Ever tried to drill a hole in metal and ended up with a dull bit, a mangled piece of metal, or worse, a broken drill bit? It’s a frustrating experience that many DIYers and even professionals face. Choosing the right drill bit for metal isn’t just about picking a sharp piece of steel; it’s about understanding the materials you’re working with and the tool that will get the job done cleanly and efficiently.
The world of drill bits for metal can be confusing. There are so many types, made from different materials, and designed for specific jobs. Trying to figure out which one is best for your project can feel like a puzzle. You want a bit that cuts smoothly, lasts a long time, and doesn’t cost too much. Getting it wrong can lead to wasted time, damaged materials, and a lot of annoyance.
In this post, we’ll cut through the confusion. We’ll explore the different kinds of drill bits for metal, explain what makes them special, and help you understand how to pick the perfect one for your needs. By the end, you’ll have the knowledge to confidently select drill bits that will make your metalworking projects easier and more successful.
Our Top 5 Drilling Bits For Metal Recommendations at a Glance
Top 5 Drilling Bits For Metal Detailed Reviews
1. DEWALT Drill Bit Set
Rating: 9.3/10
Tackle any drilling job with confidence using the DEWALT DWA1184 14-Piece Drill Bit Set. This versatile set is designed for professionals and DIYers alike, offering the durability and precision you need for projects in plastic, wood, and metal. From building furniture to hanging shelves, these bits are built to perform.
What We Like:
- The 135-degree split point tip helps the bit start quickly and prevents it from “walking” or sliding on the material.
- Made from High Speed Steel, these bits are tough enough for various materials like plastic, wood, and metal.
- The tapered web design makes the bits extra strong and resistant to breaking, even under pressure.
- A black and gold coating protects the bits from rust and wear, so they last longer.
- The 3-flat shank fits securely in your drill’s chuck, stopping it from spinning out.
- Size markings on each bit let you find the right size fast.
What Could Be Improved:
- While the set is durable, some users might prefer a bit more variety in larger sizes for heavy-duty tasks.
- The case, though functional, could be more robust for frequent transport.
This DEWALT drill bit set offers excellent value and performance for a wide range of drilling needs. You can trust these bits to get the job done right.
2. toolant Cobalt Drill Bit Set for Metal and Steel (Pro)
Rating: 9.1/10
Tackle tough metal drilling jobs with confidence using the TOOLANT Cobalt Drill Bit Set for Metal and Steel (Pro). This 21-piece set is built for serious work, featuring drill bits coated with Titanium Aluminum Nitride (TiAlN). This special coating makes the bits super hard and resistant to heat, so they cut through metal quickly and stay sharp for a long time. The unique bullet point tip helps the drill bit start exactly where you want it, preventing it from slipping and giving you clean, precise holes every time. This set is perfect for working with hardened metal and stainless steel, making it a great addition to any pro’s toolkit.
What We Like:
- The Titanium Aluminum Nitride (TiAlN) coating makes the drill bits incredibly hard and heat-resistant, allowing for faster drilling and longer-lasting sharpness.
- The bullet point tip is sharp and self-centering, which means no more drill bit wandering and more accurate holes.
- The set includes a wide range of sizes from 1/16″ to 1/2″, with duplicates of smaller sizes for common tasks.
- These bits are specifically engineered to handle demanding jobs, especially with hardened metal and stainless steel.
- TOOLANT offers a 90-day warranty, providing peace of mind with a full refund or replacement if you’re not satisfied.
What Could Be Improved:
- While the set is designed for pro use, the price point might be a consideration for casual DIYers.
- The case, while functional, could be more robust for frequent transport or heavy-duty workshop environments.
Overall, the TOOLANT Cobalt Drill Bit Set Pro delivers excellent performance for metalworking. It’s a reliable choice for anyone needing to drill accurately through tough materials.
3. MACXCOIP Cobalt Drill Bit Set
Rating: 9.3/10
Tackle tough jobs with the MACXCOIP Cobalt Drill Bit Set. This 13-piece kit features M35 High Speed Steel drill bits, perfect for drilling into hardened metal, stainless steel, cast iron, wood, and plastic. The set comes in a handy storage case, keeping your bits organized and ready to go.
What We Like:
- Versatile Sizes: The set includes 13 different drill bit sizes from 1/16″ to 1/4″, so you have the right bit for almost any project.
- Durable M35 Cobalt: These bits are made from M35 cobalt, which makes them strong and sharp. They can handle hard materials like stainless steel and cast iron with ease.
- Fast and Efficient Drilling: The 135-degree point tip and twist design help the bits cut quickly. They also have a self-centering tip to prevent slipping and remove chips faster.
- Sharp and Precise: The hardened and polished inserts ensure sharp, precise cuts without wobbling, giving you clean holes every time.
- Organized Storage: The included index storage case keeps all the drill bits neatly sorted and easy to find.
What Could Be Improved:
- While the set is great for many materials, very heavy-duty or extremely hardened metals might require specialized bits.
This MACXCOIP drill bit set is a reliable choice for DIYers and professionals alike. It offers excellent performance and organization for your drilling needs.
4. ZELCAN 10 Sizes Titanium Step Drill Bit
Rating: 8.7/10
Tired of switching drill bits for different hole sizes? The ZELCAN 10 Sizes Titanium Step Drill Bit set is here to simplify your projects. This versatile tool lets you drill multiple hole sizes with just one bit. It’s made from strong high-speed steel and has a titanium coating. This means it cuts through various materials like a champ. It’s perfect for anyone who likes doing DIY projects or for electricians needing reliable tools.
What We Like:
- Made from durable High-Speed Steel (HSS) for a longer lifespan.
- Titanium coating provides excellent resistance to heat, corrosion, and rust.
- The revolutionary tri-flatted shank prevents slipping in your drill’s chuck.
- Two-flute design helps clear out chips quickly, keeping your drilling smooth.
- Automatically deburrs holes as you drill, leaving a clean finish.
- Offers 10 different step sizes, from 1/4 inch to 1-3/8 inches, covering many common needs.
- Great for drilling into sheet metal, plastic, wood boards, and softer metals like aluminum and copper.
What Could Be Improved:
- Not suitable for drilling through harder metals like steel.
This step drill bit set is a fantastic addition to any toolbox. It makes drilling different sized holes much easier and faster.
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
Rating: 9.3/10
Tackle tough metalworking projects with the M35 Cobalt Drill Bit Set. This 20-piece kit features high-speed steel bits infused with cobalt, making them super strong and durable. They’re designed to cut through hardened metals like stainless steel and cast iron with ease, lasting up to 12 times longer than regular drill bits. The set includes a handy storage case to keep everything organized.
What We Like:
- Made with M35 Cobalt Steel for extra hardness and durability.
- Cuts through tough metals like stainless steel and cast iron.
- Lasts much longer than standard drill bits.
- Precise 135° split point prevents the bit from slipping.
- Comes with a convenient storage case to keep bits organized.
- Includes a good range of sizes from 1/16″ to 1/2″.
What Could Be Improved:
- Not suitable for drilling glass or ceramic.
- Requires careful control of speed, pressure, and heat when drilling.
This drill bit set is a solid choice for anyone needing to drill into hard materials. It offers great performance and longevity for its price.
Choosing the Right Drilling Bits for Metal
Drilling holes in metal can seem tricky, but having the right drill bit makes it a breeze. This guide will help you pick the best drill bits for your metalworking projects.
Key Features to Look For
When you’re shopping for drill bits for metal, several things matter.
1. Material
Drill bits are made from different strong materials. The material affects how well the bit cuts and how long it lasts.
- High-Speed Steel (HSS): This is a common and affordable choice. HSS bits work well for most metals. They can handle moderate heat.
- Cobalt Steel: Cobalt bits are tougher than HSS. They have cobalt added to them, making them stronger and more heat-resistant. These are great for drilling hard metals like stainless steel.
- Carbide (Tungsten Carbide): Carbide bits are the hardest and most durable. They are best for very hard metals and high-volume drilling. They are usually more expensive.
2. Coatings
Some drill bits have special coatings. These coatings make the bits even better.
- Titanium Nitride (TiN): This gold-colored coating makes the bit harder and reduces friction. It helps bits last longer and cut faster.
- Black Oxide: This coating provides some corrosion resistance and helps bits run cooler. It’s a good option for general-purpose drilling.
- Cobalt Coatings: Similar to cobalt steel, these coatings add hardness and heat resistance.
3. Flute Design
The flutes are the spiral grooves on the drill bit. They help clear away metal chips.
- Standard Flutes: Good for general use.
- Deep Flutes: Help clear out more material, which is useful for drilling deeper holes or in softer metals.
4. Point Angle
The point angle is the tip of the drill bit.
- 118-degree point: This is a common angle. It’s good for softer metals like aluminum and mild steel.
- 135-degree point: This sharper angle is better for harder metals like stainless steel. It helps prevent the bit from “walking” or wandering when you start drilling.
Factors That Improve or Reduce Quality
The quality of a drill bit affects its performance.
- Good Quality: Bits made from high-quality materials like cobalt and with good coatings will last longer. Precise manufacturing also makes a difference. Sharper bits cut cleanly.
- Lower Quality: Cheaply made bits might be made from softer steel. They can dull quickly. Poorly ground bits can make drilling difficult and create rough holes.
User Experience and Use Cases
How you use your drill bits matters.
- For Homeowners and DIYers: HSS bits with titanium coating are usually a great choice. They are affordable and work well for common tasks like hanging shelves or assembling furniture.
- For Metalworkers and Professionals: Cobalt or carbide bits are essential for drilling into tough metals like hardened steel or stainless steel. They handle frequent use and high heat.
- Drilling Thin Metal: Use a sharp bit with a slower speed. A 135-degree point angle can help.
- Drilling Thick Metal: Use a good quality bit, like cobalt. Apply steady pressure and use cutting fluid to keep the bit cool.
Frequently Asked Questions (FAQ)
Q: What is the best drill bit material for stainless steel?
A: Cobalt drill bits are best for stainless steel because they are harder and resist heat well.
Q: Do I need to use cutting fluid when drilling metal?
A: Yes, using cutting fluid (or oil) helps keep the drill bit cool. It also makes drilling easier and helps the bit last longer.
Q: What does the gold coating on drill bits mean?
A: The gold coating is usually titanium nitride (TiN). It makes the bit harder and reduces friction, allowing it to cut faster and last longer.
Q: Can I use regular drill bits for metal?
A: You can use regular High-Speed Steel (HSS) bits for softer metals. For harder metals, HSS bits will dull quickly.
Q: How do I prevent a drill bit from “walking” when starting a hole?
A: Use a drill bit with a 135-degree point angle. You can also start by making a small dimple in the metal with a center punch before drilling.
Q: How long should drill bits last?
A: The lifespan of a drill bit depends on its material, coating, how it’s used, and the type of metal being drilled. High-quality bits used correctly can last for many holes.
Q: What is the difference between twist drill bits and step drill bits?
A: Twist drill bits are the most common and have spiral flutes. Step drill bits have a cone shape with multiple diameters and are good for drilling different-sized holes in thin metal without changing bits.
Q: Should I use a high or low speed when drilling metal?
A: Generally, you should use a slower speed for harder metals and a faster speed for softer metals. This helps prevent overheating and bit damage.
Q: What is a drill bit set?
A: A drill bit set is a collection of different-sized drill bits, usually all made of the same material and with the same design. They are convenient for having a range of sizes for various jobs.
Q: How do I clean and store my drill bits?
A: After use, wipe your drill bits clean to remove metal shavings and cutting fluid. Store them in a dry place, like their original case, to prevent rust and damage.
In conclusion, every product has unique features and benefits. We hope this review helps you decide if it meets your needs. An informed choice ensures the best experience.
If you have any questions or feedback, please share them in the comments. Your input helps everyone. Thank you for reading.
Hi, I’m Tom Scalisi, and welcome to The Saw Blog! I started this blog to share my hands-on experience and insights about woodworking tools—especially saws and saw blades. Over the years, I’ve had the chance to work with a wide range of tools, and I’m here to help both professionals and hobbyists make informed decisions when it comes to selecting and using their equipment. Whether you’re looking for in-depth reviews, tips, or just advice on how to get the best performance out of your tools, you’ll find it here. I’m excited to be part of your woodworking journey!