuring high temperature quenching that gives them exceptional hardness, suitable for tough materials. With their ability to drill through metals, stainless steel, and even wood, you'll find these bits versatile for various projects.

The HPMAISON Cobalt Drill Bits offer exceptional versatility for your drilling needs. Made from durable M35 high-speed steel with 5% cobalt, these bits are perfect for tackling tough materials like stainless steel and cast iron. Their top heat resistance ensures optimal performance when used at 1500 RPM or higher, making your drilling tasks more efficient. The precise 135° split point design allows for accurate drilling, reducing the chance of walking and ensuring clean, fast chip removal. You’ll appreciate the convenience of the included plastic storage box for easy access and organisation.

The SALI Cobalt Drill Bit Set offers a robust collection of 20 drill bits made from M35 high-speed steel, ensuring superior hardness and durability thanks to its 5% cobalt content. The fully ground spiral groove design enhances drilling efficiency by reducing friction and heat, allowing for a faster and cooler performance. With a 135° split point, you can enjoy precise drilling without the need for a centre punch, making your tasks easier and more accurate. The included rugged storage case keeps your bits organised, simplifying your project preparations.

The KASAFE M35 Step Bit is crafted from premium M35 cobalt high-speed steel, giving you twice the hardness of standard bits. This means you can drill through tough metals like stainless steel and cast iron, as well as softer metals such as copper and aluminium, with less wear and longer bit life. Its 118° split point tip self-centres for precise hole starts without needing a pilot hole, saving you time and effort. The spiral flute design efficiently removes metal shavings, preventing clogs and helping you achieve clean, burr-free holes quickly. With 11 step sizes from 3 to 13mm, you can easily drill or enlarge holes without changing bits, making your work faster and more convenient.

The Misuyue Cobalt Drill Bits feature precise 135° self-centring tips that prevent the drill from wandering, helping you achieve accurate holes with ease. These high-speed steel M42 bits contain 8% cobalt, making them ultra-hard and highly resistant to heat and wear, so you can drill faster and for longer periods. The sharp edges allow for quick drilling with low force, even through tough materials like stainless steel and hardwood, without needing pre-punching. Additionally, the long-life titanium coating reduces friction and sticking, giving you smoother drilling and better durability.

The STROTON Cobalt Step Drill Bit offers exceptional durability, thanks to its premium M35 cobalt steel construction, which provides excellent heat, wear, and chip resistance. You will appreciate the three-times ground cutting edge, designed to effortlessly cut through various materials, including stainless steel and wood. This drill bit operates two to three times faster than standard options, making it an efficient choice. Although it comes at a higher price, its ability to produce more holes means lower cost per hole for you.

The YOKOCUT Cobalt Step Bit is designed for precision and efficiency, allowing you to drill holes ranging from 4mm to 32mm with 15 incremental steps. Made from premium HSS Cobalt M35 steel, it offers excellent heat and wear resistance, ensuring a longer lifespan for the tool. You will find that it runs three times faster than standard bits, making it ideal for tackling tough materials like stainless steel and sheet metal. Its specially ground cutting edge enhances performance, making drilling through various materials easier and more effective.