10 Best Drill Bits For Metal 2026 in the United States

The Drill America 29 Piece Cobalt Stepped Point Drill Bit Set is a solid choice for anyone needing to drill through metal and other tough materials like acrylic and brass. Made from cobalt, these bits are tougher and last longer than standard steel bits, especially when working with hard metals. The gold oxide finish helps reduce heat buildup, which means the bits stay sharper and cut more efficiently. The 135-degree split point is designed to start drilling quickly without wandering, making it easier to get precise holes.

The set includes a wide range of sizes from 1/16" up to 1/2", covering most common drilling needs in metalworking. The 3-flat shank design on larger bits prevents slipping in the drill chuck, although smaller bits have round shanks which might not grip as securely. One minor downside is that these bits are jobber length, which is standard but not ideal if you need extra-long bits for deeper holes. Also, since they are made in China, quality control might vary slightly, but Drill America has a good reputation.

This set comes in a convenient round case for organization and portability, making it useful for both hobbyists and professionals who often work with metal. For those who regularly drill various hole sizes in hard metals and want durable bits that stay sharp longer, this set is worth considering.

The BOSCH CO14B 14-Piece Assorted Set is a solid choice for those needing reliable drill bits for various metal applications. Made from Cobalt M42 material, these bits are known for their durability and high heat resistance, making them particularly suitable for tough materials like stainless steel, cast iron, and titanium.

The enhanced M42 alloy contains 8% cobalt, which significantly extends the lifespan of the bits compared to standard options. The thick web-helix design further adds stability, which is beneficial for drilling through hard substances without bending or breaking the bits. The set includes a range of sizes from 1/16" to 1/2", ensuring versatility for different drilling needs. With a 135-degree cutting angle, these bits can quickly penetrate surfaces, and the three-flat shank design helps prevent slippage in the drill chuck.

While the titanium finish increases corrosion resistance, it may not be as durable as some other coatings. Additionally, these high-quality bits come with a higher price point, which might be a consideration for those on a budget. The included case keeps everything organized, which is a handy feature for storage and transport. If you're working on demanding metal drilling projects, this set from Bosch is worth considering.

The Milwaukee Electric Shockwave Impact Duty RED Helix Titanium drill bit is designed with metalworking in mind, making it a solid choice if you often drill through metal, plastic, or wood. Its titanium coating helps reduce heat buildup during drilling, which generally means the bit will last longer and stay sharper compared to uncoated bits. The 35-degree cutting angle is a good middle ground for metal drilling, providing efficient cutting without causing excessive wear. A thick tapered web adds durability, helping the bit resist breaking under pressure. The straight 1/4" hex shank ensures a stable fit in many drills and impact drivers, and the laser-etched sizes make it easy to identify the bit quickly. The drill bit features two spiral flutes, which are standard for metal bits, helping to clear away metal shavings effectively.

On the downside, this product comes as a single bit rather than a set, so if you need multiple sizes, you’ll have to buy additional pieces separately or opt for a set. While the titanium coating is good for longevity, it’s less effective than some more advanced coatings for very hard metals. Also, with a cutting angle fixed at 35 degrees, it may not be as versatile for all kinds of metal or precision tasks.

This Milwaukee bit is a durable, reliable option for general metal drilling, especially suited to those who want a quality bit that holds up well to impact use and heat. It is best suited for users who need a single, sturdy bit rather than a full range of sizes.