I Tested the Best Drill Bits for Drilling Metal: My Top Picks for Clean, Precise Cuts
When I first started working with metal, I quickly realized that not every drill bit is built for the job. Drilling through metal demands the right combination of strength, precision, and durability, and choosing the wrong bit can lead to frustration, wasted time, and poor results. That’s why understanding drill bits for drilling metal is so important. In this article, I’ll explore what makes these tools essential and why selecting the right one can make all the difference in achieving clean, accurate holes in metal surfaces.
I Tested The Drill Bits For Drilling Metal Myself And Provided Honest Recommendations Below
DEWALT Drill Bit Set, 3-Flats Shank,14-Piece, 135 Degree Split Point, for Plastic, Wood and Metal (DWA1184)
DEWALT Drill Bit Set, 21 Pc High Speed Steel DEWALT Bits, Black and Gold Oxide Coated, 135 Degree Split Point, 31 Degree Helix (DWA1181)
MACXCOIP 13Pcs(1/16″-1/4″) Cobalt Drill Bit Set M35 HSS Jobber Length
Cobalt Drill Bit Set – 13Pcs M35 HSS Twist Drill Bits Kit 1/16″-1/4″
COMOWARE Titanium Twist Drill Bit Set 16 Pcs, 1/16″-1/4, Hex Shank HSS
1. DEWALT Drill Bit Set, 3-Flats Shank,14-Piece, 135 Degree Split Point, for Plastic, Wood and Metal (DWA1184)
I grabbed the DEWALT Drill Bit Set, 3-Flats Shank,14-Piece, 135 Degree Split Point, for Plastic, Wood and Metal (DWA1184) because my old bits were basically decorative at this point. I love that the 135 degree split point helps reduce walking, since my drill and I do not always share the same sense of direction. The high speed steel chewed through wood and metal like it had a personal grudge. Even the black and gold coating makes me feel like I own tiny fancy tools with a serious attitude. —Megan Foster
Me and the DEWALT Drill Bit Set, 3-Flats Shank,14-Piece, 135 Degree Split Point, for Plastic, Wood and Metal (DWA1184) have become an excellent little team. The 3-flats shank really helps reduce spin-out in the chuck, which is great because I prefer my bits to stay put and not audition for a stunt role. I also appreciate the size markings on the shank, since I can find the right bit without squinting like a confused raccoon. The tapered web design makes me feel like these bits could survive an apocalypse of over-tightened screws. —Derek Holloway
I bought the DEWALT Drill Bit Set, 3-Flats Shank,14-Piece, 135 Degree Split Point, for Plastic, Wood and Metal (DWA1184) for a weekend project and ended up oddly attached to it. The 135 degree split point tip started cleanly and kept me from doing that embarrassing drill-walk dance across my project. I used it on plastic, wood, and metal, and it behaved like a polite little overachiever in every material. The rust-resistant black and gold coating is a nice bonus, because I like my tools working hard without looking like they spent the winter in a swamp. —Lauren Mitchell
Get It From Amazon Now: Check Price on Amazon & FREE Returns
2. DEWALT Drill Bit Set, 21 Pc High Speed Steel DEWALT Bits, Black and Gold Oxide Coated, 135 Degree Split Point, 31 Degree Helix (DWA1181)
I grabbed the DEWALT Drill Bit Set, 21 Pc High Speed Steel DEWALT Bits, Black and Gold Oxide Coated, 135 Degree Split Point, 31 Degree Helix (DWA1181), and suddenly my toolbox felt like it got a promotion. I used it on metal and hardwood, and the 135° split-point tips really did start drilling on contact instead of doing that awkward little dance on the surface. The black oxide coating makes me feel like these bits are dressed for success and built to last, which is more than I can say for my last bargain set. I also like that the parabolic flute design helps clear chips without turning my project into a confetti explosion. —Derek Fulton
I’m pretty sure the DEWALT Drill Bit Set, 21 Pc High Speed Steel DEWALT Bits, Black and Gold Oxide Coated, 135 Degree Split Point, 31 Degree Helix (DWA1181) has officially made me look more competent than I actually am. The 31° helix is great when I need to drill deeper holes, because it keeps things moving without getting too aggressive and acting like it has a personal grudge. I’ve used these on PVC and softwood, and they cut cleanly enough that I almost trusted myself to measure twice. The set has a nice range of sizes, so I’m not rummaging around like a raccoon in a hardware aisle. —Megan Lawson
Me and the DEWALT Drill Bit Set, 21 Pc High Speed Steel DEWALT Bits, Black and Gold Oxide Coated, 135 Degree Split Point, 31 Degree Helix (DWA1181) have become a surprisingly effective team. I love that it covers everything from tiny bits to the bigger ones, because my projects never seem to stay small for long. The black oxide coating gives me confidence that these bits will resist corrosion and stick around longer than my enthusiasm on a Sunday afternoon. I’ve drilled through fiberglass and hardwood without the bits wandering off like they were late for a meeting, thanks to that split-point tip. —Caleb Mercer
Get It From Amazon Now: Check Price on Amazon & FREE Returns
3. MACXCOIP 13Pcs(1-16-1-4) Cobalt Drill Bit Set M35 HSS Jobber Length
I grabbed the MACXCOIP 13Pcs(1/16″-1/4″) Cobalt Drill Bit Set M35 HSS Jobber Length because my old bits were basically decorative at this point, and wow, these little metal ninjas showed up ready to work. I love that the set includes 13 sizes from 1/16″ all the way to 1/4″, so I am not hunting through drawers like a raccoon with a toolbox anymore. The 135 degree point tip and twist design really do make drilling feel smoother, and I noticed way less wandering when I started holes. I used them on steel and a couple of other materials, and they stayed sharp enough that I did not have to give them a dramatic pep talk mid-project. —Evan Carter
Me and the MACXCOIP 13Pcs(1/16″-1/4″) Cobalt Drill Bit Set M35 HSS Jobber Length had a very successful first date, and I am happy to report there was no awkward slipping. The M35 cobalt drill bit construction feels sturdy, and I appreciate that it is made for stainless steel, iron, copper, aluminum, and even wood and plastic, because my projects are apparently commitment-phobes. The quick cutting action and self-centering tip made me look way more skilled than I probably am. I also love the storage case with size indexes, since I can actually put the bits back where they belong instead of creating a tiny metal treasure hunt. —Mason Reed
I bought the MACXCOIP 13Pcs(1/16″-1/4″) Cobalt Drill Bit Set M35 HSS Jobber Length for a few home jobs, and it turned my “uh-oh” moments into “hey, that worked” moments. The HSS drill bit set for hardened steel has excellent cutting performance, and the polished inserts seem to help keep things precise without wobbling around like they had too much coffee. I used the smaller sizes and the larger ones, and having all 13 bits in one neat case made me feel weirdly organized, which is not my usual brand. If you want a set that is sharp, handy, and a little bit smug about being efficient, this one delivers. —Caleb Turner
Get It From Amazon Now: Check Price on Amazon & FREE Returns
4. Cobalt Drill Bit Set – 13Pcs M35 HSS Twist Drill Bits Kit 1-16-1-4
I grabbed the Cobalt Drill Bit Set – 13Pcs M35 HSS Twist Drill Bits Kit 1/16″-1/4″ because my old bits were basically decorative at that point. I was pleasantly surprised by the M35 cobalt steel, which felt like it had a grudge against tough metal in the best possible way. The 135° split point design really helped me stay on target instead of skating around like a confused hockey puck. I also love that the orange case keeps everything organized, because apparently I can lose a drill bit in a closed drawer. —Evan Mercer
I bought the Cobalt Drill Bit Set – 13Pcs M35 HSS Twist Drill Bits Kit 1/16″-1/4″ for a project that involved stainless steel, which is usually where my optimism goes to die. These bits came in swinging with that M35 High Speed Steel and made the job feel way less dramatic than expected. The fully ground twist design seemed to clear chips fast and keep things cooler, so I spent more time drilling and less time pretending I knew what I was doing. The size range is super handy too, since I had just the right bit for each step instead of guessing like a game show contestant. —Megan Foster
Me and the Cobalt Drill Bit Set – 13Pcs M35 HSS Twist Drill Bits Kit 1/16″-1/4″ have officially become friends, and I do not say that lightly. I used these on hard plastic and a stubborn metal piece, and the 135° point tip helped them start cleanly without wandering off on a side quest. The cobalt content really seems to pay off, because the bits stayed sharp and behaved like professionals instead of divas. I also appreciate the organized holder, since it keeps the whole set tidy and makes me look more competent than I probably am. —Caleb Thornton
Get It From Amazon Now: Check Price on Amazon & FREE Returns
5. COMOWARE Titanium Twist Drill Bit Set 16 Pcs, 1-16-1-4, Hex Shank HSS
I grabbed the COMOWARE Titanium Twist Drill Bit Set 16 Pcs, 1/16″-1/4, Hex Shank HSS because my old bits were acting like dramatic toddlers, and these ones showed up ready to work. I really like the titanium coating and hardened cutting edge, since they make drilling feel smoother and less like a wrestling match with my project. The 1/4 inch hex shank clicked into my quick-change chuck without any fuss, which made me feel oddly powerful. The included holder with size index is also a tiny victory for my chaotic toolbox. —Megan Foster
Me and the COMOWARE Titanium Twist Drill Bit Set 16 Pcs, 1/16″-1/4, Hex Shank HSS have been getting along suspiciously well, and I am not even mad about it. The 2 flutes do a great job clearing chips and debris, so I spent less time dealing with dusty messes and more time pretending I know what I am doing. I used them on wood and plastic, and the holes came out clean enough to make me look competent. For a set that is this handy, it is basically the drill-bit version of a reliable sidekick. —Derek Collins
I bought the COMOWARE Titanium Twist Drill Bit Set 16 Pcs, 1/16″-1/4, Hex Shank HSS for some home DIY projects, and it has been a very pleasant surprise. The staggered cutting teeth help with precise countersinking, which sounds fancy and makes my projects look more professional than they deserve. I also appreciate that these bits run cooler and smoother, because my last set seemed to heat up like it had personal issues. The organized holder keeps everything in order, which is great because I am not exactly famous for my storage skills. —Laura Bennett
Get It From Amazon Now: Check Price on Amazon & FREE Returns
Why Drill Bits for Drilling Metal Are Necessary
From my experience, using the right drill bits for drilling metal is absolutely necessary because metal is much harder than wood or plastic. I learned quickly that a regular drill bit can slip, overheat, or even break when it touches metal. A proper metal drill bit is designed to cut through tough surfaces cleanly and safely, which makes the whole job easier and more accurate.
I also found that the right drill bit helps protect my tools and my workpiece. When I use a bit made for metal, I get smoother holes, less damage to the surface, and less wear on my drill. This saves me time, money, and frustration because I do not have to keep replacing broken bits or fixing mistakes.
Another reason I always choose metal drill bits is control. They give me better precision, especially when I need clean holes for screws, bolts, or fittings. For me, that makes a big difference in the final result, whether I am working on a small repair or a larger project.
My Buying Guides on Drill Bits For Drilling Metal
What I Look for First
When I buy drill bits for drilling metal, I first check whether they are made for metal specifically. In my experience, the wrong bit can overheat quickly, wear out fast, or even damage the surface. I always look for bits that mention steel, iron, aluminum, or stainless steel compatibility.
Material of the Drill Bit
The material matters a lot to me. Here’s what I usually consider:
- High-Speed Steel (HSS): Good for general metal drilling and affordable.
- Cobalt Drill Bits: My top choice for harder metals like stainless steel because they resist heat better.
- Titanium-Coated Bits: I like these for added durability, though I know the coating can wear off over time.
- Carbide Bits: Best for very hard materials, but I handle them carefully because they can be more brittle.
Bit Type and Shape
I pay attention to the shape of the tip because it affects how easily the bit starts drilling. A sharp split-point tip helps me reduce walking on metal surfaces. For precision work, I prefer bits that start cleanly without needing too much center punching.
Size Range
I always think about what sizes I need before buying. If I work on different projects, I prefer a set with multiple sizes instead of a single bit. That way, I’m prepared for small pilot holes as well as larger holes.
Durability and Heat Resistance
Metal drilling creates heat, so I look for bits that can handle it. In my experience, bits with strong heat resistance last longer and stay sharper. If I’m drilling harder metals, I usually choose cobalt or high-quality HSS bits.
Shank Compatibility
I make sure the shank fits my drill properly. Most of the time, I use standard round shanks, but sometimes I prefer hex shanks because they grip better and reduce slipping. This is especially useful when I’m working with a cordless drill.
Coating and Finish
I often compare coatings before buying:
- Black Oxide: Helps with corrosion resistance and slight heat reduction.
- Titanium Nitride: Improves surface hardness and reduces friction.
- Uncoated Bits: Sometimes I choose these for lower cost, especially if I only need them occasionally.
Brand Reputation
I trust brands that are known for consistent quality. In my experience, a reliable brand usually means better cutting performance and longer life. I also read reviews to see how the bits perform on real metal projects.
Price vs. Value
I don’t always choose the cheapest option. Instead, I look at value. A slightly more expensive bit set can save me money in the long run if it lasts longer and performs better. For occasional use, I may buy a budget set, but for regular work, I invest in better quality.
My Final Buying Tip
If I had to choose just one thing, I’d pick the drill bit based on the type of metal I plan to drill most often. For soft metals, good HSS bits are usually enough. For harder metals, I prefer cobalt. Matching the bit to the job has always given me the best results.
Final Thoughts
In my experience, choosing the right drill bit for drilling metal makes a big difference in both performance and results. I’ve found that high-quality materials, the correct bit type, and proper speed all help create cleaner holes and extend tool life. My key takeaway is to match the bit to the metal and work carefully for the best outcome.
Author Profile
-
I’m Nate Corwin, an Electronics Lab Technician in Columbus, Ohio, with a degree in Electrical Engineering Technology. Most of my working days involve test equipment, tools, components, troubleshooting, and the small details that decide whether a product is genuinely useful.
Away from the bench, I restore the occasional old radio, wander flea markets, cycle when the weather cooperates, and keep far too many switches and connectors that might be useful someday.
At AR Circuits, I write practical reviews and straightforward guides for people who want to understand electronics without turning every purchase into a complicated project.
Latest entries
- September 13, 2026Personal RecommendationsI Tested Swanson Pumpkin Seed Oil: My Honest Review of Its Benefits, Quality, and Results
- September 13, 2026Personal RecommendationsI Tested a Pole Baffle for Squirrels and It Finally Kept My Bird Feeder Safe
- September 13, 2026Personal RecommendationsI Tested Brass Legs for Sofa: The Stylish Upgrade That Transformed My Living Room
- September 13, 2026Personal RecommendationsI Tested the Best Fall and Winter Dresses for Cozy, Chic Cold-Weather Style