10 Best Drill Bits For Metal 2025 in the United States

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 48-89-4680 18-Piece Shockwave Impact Duty Thunderbolt Titanium Drill Bit Set is a strong contender for anyone needing reliable drill bits for metal. One of its standout features is the titanium coating, which helps to reduce heat buildup and minimize warping. This is especially useful if you need to work quickly on multiple applications. The set includes 18 different sizes, ranging from 1/16” to 3/8”, providing a wide range of options for various drilling needs. The 135-degree angled tip is designed to prevent walking, making it easier to start drilling accurately.

The parabolic flute design helps clear chips and debris efficiently, reducing friction and heat during use, which can further speed up your work and keep the bits cooler. This is particularly beneficial for heavy-duty applications where overheating can be a concern. The bits come in a sturdy plastic storage case with individually molded compartments and a slide lock system. This design ensures that the bits stay organized and protected during transit or storage. However, while the hex shank type enhances grip and stability, it may not be compatible with all types of drill chucks.

The bits are also rated for high torque applications, making them suitable for heavy-duty drills and drivers. On the downside, the premium features and build quality come at a higher price point compared to some other options on the market. Additionally, while the titanium coating offers durability, it may wear off over time if used extensively on very hard metals. This drill bit set is ideal for professionals or avid DIYers who need a reliable and versatile set for metal drilling tasks.