Best Cobalt Drill Bits of 2025

The UK Drills Cobalt Drill Bit is designed for maximum drilling efficiency, featuring 5% cobalt to easily cut through tougher materials like stainless steel and cast iron. Its fully ground design enhances durability, making it ideal for professional or DIY projects. When attached to an electric drill, this bit excels in drilling through a range of materials including hardened steel and alloy. With this drill bit, you can tackle challenging tasks with confidence and effectiveness.

The sourcing map M35 Drill Bits are expertly crafted for precision drilling. With a diameter of 1.6mm, these bits are made from M35 high-speed steel, offering exceptional hardness and strength. This means you can enjoy faster drilling with reduced friction, making your tasks more efficient. The straightforward shank design allows for easy chucking into standard drill machines, ensuring a secure fit and accurate drilling. Suitable for various materials, these bits are perfect for your metal, wood, and plastic projects.

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 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 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.

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 Rennie Cobalt Jobber Drill is designed with a 5% cobalt composition and a 118-degree split point, making it ideal for drilling through stainless steel and hard steels. This feature ensures precision and reduces the risk of drill bit walking, giving you more control during use. Manufactured to DIN338 standards, it guarantees high quality and reliability. Additionally, its high heat and wear resistance means you can expect longer life and durability, saving you time and money on replacements.

The sourcing map Cobalt Drill Bits are designed for precision drilling in hard metals. With a working diameter of 10.5mm and a length of 130mm, these bits are crafted from high-speed steel with M35 cobalt, ensuring exceptional hardness and durability. The innovative fully ground spiral groove design allows you to drill faster by efficiently removing debris while minimising friction and heat. Additionally, the 135° straight shank split point helps prevent walking on the surface, making your drilling tasks more accurate and effortless.

The STROTON Cobalt Drill Bits are crafted from premium M42 8% cobalt steel, providing exceptional heat, wear, and chip resistance. This means you can enjoy a longer tool life, making them a worthwhile investment. They excel in cutting through tough materials, including stainless steel, hard metals, and even hardwood, allowing you to tackle a variety of tasks with ease. With the capability to operate three to five times faster than standard bits, you'll find the cost per hole is reduced, saving you time and money.

The Misuyue Cobalt Drill Bits are designed for precision and efficiency. With their 135° self-centering tips, you can expect accurate drilling without the hassle of the bit wandering off course. Made from high-speed steel M42, these bits offer exceptional heat and wear resistance, allowing you to cut through tough materials like stainless steel with ease. The sharp edges of the drill bits ensure fast results, eliminating the need for pre-drilling. The long-life titanium coating enhances durability and reduces friction, making your drilling experience smoother and more effective.