Best Cobalt Step Bits of 2025

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 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 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 TEMO Step Drill Set includes three pieces with varying step sizes: 6, 9, and 13 steps. With sizes ranging from 3/16 inch to 3/4 inch, you can easily drill holes of different diameters. These bits are crafted from M35 cobalt, making them suitable for a variety of materials, such as stainless steel, plastic, and wood. The double straight flutes enhance cutting efficiency, allowing you to enlarge existing holes smoothly and swiftly. This set offers versatility and convenience for various drilling tasks.

The Vearter Step Drill Bit is designed with 12 step sizes ranging from 5mm to 27mm, catering to various drilling needs. Its durable construction, made from high-speed steel, ensures longevity and quick performance. You will find it easier to create perfect holes across different materials, thanks to the spiral flute design, which cuts more gently compared to standard bits. The innovative double cutting design allows for consistent cuts and efficient chip removal, promoting smoother drilling without excessive heat.

The Nityunn Spiral Step Drill offers exceptional quality with its M35 cobalt-containing high-speed steel design. This drill bit is perfect for tackling high-hardness materials like stainless steel, ensuring precise drilling without the risk of breakage. Its innovative spiral flute design allows you to work more efficiently by clearing debris quickly and smoothly. You will also appreciate the hex shank that securely fits into power tool chucks, reducing slippage during use and making your drilling tasks easier.

The SALI M35 Step Drill is a versatile tool designed for various materials, including metal, stainless steel, and wood. With a drilling range of 4 mm to 12 mm and a quick-change 1/4 inch hex shank, it easily fits into all power tools, ensuring secure operation. Made from premium M35 cobalt steel, it offers high heat resistance and durability. Its unique titanium-coated tapered tips reduce friction, helping you work efficiently and with precision, while the spiral design prevents slipping, making clean-up easier.

The RENIE TOOLS Step Cone Drill is crafted from high-speed M35 Cobalt steel, ensuring durability and effective drilling in tough materials. Its 1/4" hex shank allows for easy attachment to various drill types, making it simple for you to switch between tasks. Each step is clearly marked with the diameter, allowing for precise drilling without guesswork. This drill is versatile, capable of cutting through materials such as stainless steel, brass, and plastic, making it an ideal choice for both professional tradespeople and DIY enthusiasts.

The toolant Step Drill Bit features a unique four spiral flute design, making cutting through various materials feel effortless, much like a hot knife through butter. The TiAlN coating provides exceptional surface hardness, allowing you to cut harder materials at higher speeds, thus improving efficiency. As a M35 Cobalt HSS step drill, it is perfect for stainless steel, metal sheets, wood, plastic, and aluminium, ensuring versatility for all your drilling needs. With 15 step sizes ranging from 4mm to 32mm, you have the convenience of precise drilling without the hassle of changing bits frequently.

The EZARC Step Drill Bit is designed for superior performance with its unique triple-flute C-profile design, providing you with increased stability and smoother cutting. Made from M35 cobalt high-speed steel, it offers enhanced toughness, making it perfect for cutting through harder materials. The AlTiN coating increases durability by providing excellent resistance to heat and wear, ensuring a longer lifespan. With thirteen step sizes available, this drill bit eliminates the need for multiple bits, allowing you to drill seamlessly through various thicknesses.