10 Best Metal Drill Bits 2026 in the United States

The BOSCH CO21B 21-Piece Drill Bit Set offers a solid choice for anyone needing reliable metal drilling tools. Made from Cobalt M42 alloy, these bits are designed for tough jobs involving stainless steel, cast iron, titanium, and other metals. The inclusion of 8% cobalt makes them much more durable and heat-resistant than standard bits, meaning they won’t wear out quickly under heavy use or high temperatures. This feature is especially useful if you frequently drill hard metals.

The 135-degree split point design helps the bits start drilling easily without slipping, eliminating the need for extra tools like a center punch. The thick web-helix (spiral) flute design adds stability and helps remove metal shavings efficiently, making drilling smoother. Another helpful feature is the three-flat shank on larger bits, which improves grip in the drill chuck to prevent slipping during use. The set covers a wide range of sizes from 1/16 inch up to 1/2 inch, making it versatile for various projects. It comes in a plastic case that keeps everything organized but isn’t the most rugged option for heavy workshop use.

These bits excel in durability and performance but might be overkill if you only need to drill softer materials like wood or plastic. The price tends to be higher compared to basic steel bits because of the cobalt content. If you often work with hard metals and want a long-lasting, high-quality set, this BOSCH kit is a dependable choice, whereas for occasional or light-duty drilling, a less expensive set might suffice.

The DEWALT Titanium Nitride Coated Drill Bit Set is a solid choice for anyone needing reliable drill bits for various materials, including metal, plastic, and wood. The set includes 21 pieces, ranging from 1/16-inch to 1/2-inch sizes, catering to a wide array of drilling tasks. One of its standout features is the Titanium Nitride coating, which enhances durability and extends the life of the bits, making them a great investment. The Pilot Point design allows for cleaner holes and starts on contact, reducing the chances of wandering, which can be particularly helpful for DIY enthusiasts and professionals alike.

Another advantage is the tapered web design, which provides extra strength and helps minimize breakage during use. This is especially beneficial for users who frequently drill into tougher materials. The no-spin shank is also a thoughtful feature that ensures better grip and easier handling.

There are a few considerations to keep in mind. While the set covers a range of sizes, it may not include all the very small sizes needed for specialized tasks. Additionally, the plastic case, while sturdy, may not be as durable as a metal one, which some users prefer for long-term storage. This drill bit set is well-suited for both home improvement projects and professional needs, offering a blend of quality and versatility that most users will find beneficial.

The Milwaukee 48-89-4680 18-Piece Shockwave Impact Duty Titanium Drill Bit Set is designed for those who require reliable and durable drill bits for heavy-duty tasks. One of its standout features is the titanium coating, which significantly reduces heat buildup during use. This means you can use the bits for extended periods with less risk of warping, making them suitable for various applications. The special parabolic flute design enhances chip clearance, allowing for a quicker and cooler drilling experience, which is a big plus for efficiency.

With an assortment of sizes included in the set, ranging from 1/16” to 3/8”, you’ll find a bit for almost any task. The hex shank type also makes it easy to switch out bits, ensuring compatibility with most drills. Plus, the included storage case is well-designed, featuring a slide lock system and individual compartments that keep your bits organized and protected during transport.

These bits are particularly effective for higher torque applications; however, they may not be the best choice for softer materials, as the titanium coating can sometimes lead to less effective drilling in those cases. Additionally, the price point may be higher than basic bit sets, which could be a consideration for casual DIY users or those on a tight budget.