Ever tried to drill through steel and ended up with a dull bit and a scratched surface? It’s frustrating, right? Drilling into hardened steel can feel like an impossible task. This tough material is used in many things, from tools to car parts. Choosing the wrong drill bit can waste your time, money, and effort. You might even damage the steel or hurt yourself.
Finding the perfect drill bit for hardened steel isn’t easy. There are many types to pick from, and each one is different. You need to know about materials, coatings, and cutting speeds. Understanding these things is key to getting the job done right. Many people get confused and pick the wrong bit, leading to problems.
This post is your guide. We’ll break down everything you need to know about drill bits for hardened steel. You’ll learn about the best types, how to use them, and how to make them last. By the end, you’ll be confident in your ability to choose the right drill bit. You will be able to drill through hardened steel like a pro! Let’s get started and turn that frustration into success.
Our Top 5 Drill Bit To Drill Hardened Steel Recommendations at a Glance
Top 5 Drill Bit To Drill Hardened Steel Detailed Reviews
1. ArtyMaster Drill Bit Set
Rating: 9.4/10
The ArtyMaster Drill Bit Set is a 13-piece set of twist drill bits. These bits are made for tough jobs. They can drill into stainless steel, hardened steel, and cast iron. They can also work on plastic and wood. The set includes sizes from 1/16″ to 1/4″. The M35 high-speed steel with 5% cobalt makes these bits strong and long-lasting. They are built to resist heat and wear.
What We Like:
- The bits are made of high-quality M35 high-speed steel with cobalt. This makes them durable.
- The 135° split point design helps the bits start drilling quickly.
- The twist design removes chips easily.
- The set includes a full range of sizes for many projects.
- The case makes it easy to carry and store the bits.
What Could Be Improved:
- Some users might need more specialized sizes.
The ArtyMaster Drill Bit Set is a great choice for anyone needing strong and reliable drill bits. These bits are good for both professionals and DIY enthusiasts.
2. 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: 8.9/10
Need to drill through tough stuff? The M35 Cobalt Drill Bit Set is here to help! This set includes 20 drill bits made from strong M35 Cobalt Steel. They can cut through hardened metals like stainless steel and cast iron. This set comes with bits in various sizes, from 1/16 inch to 1/2 inch. A handy storage case keeps everything organized. Get ready to tackle your toughest projects!
What We Like:
- These drill bits are made from M35 Cobalt Steel. They are very strong.
- The bits can cut through hardened materials.
- The set includes many sizes.
- The split point design helps the bits stay in place.
- The storage case keeps bits organized.
What Could Be Improved:
- This set isn’t for glass or ceramic.
- Users need to control speed and pressure when drilling.
The M35 Cobalt Drill Bit Set is a great choice for anyone who works with metal. These bits are built to last and make tough jobs easier.
3. toolant Cobalt Drill Bit Set for Metal and Steel (Pro)
Rating: 9.1/10
The TOOLANT Cobalt Drill Bit Set Pro is made for drilling into metal and steel. This set has 21 drill bits. They are coated with titanium aluminum nitride (TiAlN). These drill bits are made to cut through hard materials. Each bit has a bullet point tip for accurate drilling. This set is perfect for tough jobs.
What We Like:
- The set includes 21 drill bits of different sizes.
- The TiAlN coating makes the bits very hard and heat-resistant. This helps them stay sharp.
- The bullet point tips help you drill accurately.
- The set is good for heavy-duty jobs.
- You get a 90-day warranty.
What Could Be Improved:
- We have no cons for this product.
This TOOLANT drill bit set is a great tool for drilling metal. It is a reliable set for both professionals and DIY enthusiasts.
4. NordWolf 5-Piece M35 Cobalt Stubby Drill Bit Set for Stainless Steel & Hard Metals
Rating: 9.3/10
The NordWolf 5-Piece M35 Cobalt Stubby Drill Bit Set is built to tackle tough jobs. These drill bits are made for drilling into stainless steel and other hard metals. They have a 1/4″ hex shank, which works with quick chucks and impact drivers. This set includes five popular SAE sizes: 3/32″, 1/8″, 3/16″, 1/4″, and 5/16″. The bits come in a handy storage case, making them easy to store and find.
What We Like:
- These drill bits are made of M35 cobalt steel. This makes them extra strong and last longer.
- The stubby design is great for tight spaces. They measure only 1.84 to 2.32 inches.
- The 135° split point tip helps the bits stay centered. This allows for fast and accurate drilling.
- You can use these bits on many different metals, including stainless steel, cast iron, and more.
- The 1/4-inch hex shank fits most drills and drivers.
- The storage case keeps the bits organized. It has sizes marked on it.
What Could Be Improved:
- The product description could benefit from more information on the specific applications where these bits excel.
Overall, the NordWolf drill bit set is a good choice for anyone who works with tough metals. The bits are durable and easy to use. The included storage case is a nice bonus.
5. DEWALT Titanium Nitride Coated Drill Bit Set
Rating: 9.2/10
The DEWALT Titanium Nitride Coated Drill Bit Set (DW1361) is a 21-piece set of drill bits. These bits are made to last. They have a titanium nitride coating. This helps them drill longer. The pilot point helps you start drilling easily. The set comes with many sizes. It includes bits from 1/16-inch to 1/2-inch. They come in a tough plastic case. This makes it easy to store and carry them.
What We Like:
- The titanium nitride coating makes the bits last longer.
- Pilot point design helps the bits start drilling easily.
- The bits start drilling on contact, making cleaner holes.
- No-spin shanks keep the bits secure in the drill.
- The tapered web design helps the bits from breaking.
- The set has a wide range of sizes.
- The tough plastic case keeps the bits organized.
What Could Be Improved:
- Some users may need more of certain sizes.
This DEWALT drill bit set is a good choice for many jobs. It’s a reliable set for both DIY projects and professional work.
Drill Bits for Hardened Steel: Your Buying Guide
Drilling into hardened steel can be tough. You need the right drill bit. This guide will help you choose the best one. It covers what to look for, what the bits are made of, and how to use them.
Key Features to Look For
You want a drill bit that can handle the job. Here are some important features:
- Tip Angle: The tip angle is how pointy the drill bit is. For hardened steel, you need a steeper angle. Look for bits with a 135-degree angle. This helps the bit stay centered and drill better.
- Flute Design: Flutes are the grooves on the drill bit. They remove the metal shavings as you drill. Good flutes help the bit cut faster and prevent overheating.
- Shank Type: The shank is the part you put in the drill. Most bits have a round shank. Some have a hex shank. Hex shanks are great because they don’t slip.
- Coating: Some bits have a special coating. This coating makes the bit last longer and drill better. Coatings like titanium nitride (TiN) are good choices.
Important Materials
The material of the drill bit is very important. Here are some common materials:
- High-Speed Steel (HSS): HSS is a common choice. It’s tough and can handle heat. HSS bits are a good starting point.
- Cobalt: Cobalt bits are even stronger than HSS. They can handle higher temperatures. They are great for harder steels.
- Carbide: Carbide bits are the toughest. They are very hard and can drill through almost anything. They are more expensive.
Factors That Improve or Reduce Quality
Some things make drill bits better or worse. Here’s what to watch out for:
- Heat Treatment: Good heat treatment makes the bit stronger. This lets the bit last longer.
- Sharpness: A sharp drill bit cuts better. Look for bits that are precisely ground.
- Brand Reputation: Some brands are known for quality. Research the brand before you buy.
- Price: Cheaper bits might not last. Invest in a good-quality bit. It will save you money in the long run.
User Experience and Use Cases
Using the right drill bit is important. Here’s how to get the best results:
- Use the Right Drill: You need a powerful drill. A drill with variable speed is a good choice.
- Start Slow: Begin drilling at a slow speed. This helps the bit start without slipping.
- Apply Pressure: Use steady pressure. Don’t force the bit. Let the bit do the work.
- Use Cutting Fluid: Cutting fluid helps cool the bit. It also makes drilling easier.
- Go Step-by-Step: For very hard steel, you might need to drill pilot holes. Then, use a larger bit.
Use Cases:
- Automotive Repair: Drilling into engine parts, chassis components, or other hardened steel parts during maintenance or repair.
- Metal Fabrication: Drilling holes in steel plates, beams, or other structural elements.
- Tool Making: Drilling into hardened steel for making molds, dies, or other tooling.
FAQ: Drill Bits for Hardened Steel
Here are some common questions about drill bits for hardened steel:
Q: What is hardened steel?
A: Hardened steel is steel that has been heated and then cooled quickly. This makes it very strong and hard.
Q: Why do I need a special drill bit?
A: Regular drill bits will not cut through hardened steel. They will dull or break. Special bits are designed to cut this tough material.
Q: What angle is best for drilling hardened steel?
A: A 135-degree angle is best. This helps the bit stay centered and cut well.
Q: What is the best material for drilling hardened steel?
A: Carbide is the best material. It is the hardest and most durable.
Q: What does TiN coating do?
A: TiN coating makes the bit harder and more resistant to heat. It also makes the bit last longer.
Q: How can I prevent my drill bit from overheating?
A: Use cutting fluid. Drill at a slow speed. Don’t force the bit.
Q: What if my bit breaks?
A: It’s okay. You need a new bit. Make sure you are using the right speed and pressure.
Q: Can I use a drill press?
A: Yes, a drill press is ideal. It provides more control and stability.
Q: How do I sharpen a drill bit?
A: You can use a drill bit sharpener or sharpen it by hand. It is better if you’re skilled with a grinding wheel.
Q: Where can I buy drill bits for hardened steel?
A: You can buy them at hardware stores, online retailers, and specialty tool stores.
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.