10 Best Metal Drill Bits 2025 in the United States

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.

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.