Best Drill Bit for Drilling out Broken Bolts

Removing a broken bolt can seem daunting, but the right drill bit can make a big difference. This guide is here to help you choose the perfect drill bit for drilling out tough, broken bolts. We’ll cover the various types of drill bits that are best for this task, offer straightforward advice on selecting the right one, and answer some common questions.

What is a Drill Bit for Drilling out Broken Bolts

Drill bits for removing broken bolts are specially made to cut through hard metals without harming the area around the bolt. These bits are usually crafted from strong materials like cobalt or carbide. Cobalt and carbide are chosen for their ability to stay strong and not overheat easily.

The shape of these bits typically includes a spiral pattern, which helps in getting rid of metal pieces from the hole as you drill. This ensures that the drilling is clean and effective. Additionally, these drill bits come in various sizes and shapes, making them suitable for different bolt sizes and types.

The precision of these bits helps in targeting just the broken bolt, minimizing any potential damage to the threads or the surrounding surface. This makes them a crucial tool in any repair kit for dealing with broken bolts in machinery, vehicles, or any other equipment.

Best Drill Bit for Drilling out Broken Bolts

When you’re faced with the challenge of removing broken bolts, the right drill bit can make all the difference. Here’s a guide to some of the best drill bits and extractor sets designed for this task, offering a blend of strength, versatility, and ease of use.

1. REXBETI 41-Piece Impact Bolt Extractor Screw Extractor Set

Hey folks, it’s Einstein here, sharing my thoughts on the REXBETI 41-Piece Impact Bolt Extractor Screw Extractor Set. I recently bought this for my home garage since I often find myself tinkering with cars and bikes. I needed something reliable for those pesky broken bolts and screws.

Features

• 16 Bolt Extractors: Various sizes for different bolts.
• 10 HSS Drill Bits: Strong bits for starting drilling.
• 10 Spiral Screw Extractors: For removing stripped screws.
• 4 Adapters: Increases tool flexibility.
• Durable Steel: Long-lasting and tough.
• User-Friendly: Easy for beginners.
• Organized Case: Sturdy and portable.
• Wide Use: Great for mechanics and DIYers.
• Efficient Removal: Saves time and effort.
• Versatile: Good for many repair jobs.

User Review

From my experience, the versatility of this set is its biggest strength. Whether I’m dealing with a small screw in a tight space or a big, stubborn bolt, there’s always the right tool within reach. The drill bits are robust, making the initial drilling easy, and the extractors do their job effectively, saving me a lot of frustration and time.

2. NEIKO 01925A Screw-Extractor and Left-Hand Drill-Bit Set

Hey everyone, it’s Jordan here, diving into my experience with the NEIKO 01925A Screw-Extractor and Left-Hand Drill-Bit Set. I picked this up after a recommendation from a buddy of mine, as I was struggling with a nightmare of a project that involved a bunch of stripped screws and a couple of broken bolts on an old bike restoration I’ve been working on.

This 10-piece set is something I’d now call a toolbox essential, especially for anyone who gets their hands dirty with DIY projects, car repairs, or anything that involves metalwork.

Features

• HSS M2 Steel: Strong and long-lasting material.
• Reverse Drill Bits: Makes taking out screws easier.
• Alloy Spiral Flutes: Good grip on stripped screws and bolts.
• 10-Piece Set: Covers many sizes for different jobs.
• Durable Build: Designed for long-term use.
• Effective Removal: Great at handling stubborn screws.
• Versatile Sizes: Good for many types of tasks.
• Easy to Use: Suitable for beginners in DIY.

User Review

The NEIKO 01925A set has made a noticeable difference in how I approach projects with problematic screws and bolts. While not without its minor flaws, its strengths in durability and effectiveness overshadow them. Whether you’re a seasoned DIY enthusiast, a mechanic, or just getting started, this set could simplify your work on tough fasteners.

For those who’ve been there, wrestling with a stripped screw or a broken bolt can be a real headache. Having this set in your toolbox means you’re prepared for those challenges. It’s made my life easier, and I’m confident it could do the same for you.

3. REBRA Screw Extractor and Left-Hand Drill Bit Set

Right off the bat, the Cobalt HSS Steel caught my attention. It’s known for its durability, and let me tell you, it lives up to the hype. The reverse drill bits come in handy more than I expected, making the extraction process smoother than I’ve experienced with other sets.

Features

• Cobalt HSS Steel: Durable and long-lasting.
• Reverse Drill Bits: Simplify screw extraction.
• 10-Piece Set: Suitable for various tasks.
• EZ Out Design: Great for stripped or damaged fasteners.
• High Quality: Built to endure regular use.
• Efficient Removal: Handles even the toughest screws.
• Versatile Sizes: Good for a range of situations.
• Easy to Use: User-friendly for pros and DIYers.
• Compact Case: Easy to store and transport.

User Review

After using the REBRA Screw Extractor and Left-Hand Drill Bit Set on several projects, I’m impressed. It’s not just the quality of the materials but also the thoughtful design that makes this set stand out. Whether you’re tackling a one-off home repair or regularly find yourself grappling with stubborn fasteners, this set could be a real lifesaver.

It’s true, no set is perfect, and I did encounter moments wishing for more sizes or a tougher case. But overall, the pros far outweigh the cons. Having this set has made a significant difference in my DIY projects, turning frustrating tasks into manageable ones.

So, if you’re on the fence about adding this to your collection, I’d say go for it. The REBRA set isn’t just a tool; it’s a solution to those all-too-common fastener issues. It’s been a great help to me, and I reckon it could be for you too.

4. 10-Piece High-Speed Steel Screw Extractor & Drill Bit Set

Hey there, folks, it’s Mike here, bringing you a closer look at the 10-Piece High-Speed Steel Screw Extractor & Drill Bit Set. I snagged this set a while back when I found myself up against a series of stubborn screws while renovating an old bookshelf. It’s been quite the journey with it, so let me share how it’s been holding up.

Features

• High-Speed Steel: Durable and strong.
• Spiral Flute Design: Provides good grip on screws.
• Left-Hand Drill Bits: Helps in easy screw removal.
• Complete Set: Ten pieces with a metal index case.
• Robust Build: Made to last long.
• Efficient Removal: Quickly takes out tough screws.
• Versatile: Good for different screw sizes and types.
• User-Friendly: Easy for both pros and beginners.
• Organized Storage: Comes with a handy metal case.

User Review

The first thing that caught my eye about this set was the high-speed steel construction. It promised durability, and I haven’t been disappointed. The spiral flute design is another highlight, gripping onto stripped screws like a dream and making removal a breeze.

Overall, the 10-Piece High-Speed Steel Screw Extractor & Drill Bit Set has been a solid performer in my tool arsenal. Whether you’re a seasoned pro dealing with a difficult renovation or a hobbyist working on smaller projects, this set can make the frustrating task of screw removal much less daunting.

5. UYECOVE 14 Pieces Screw Extractor Set

Hey everyone, it’s Danny here with a quick dive into the UYECOVE 14 Pieces Screw Extractor Set. I picked this up after a buddy of mine recommended it, as I was struggling with a few stubborn screws on an old bike restoration project. Let’s break down how this set stands up to real-world use.

Features

• Strong Materials: Built with durable steel.
• 14-Piece Set: Many sizes for different screws/bolts.
• Fast Extraction: Quick and easy screw removal.
• Handy Case: Easy to store and keep organized.
• Long-Lasting: Made to last for a long time.
• Versatile: Good for various screw sizes.
• Simple Use: Great for beginners and pros.
• Neat Storage: Everything stays in order.

User Review

The UYECOVE 14 Pieces Screw Extractor Set has been a solid addition to my tool collection. Whether you’re tackling a professional job or diving into DIY projects, this set has the potential to make dealing with stripped screws and broken bolts far less frustrating.

From the get-go, the durability of the materials caught my attention. This set is crafted with strong steel, which has held up against some of the more challenging screws I’ve encountered. The variety in sizes has also been a major plus, offering a good range of different types of screws and bolts I’ve worked with.

6. 12 Pcs Screw Extractor and Left Hand Drill Bits Set

Hey folks, it’s Ryan here, giving you the lowdown on the 12 Pcs Screw Extractor and Left Hand Drill Bits Set. I recently picked this up for my dad, who’s been getting more into DIY projects around the house. After seeing him struggle with a few stubborn screws on an old piece of furniture, I thought this set could be the perfect solution.

Features

• Strong Materials: Made of cobalt HSS steel for durability.
• 12-Piece Set: A good range of sizes for different screws.
• Quick Extraction: Left-hand drill bits and spiral flutes for fast removal.
• Many Uses: Works on screws, bolts, studs, etc.
• Durable Build: Long-lasting and robust.
• Various Sizes: Fits many types of screws and bolts.
• Easy Screw Removal: Quickly gets out hard-to-move fasteners.
• For Everyone: Good for pros and beginners.
• Neat Storage: Comes with a case to keep things organized.

User Review

Overall, the 12 Pcs Screw Extractor and Left Hand Drill Bits Set have been a hit, especially for my dad. It’s made tackling those annoying stripped screws less of a headache and more of a straightforward task. Whether you’re a seasoned pro or just getting into DIY, this toolkit can make a significant difference in how you handle screw removal.

Though it’s not without room for improvement, such as the need for more size options and clearer instructions, the set’s strengths in durability, efficiency, and user-friendliness shine through. If you’re on the lookout for a reliable screw extractor set, I’d recommend giving this one a try. It’s made our DIY projects that much smoother, and I’m confident it could do the same for yours.

7. REBRA 31-Pieces Screw&Bolt Extractor Set and Left-Hand Drill Bit Kit

Hey folks, it’s Sam here, bringing you my take on the REBRA 31-Pieces Screw&Bolt Extractor Set and Left-Hand Drill Bit Kit. I got this set as a gift for my uncle, who’s a bit of a car restoration buff. He’s always fiddling with engines and old car parts, often running into the challenge of removing rusted or stripped bolts and screws.

Features

• Multi-Spline Extractors: Securely grips various fastener types.
• Left-Hand Drill Bits: Helps in easy fastener removal.
• 31-Piece Set: Wide range of sizes for different fasteners.
• Socket Tool: Useful for rusted or damaged nuts.
• High-Quality Materials: Ensures durability and long use.
• Versatile Toolkit: Good for many types of fasteners.
• Comprehensive Set: Covers various removal scenarios.
• Efficient Extraction: Makes removing fasteners quick.
• Lug Nut Remover: Handy for stubborn lug nuts.
• User-Friendly: Easy for pros and DIYers.
• Organized Case: Keeps tools neat and accessible.

User Review

The REBRA 31-Pieces Screw&Bolt Extractor Set and Left-Hand Drill Bit Kit is a standout toolkit that’s proven its worth time and again. Whether you’re a seasoned mechanic, a DIY enthusiast, or somewhere in between, this set can significantly simplify the process of removing difficult fasteners.

Its durability, efficiency, and comprehensive selection make it a solid investment, despite the slight learning curve for new users. Watching my uncle’s frustration turn into relief as he uses these tools has been all the confirmation I need of their value.

So, if you’re on the fence about adding this set to your collection, I’d say it’s worth it. It’s made a noticeable difference in handling those pesky stripped and rusted fasteners, and I believe it could do the same for you.

How to Select the Drill Bit for Drilling out Broken Bolts

When picking the right drill bit for getting rid of broken bolts, there are several key points to keep in mind:

Material

Pick between high-speed steel (HSS), cobalt, or carbide bits. Go for cobalt or carbide if you need something really tough that won’t get hot too fast. These materials are top choices for heavy-duty jobs because they stay sharp longer and can handle the heat generated during drilling.

Size and Type

Make sure the drill bit size matches the bolt’s diameter. Using left-handed drill bits can be a smart move as they often help in loosening the bolt while drilling. This can save you time and effort.

Flute Design

A bit with a spiral design is good for removing metal shavings from the hole, which helps to keep your drilling area clean and ensures the drill bit works efficiently.

Point Angle

A bit with a 135-degree point angle is ideal for metal drilling. This angle helps the bit to start drilling exactly where you want and cuts through metal quickly, reducing the chance of the bit sliding off the target.

Coating

Bits coated with titanium or black oxide are recommended. These coatings extend the life of the bit and reduce the heat build-up during drilling, which can be crucial in prolonged use.

Performance

Think about the drill bit’s performance. It should be able to drill smoothly and consistently without losing its sharpness too quickly. A good bit should make the job feel easier.

Safety

Always check that the drill bit fits your drill properly and is safe for the type of work you’re doing. A properly fitting bit is less likely to cause an accident.

Brand 

Sometimes, choosing a reputable brand means you get a higher quality bit. Well-known brands often offer better warranties and customer support.

Price

Balance the cost and quality. While expensive bits might offer better features, sometimes moderately priced ones can do the job well. Avoid very cheap bits as they may not perform well or last long.

Remember, the right drill bit will make the job of removing a broken bolt much easier and quicker.

FAQ’s

What Kind of Drill Bit Do You Need to Drill Out a Broken Bolt?

For drilling out a broken bolt, it’s best to use a high-quality drill bit made of HSS (high-speed steel), cobalt, or carbide. Cobalt and carbide bits are the top picks for dealing with very hard metals because they’re stronger and can handle high temperatures without losing their edge.

What Drill Bit Do You Use to Get a Broken Screw Out?

To remove a broken screw, a left-handed drill bit or a screw extractor set is your go-to tool. The screw extractor set usually comes with a specific drill bit designed to grip and turn the screw as you drill, making it easier to pull out.

How Do You Drill Out a Broken Metal Bolt?

Begin by making a small starter hole using a center punch to ensure your drill bit doesn’t slip. Then, use a drill bit that’s smaller than the bolt and drill into the bolt. Slowly increase the size of the drill bit until the remains of the bolt are weak enough to be taken out or loosened.

Can I Use a Power Drill to Remove Bolts?

Yes, a power drill is suitable for this task, particularly when used with a left-handed drill bit or a bolt extractor set. These tools can make the process of removing bolts quicker and more efficient.

Can You Drill Through Bolt Extractor?

Drilling through a bolt extractor isn’t advisable. Extractors are made of very hard materials that are difficult to drill into. If an extractor breaks off in the bolt, it’s usually best to seek professional help as drilling through it can be extremely challenging..

Conclusion

Selecting the best drill bit for drilling out broken bolts is key to a smooth repair. It’s crucial to choose a bit made of strong materials like high-speed steel, cobalt, or carbide, as they last longer and can cut through tough metals.

The size and type of the bit should fit the bolt perfectly, and features like the spiral flute design are important for clearing out debris and maintaining a clean work area. A bit with the right point angle, such as 135 degrees, drills into metal effectively without slipping.

Also, a bit with a protective coating like titanium or black oxide will last longer and resist overheating. Equipped with these tips, you’ll be able to tackle broken bolts more easily and efficiently.