10 Best Drill Bits For Metal in 2026

An 8% cobalt M42 alloy delivers ten times the lifespan of a standard high-speed steel bit, which means you can drill through stainless steel, cast iron, and titanium without constantly replacing dull bits. That durable core, combined with a surface-hardened tip and a thick web-helix for stability, makes this Bosch set a reliable workhorse for the shop. It’s the go-to choice for anyone who regularly tackles mixed metal projects and wants a balance of performance and value without needing a massive assortment.

The Bosch CO14B bits use an 8% cobalt M42 alloy, which Bosch states delivers ten times the life of standard bits, so they last longer in typical metal drilling. Research indicates these bits can wear more quickly when used on work-hardened steel without cutting fluid. For the vast majority of drilling tasks in mild to hardened metals, this set provides durability and heat resistance in a compact, organized case that covers the most common sizes.

A hex shank rated for impact drivers is the core feature here. These bits are built to handle the jarring pulses and high torque that would snap a standard bit. Combined with the no-skate tip for precise starting and a coating to reduce heat, this set is purpose-built for anyone who primarily drives screws with an impact driver but needs to punch clean holes in metal without switching tools. It’s a specialist’s solution for the toolbox of a framer or mechanic who already has an impact in hand.

Designed for heavy-gauge and high-carbon steel, these bits handle tough materials often found in metalworking and construction. The set contains nine pieces, which is a focused selection rather than an extensive collection. For projects requiring many different hole sizes, a larger 29-piece set like the DeWalt Titanium Nitride Pilot Point offers more variety.

A 29-piece cobalt set means you have the right bit on hand for almost any metal thickness or hole size, from sheet metal to thicker stock. This makes it a natural fit for a busy shop or a pro tackling varied metal fabrication jobs where stopping to source a specific bit kills momentum.

The trade-off is its footprint. That nearly 10-inch-long case demands real estate on your workbench or in a large toolbox. It is longer than the Bosch CO14B set’s 7.2-inch case. If your work is primarily on-site or your storage is tight, this comprehensive kit might feel cumbersome. For a permanent shop setup where you want a single, go-to set for metal, the coverage is hard to beat.

Champion says these bits drill three times longer than competitors’ drills, which means they could last through more holes before wearing out. This is due to their premium high-speed steel and NOMO surface treatment. The 135-degree split point and tapered web geometry help the bit start accurately and flex under stress instead of snapping.

The set uses a mechanics length design, which is shorter than standard jobber bits. This reduced length provides added strength and rigidity for precise starts, but it also limits how deep you can drill in a single pass. For through-holes in thick materials, a longer bit set would be required.

The Pilot Point tip is the star here, biting cleanly on contact to eliminate walking and give you a precise starting dimple every time. For anyone frustrated by bits skating across metal or wood, that feature alone justifies the choice. The Titanium Nitride coating adds serious longevity to the high-speed steel, and the 29-piece range covers nearly every common job from fine detail up to a half-inch. This set suits the meticulous builder who values first-shot accuracy and wants a durable, general-purpose kit that lives in a protective case.

These bits use a titanium nitride coating and pilot point design rather than cobalt construction. The coating is noted for longer bit life, and the pilot point starts on contact for cleaner holes, which reduces walking and skidding on curved surfaces. For frequent drilling of hardened alloys like stainless steel, a cobalt set such as the Milwaukee Red Helix Cobalt is an alternative. In general mixed-material tasks, the DEWALT set’s durable tapered web and no-spin shanks provide reliable performance.

This is a 20-pack of a single, workhorse 1/8-inch cobalt bit, which makes it a straightforward choice for a shop that burns through this specific size on tough materials. The M35 alloy with 5% cobalt is formulated to handle stainless steel and cast iron without immediately dulling, and the self-centering split point is crucial for starting holes accurately on curved or hard surfaces. It’s built for the user who drills a lot of metal and wants a deep bench stock of a frequently used bit to avoid downtime.

The clear trade-off is the lack of size variety. You won’t be drilling pilot holes or clearance holes with this set alone. For a more versatile kit covering a range of common metalworking tasks, a multi-size set like the Champion Cutting Tool Brute Platinum would be a better fit. But if your operation or repeated project calls for a high volume of 1/8-inch holes in hard metal, this bulk pack from RCINDUS delivers the core material and design needed for that job. It works efficiently and without frills.

A 1/4-inch hex shank locks directly into any impact driver, which prevents the bit from slipping under high torque. Its titanium nitride coating lasts 2.5 times longer than non-coated bits. The 135-degree split point geometry also reduces walking for faster starts. This combination is built for drilling into materials like ferrous metal, wood, plastic, non-ferrous metal, cast iron, and stainless steel with an impact driver.

With 14 pieces, the set covers essential sizes but not the extensive range of a larger 29-piece set like the Champion Cutting Tool Brute Platinum. Its compact dimensions fit easily into a tool bag, unlike bulkier sets such as the Milwaukee Red Helix or DEWALT Titanium Nitride sets. The Bosch CO14B Cobalt set is a comparable 14-piece alternative, though it has different physical dimensions.

A 29-piece set in 1/64-inch increments from 1/16 to 1/2 inch means you’re covered for nearly any common metal drilling task without needing to buy individual bits. Its 135-degree split-point tip bites in immediately, so you don’t waste time chasing the bit across your workpiece. This is a straightforward, comprehensive set built for the DIYer or mechanic who needs reliable performance across a wide range of hole sizes without a premium investment. It’s the foundational drill bit kit for a home workshop.

The trade-off is in the material and bulk. The metal case is durable, but its substantial footprint demands a dedicated shelf. For drilling exclusively in tough alloys, you’ll want to step up. For general metal fabrication and repair, this IRWIN set delivers solid, predictable performance.

The 135-degree stepped split point is the star here. That geometry bites into metal immediately, eliminating the frustrating skate you get with standard bits on curved or hard surfaces. It means less pressure to start a hole and less risk of work piece damage. This set suits anyone drilling into steel or hardened metals regularly, especially where precision and clean entry matter. The full 1/16″ to 1/2″ range in 64th increments gives you the exact size you need without forcing an oversize hole.

These jobber-length bits are intended for general fabrication from a bench, but their length may not suit tight spaces where a shorter mechanics-length bit would fit. The 3-flat shank prevents spinning in the chuck, though sizes 11/64″ and smaller switch to a round shank, removing that anti-spin feature for the smallest diameters. The set is focused on creating smooth holes efficiently in hardened metals rather than offering maximum versatility for all drilling positions.

A set that starts at 9/16″ and goes up to a full inch is built for the heavy work. Those big diameters are exactly what you need for running conduit, plumbing, or structural fabrication. The 1/2″ reduced shank means your standard drill or magnetic drill press can handle them without a special collet. The M2 steel with its dual coating isn’t just for show. It genuinely helps with heat dissipation and chip flow when you’re pushing through thick steel plate, which is the whole point of having bits this size.

This is a focused set for large holes, not a comprehensive kit for every job. You get eight specific sizes from 9/16″ to 1″, all stored in a heavy-duty aluminum case that keeps these long bits organized and protected during transport. The set is designed for portable drilling of tough materials like steel, aluminum, and hardwoods.