10 Best Metal Drill Bits 2025 in the United States

The Milwaukee 48-89-9224 Step Bit 6-Piece Set offers a solid option for those needing step drill bits primarily for metals like aluminum, brass, copper, and steel, as well as plastics and wood. Made from alloy steel with a black oxide finish, these bits are designed to resist wear and corrosion, enhancing their durability. The black oxide coating also helps reduce friction and heat buildup during drilling, which is beneficial for clean and efficient cuts.

The set includes six common sizes (#1, 4, 6, 7, 8, 9) that cover a reasonable range of hole diameters, making it versatile for various projects. The straight shank and spiral flute design improve chip removal and overall drilling performance. The taper point style aids in easy bit positioning and prevents slipping, which is especially helpful for users less experienced with metal drilling. At 1.6 pounds total, the bits are easy to handle and control, contributing to better accuracy when working on thin sheet metals or other materials.

This set is a good fit for DIY enthusiasts, hobbyists, or professionals who want a reliable, easy-to-use step bit set for general metal and multi-material drilling without needing specialized, heavy-duty bits.

The Milwaukee 29 Pc. Cobalt Red Helix Metal Drill Bit Set is designed for those who need reliable and durable drill bits for metalwork. Made from cobalt, these bits are tougher and last longer than standard high-speed steel bits, especially when drilling into hard metals. The 135-degree cutting angle is ideal for clean starts and precise drilling, reducing walking on the material. The black oxide finish adds some protection against rust but is less durable than some other coatings like titanium or black oxide with extra treatments.

With a straight shank and a red helix flute design, these bits efficiently remove metal chips, helping to keep the drill cool and the cut smooth. The set includes 29 sizes, which makes it versatile for different tasks, but it might be more than what a casual user needs.

This set suits hobbyists and professionals looking for a robust cobalt drill bit collection that handles metal well, though those seeking the most advanced coatings might want to compare other options.

The DEWALT Drill Bit Set is a solid choice for anyone looking to handle a variety of materials, including plastic, wood, and metal. Its 135-degree split point tip design is particularly beneficial as it minimizes walking and allows for accurate drilling. This feature is great for users who may struggle with positioning, especially on harder surfaces.

Made from high-speed steel, these bits are built for durability and can withstand the demands of tough tasks. The tapered web design enhances the bits' strength, helping to resist breakage, which is a common concern with drill bits. Additionally, the black and gold coating not only gives them a sleek look but also serves a practical purpose by protecting against rust and wear over time.

The 3-flats shank design is noteworthy as it reduces spin-out in the chuck, providing a more secure grip during use. This is a valuable feature for anyone who has had issues with bits slipping while drilling. Markings on the shank make it easy to identify sizes quickly, saving time during projects. This set is quite versatile, though those looking for a more extensive range might need to purchase additional bits separately.