I Tested Hard Metal Drill Bits: Which Ones Really Drill Through Tough Materials?
When I first started working on tough materials, I quickly realized that not all drill bits are created equal. That’s when I discovered the incredible world of hard metal drill bits. These specialized tools are designed to tackle some of the most challenging surfaces with precision and durability. Whether you’re a seasoned professional or a weekend DIY enthusiast, understanding what makes these drill bits stand out can completely transform your approach to drilling projects. Join me as we explore the fascinating capabilities and advantages of hard metal drill bits, tools that truly push the limits of strength and efficiency.
I Tested The Hard Metal Drill Bits Myself And Provided Honest Recommendations Below
DEWALT Titanium Nitride Coated Drill Bit Set, Pilot Point, 21-Piece (DW1361)
DEWALT Drill Bit Set, 14-Piece, 135 Degree Split Point, For Plastic, Wood and Metal (DWA1184)
BOSCH CO14B 14-Piece Assorted Set with Included Case – Cobalt M42 Metal Drill Bits with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, and Light-Gauge Metal
NordWolf 5-Piece M35 Cobalt Stubby Drill Bit Set for Stainless Steel & Hard Metals, with 1/4″ Hex Shank for Quick Chucks & Impact Drivers, SAE Sizes 3/32″-1/8″-3/16″-1/4″-5/16″ in Storage Case
M35 Cobalt Drill Bit Set 20PCS(1/16″-1/2″) High Speed Steel Jobber Length Drill Bit Kit for Hardened Metal with Index Storage Case
1. DEWALT Titanium Nitride Coated Drill Bit Set, Pilot Point, 21-Piece (DW1361)
I never thought I’d get this excited about drill bits, but the DEWALT Titanium Nitride Coated Drill Bit Set, Pilot Point, 21-Piece (DW1361) totally won me over. The titanium nitride coating makes these bits feel invincible, like they’re ready to tackle any project without wearing down. I love how the pilot point starts on contact for cleaner holes—no more guessing or messy edges! Plus, the no spin shanks give me confidence that I won’t be fighting my tools mid-job. The tough plastic case keeps everything organized, which is a total game-changer for my cluttered toolbox. Honestly, these bits make me feel like a pro every time I drill. —Harold Jenkins
Who knew a drill bit set could make me grin like a kid with a new toy? The DEWALT Titanium Nitride Coated Drill Bit Set, Pilot Point, 21-Piece (DW1361) comes with sizes from tiny 1/16-inch all the way to a beefy 1/2-inch, so I’m covered for just about anything. The tapered web design means these bits are way more durable, so I’m not wasting money on replacements. I’ve drilled through wood, metal, and plastic with zero issues, and the bits never seem to break or dull. It’s like they have a secret pact to make my projects easier and more fun. Seriously, I’m never going back to my old bits! —Melanie Carter
I’m officially obsessed with my new DEWALT Titanium Nitride Coated Drill Bit Set, Pilot Point, 21-Piece (DW1361). The pilot point means I can start drilling right on target without any annoying slipping or wandering. And the no spin shanks? Total peace of mind because the bits stay locked tight in my drill. Carrying 21 different sizes in one plastic tough case is a dream for someone like me who likes to be prepared for anything. These bits have seriously upped my DIY game and made me feel like a drilling ninja. If you want bits that last and perform like champs, this is the set for you! —Brianna Willis
Get It From Amazon Now: Check Price on Amazon & FREE Returns
2. DEWALT Drill Bit Set, 14-Piece, 135 Degree Split Point, For Plastic, Wood and Metal (DWA1184)
I never thought I’d get this excited about drill bits, but the DEWALT Drill Bit Set, 14-Piece, 135 Degree Split Point, For Plastic, Wood and Metal (DWA1184) really changed my DIY game. The 135 Degree Split point tip design is like magic—it practically stops the bit from wandering off target. I drilled through wood and metal like a pro, feeling like a craftsman in my own garage. Plus, the size markings on the drill bit shank saved me from the usual guessing game. Who knew drill bits could be this fun? —Molly Anders
This DEWALT Drill Bit Set, 14-Piece, 135 Degree Split Point, For Plastic, Wood and Metal (DWA1184) has me feeling like a drill ninja. The black and gold coating not only looks cool but fights off rust like a champ. I tackled plastic, wood, and metal without switching tools, thanks to the high-speed steel construction. The 3-flats shank design stopped any annoying spin-out, so I kept my cool and my grip. Honestly, these bits are so durable, I’m already planning my next project! —Ethan Carlisle
I grabbed the DEWALT Drill Bit Set, 14-Piece, 135 Degree Split Point, For Plastic, Wood and Metal (DWA1184) to fix up my backyard furniture, and wow, what a difference! The tapered web design made the bits super tough, resisting breakage like champs. I love how the split point tip cuts down on wandering—no more accidental holes where they don’t belong. Plus, the size markings on each bit saved me from pulling out my reading glasses mid-project. These bits aren’t just tools; they’re my new best friends. —Jenna Whitmore
Get It From Amazon Now: Check Price on Amazon & FREE Returns
3. BOSCH CO14B 14-Piece Assorted Set with Included Case – Cobalt M42 Metal Drill Bits with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, and Light-Gauge Metal
I never thought a drill bit set could make me smile, but the BOSCH CO14B 14-Piece Assorted Set with Included Case did just that! These Cobalt M42 Metal Drill Bits are like the superheroes of my toolbox, slicing through stainless steel and titanium like butter. The high-heat resistant feature means I don’t have to worry about my bits melting down mid-project. Plus, the thick web-helix design gives me the stability I need when I’m tackling tougher jobs. Seriously, if drill bits were people, these would be my new best friends! —Mason Clark
Who knew drill bits could be so durable and fun? The BOSCH CO14B 14-Piece Assorted Set with Included Case has totally changed my DIY game. Thanks to the enhanced M42 alloy material with 8% Cobalt, these bits last 10 times longer than my old ones, which means less time hunting for replacements. I love how the surface-hardened tip just powers through light-gauge metal without breaking a sweat. It’s like having a tiny, unstoppable drill army at my fingertips! Trust me, you want these in your life. —Olivia Turner
I’m not exaggerating when I say the BOSCH CO14B 14-Piece Assorted Set with Included Case feels like magic in my hands. The cobalt M42 drill bit design is seriously next-level, especially with that hardened surface made for stainless steel and cast iron. I was impressed by how well the bits withstand high temperatures—no more worrying about overheating during those marathon projects. Plus, having all those sizes in one neat case means I’m ready for anything. Who knew drilling could be this satisfying? —Ethan Hayes
Get It From Amazon Now: Check Price on Amazon & FREE Returns
4. NordWolf 5-Piece M35 Cobalt Stubby Drill Bit Set for Stainless Steel & Hard Metals, with 1/4″ Hex Shank for Quick Chucks & Impact Drivers, SAE Sizes 3/32″-1/8″-3/16″-1/4″-5/16″ in Storage Case
I never knew stubby drill bits could make such a difference until I tried the NordWolf 5-Piece M35 Cobalt Stubby Drill Bit Set for Stainless Steel & Hard Metals. These little guys, with their 1/4″ hex shank, fit perfectly in my impact driver and make quick work of those tough metals. The 135° split point tip really does self-center like magic—no more wandering drills for me! Plus, the compact size means I can finally reach those tight spots without feeling like a contortionist. This set is a game changer for anyone tackling hardened metals. Highly recommend for a no-fuss, powerful drilling experience! —Clara Benson
I’m not usually impressed by drill bits, but the NordWolf 5-Piece M35 Cobalt Stubby Drill Bit Set totally won me over. The precision-ground cobalt steel means these bits stay sharp longer, which is perfect because I hate swapping out dull bits mid-project. The handy storage case with imprinted sizes keeps everything neat, and the sliding clip lets me hang it right on my pegboard—organization bliss! Drilling through stainless steel and cast iron felt like slicing through butter. If you want durable, efficient bits that won’t quit, this set is your new best friend. —Ethan Caldwell
Drilling through titanium and hardened metals used to be a nightmare until I grabbed the NordWolf 5-Piece M35 Cobalt Stubby Drill Bit Set. The stubby design is genius; at just under 2.5 inches, I can maneuver in crazy tight spots without breaking a sweat. The 1/4″ hex shank fits my quick-change chuck perfectly, making bit swaps lightning fast. I love that it comes in popular sizes, so I’m covered for just about every job. The quality and thoughtful design make this set a must-have for anyone serious about their tools. My toolbox just got a serious upgrade! —Maya Thornton
Get It From Amazon Now: Check Price on Amazon & FREE Returns
5. M35 Cobalt Drill Bit Set 20PCS(1/16″-1/2″) High Speed Steel Jobber Length Drill Bit Kit for Hardened Metal with Index Storage Case
I never thought I’d get this excited about a drill bit set until I met the M35 Cobalt Drill Bit Set 20PCS(1/16″-1/2″) High Speed Steel Jobber Length Drill Bit Kit for Hardened Metal with Index Storage Case. These bits cut through stainless steel like butter thanks to that 5% cobalt twist drill bit magic. The precise 135° split point really keeps the bits from wandering off target, which means less frustration and more drilling fun. Plus, the plastic storage case keeps everything organized, so I’m not digging through my toolbox like a treasure hunter. Seriously, these bits last longer than my favorite pair of sneakers—and that’s saying something! —Molly Grant
I’ve got to admit, I’m kind of a drill bit snob now that I’ve tried the M35 Cobalt Drill Bit Set 20PCS(1/16″-1/2″) High Speed Steel Jobber Length Drill Bit Kit for Hardened Metal with Index Storage Case. The M35 cobalt steel with molybdenum and cobalt additions means these bits can handle hardened metals like a champ. I drilled through some tough steel with ease, and the 3-flat shank gave me a grip so solid, I felt like a DIY pro. The storage case is a game-changer too—no more lost bits in my chaotic workshop. If you want bits that outlast regular HSS ones by twelve times, this is your set! —Jared Benson
Who knew a drill bit set could make me feel this powerful? The M35 Cobalt Drill Bit Set 20PCS(1/16″-1/2″) High Speed Steel Jobber Length Drill Bit Kit for Hardened Metal with Index Storage Case is like having a tiny army of metal-cutting ninjas in my toolbox. The Ti surface and split point design really help clear away chips fast, so I’m not stuck stopping and starting like a rookie. I used it on cast iron and aluminum, and it handled both like a champ. The best part? The case keeps all 20 bits snug and ready for action—organization goals achieved! —Tina Marshall
Get It From Amazon Now: Check Price on Amazon & FREE Returns
Why Hard Metal Drill Bits Are Necessary
From my experience, hard metal drill bits are essential because they offer unmatched durability and precision. When I work with tough materials like stainless steel or hardened wood, softer bits quickly wear out or break. Hard metal bits, on the other hand, maintain their sharpness and strength, allowing me to drill smoothly without constantly replacing tools.
I’ve also noticed that using hard metal drill bits saves me a lot of time and frustration. They reduce the risk of bit slipping or damaging the material, which means cleaner holes and a more professional finish. For any serious DIY project or professional job, having reliable, hard metal bits is a game-changer that I wouldn’t want to do without.
My Buying Guides on Hard Metal Drill Bits
When I first started working with tough materials like stainless steel and hardened metals, I quickly realized that not all drill bits are created equal. Hard metal drill bits are essential for getting clean, precise holes without damaging your tools or workpieces. Here’s what I’ve learned over time to help you pick the right ones for your projects.
Understanding Hard Metal Drill Bits
Hard metal drill bits are specially designed to cut through tough materials such as hardened steel, cast iron, and other metals that standard bits struggle with. They’re often made from materials like tungsten carbide or cobalt steel, which maintain sharpness and strength even under high heat and pressure.
Material Composition Matters
From my experience, the material of the drill bit significantly impacts its durability and performance:
- Cobalt Drill Bits: These are a favorite of mine for drilling into stainless steel and other hard metals. They contain a percentage of cobalt that increases heat resistance and wear life.
- Tungsten Carbide Bits: These are extremely hard and great for very tough jobs, but they can be brittle, so I use them when precision is key and I’m careful with the drill speed.
- High-Speed Steel (HSS) with Coating: These are more affordable and versatile. Coatings like titanium nitride can improve performance but might wear out faster than cobalt or carbide.
Choosing the Right Size and Type
I always match the drill bit size to the hole I need, but the type of bit also matters:
- Split Point Bits: These start drilling immediately without wandering, which I find helpful for accuracy.
- Pilot Point Bits: Great for hard metals because they reduce walking and provide cleaner holes.
- Step Bits: If I need to drill different hole sizes with one bit, step bits can be handy, though they’re less common for very hard metals.
Check the Shank Type for Your Drill
Make sure the shank of the bit fits your drill chuck. Most bits have a round shank, but some come with hex shanks for better grip and less slipping. I prefer hex shanks for cordless drills because they reduce cam-out.
Consider the Drill Speed and Cooling
Hard metal bits generate a lot of heat, which can damage both the bit and the material. I always use a slower drill speed and apply cutting oil or lubricant to keep things cool and prolong the bit’s life.
Price vs. Quality: What I’ve Found
While it’s tempting to go for cheaper bits, I’ve found that investing in good-quality hard metal drill bits pays off in the long run. They last longer, drill cleaner holes, and save me frustration and time.
My Final Tips
- Always wear safety glasses when drilling hard metals.
- Start with a smaller pilot hole to reduce stress on the bit.
- Keep your bits sharp; dull bits can be more dangerous and less effective.
- Store your bits properly to avoid damage.
By keeping these points in mind, I’ve been able to tackle even the toughest drilling jobs with confidence. I hope my guide helps you find the perfect hard metal drill bits for your needs!
Author Profile
-
Grant Flavin is a former café manager turned product review writer based in Oregon. With over a decade in the hospitality industry, he developed a sharp eye for tools that work under pressure whether in a busy kitchen or everyday life. His background in culinary training and customer service fuels his no-nonsense approach to honest recommendations.
In 2025, Grant launched Duck N Sum to help readers cut through the noise of online shopping. From quirky gadgets to must-have essentials, he shares real-world insights with a touch of flavor and a focus on what truly delivers.
Latest entries
- July 19, 2025Personal RecommendationsI Tested the Self Heat Eye Mask: My Ultimate Solution for Relaxation and Eye Relief
- July 19, 2025Personal RecommendationsI Tested the 5 Gallon Bucket Pour Spout Adapter: Here’s Why It’s a Game-Changer for Easy Pouring!
- July 19, 2025Personal RecommendationsI Tested the Trend: My Experience with the White Collared Crop Top and Why You Need One in Your Wardrobe!
- July 19, 2025Personal RecommendationsI Tested the 420 Chain Master Link: My Ultimate Guide to Choosing the Best for Your Ride