Best Drill Bits For Metal

The DEWALT DW1361 set is the top choice for general metal drilling because of its Pilot Point tip. This tip allows the bit to start cutting immediately without a center punch, saving time on every hole. Owner reviews consistently praise how sharp these bits stay after dozens of uses in mild steel and aluminum.

The black oxide coating provides heat resistance and reduces friction, which is critical when drilling metal at high speeds. While the set lacks cobalt for harder alloys, it is the most reliable option for standard steel, angle iron, and sheet metal projects around the home or workshop.

The Milwaukee Shockwave Red Helix bits are built with a cobalt alloy that maintains hardness at high temperatures, making them perfect for stainless steel and hardened metals. The unique red helix flute design pulls debris out of the hole, preventing binding and breakage. Owner reviews highlight how these bits last longer than standard HSS bits in tough materials.

These bits also feature a 1/4-inch hex shank that works directly with impact drivers, not just drills. This versatility is a major advantage for tradespeople who switch between tools frequently. The set is smaller than others, but each bit is engineered for heavy-duty use.

The Bosch HCBG210B set offers cobalt construction at a budget-friendly price, making it an excellent entry point for DIYers. These multi-construction bits can handle steel, stainless, wood, and even masonry, reducing the need for multiple sets. Owner reviews note that they drill clean holes in mild steel without excessive pressure.

The split-point tip helps prevent the bit from skating across the surface, which is a common frustration with cheaper bits. While the 10-piece set covers the most common sizes, users drilling large holes will need to buy individual bits separately. For the price, this set delivers solid performance for occasional metal drilling.

The Makita P-84717 set uses a titanium nitride coating that reduces friction and increases the lifespan of each bit. This coating allows the bits to stay sharper longer than standard black oxide bits when drilling through aluminum and mild steel. Owner reviews mention that these bits still cut well after drilling hundreds of holes in sheet metal.

The 135-degree split point ensures the bit bites into the material quickly without wandering. This set includes 21 pieces covering sizes from 1/16 to 1/2 inch, which covers almost any home or workshop need. However, the titanium coating is not as durable as cobalt for very hard metals like stainless steel.

The Irwin Cobalt M-35 bits are formulated with 5% cobalt content, which provides superior heat resistance for drilling through thick steel and structural metal. The 135-degree split point allows the bit to penetrate without needing excessive downward force, reducing the risk of breakage. Owner reviews on heavy-duty forums confirm these bits handle multiple holes in 1/4-inch steel plate without dulling.

This set is smaller, focusing on the most common sizes for metalwork. It is not the best choice for thin sheet metal, where a standard HSS bit might be more appropriate. For fabricators and metalworkers who regularly drill into thick stock, these bits offer professional-grade performance.