Best Cobalt Step Bits of 2026

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.

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 KASAFE M35 Step Drill is crafted from premium M35 cobalt high-speed steel, giving you twice the hardness of standard bits and making it ideal for drilling through both hard metals like stainless steel and soft metals such as copper and aluminium. Its 118° split point tip helps you start holes precisely without wandering, even on uneven surfaces, saving you time and effort. The spiral flute design efficiently clears metal shavings, preventing clogs and ensuring clean, burr-free holes. With 11 step sizes from 6 to 24mm, this versatile bit lets you drill or enlarge holes easily without frequently changing bits, speeding up your work.

The LEKOMESH Step Drill Bit is designed for precision and versatility. With a diameter range of 4-22mm, it provides ten different sizes to meet your various drilling needs. The 118° split point enhances accuracy, ensuring that you can drill through materials like stainless steel, aluminium, and wood with ease. Its industrial coating offers protection against thermal, abrasion, and corrosion, prolonging the bit's lifespan. For optimal performance, using cutting oil or water cooling is recommended, allowing you to enjoy an efficient drilling experience.

The toolant Cobalt Step Drill Bit offers exceptional performance for a variety of materials, including stainless steel, metal sheets, wood, and plastic. With its M35 cobalt HSS construction, it ensures durability and precision in cutting. The aluminium titanium nitride coating enhances hardness, allowing for faster cutting speeds and efficiency. Additionally, its unique four spiral flute design guarantees a smoother cutting experience, making your tasks feel effortless, like cutting through butter.

The SALI M35 Step Drill features a drilling range of 4 mm to 22 mm, allowing you to tackle various projects with ease. Its 1/4 inch hex shank ensures a secure fit into power tools, preventing any slippage during use. Made from premium M35 cobalt steel, this drill bit offers high heat resistance and durability. The unique titanium coating and spiral design reduce friction and overheating, making it easier for you to clean wood chips while working. This tool is perfect for both DIY enthusiasts and experienced craftsmen.

The YOKOCUT Step Drill Bits are crafted from high-speed steel with a titanium coating, ensuring reduced friction for smoother cutting. You can easily drill through materials like iron, aluminium, wood, and plastic, with a range of sizes from 4mm to 35mm to suit your needs. The automatic centre punch feature increases impact force, making it easier to mark precise points before drilling. Additionally, the innovative design includes a split point and double groove, which helps prevent waste and ensures a clean cut every time.

The ITEMPESTI M35 Step Drill is crafted from robust HSS (M35) material, making it ideal for working with tough materials like stainless steel, as well as plastics, wood, and sheet metal. Its TiAlN coating ensures high hardness and excellent wear resistance, so the drill bit stays sharp and durable even under high temperatures. The straight flute design provides greater machining accuracy and reduces cutting force, helping you achieve cleaner cuts on hard materials. Plus, the 10mm triangular shank offers greater strength and fits any drill chuck, giving you reliable and easy handling.