Choosing the best drill bits is crucial for any project, whether you’re a seasoned professional or a dedicated DIY enthusiast. The right set of drill bits can make the difference between a clean, efficient job and a frustrating, time-consuming one. With countless options available, finding a reliable and versatile set for drilling through various materials like wood, metal, and plastic can be challenging. Our comprehensive guide cuts through the clutter, presenting the top five drill bit sets that combine durability, precision, and value, ensuring you have the perfect tool for every task.
Quick Product Comparison
Our Top 5 Best Drill Bits Reviews – Expert Tested & Recommended
1. Amazon Basics Drill & Driver Multi Bit Set, Alloy Steel Wood Straight Drill Bits, for Metal, Wood…
The Amazon Basics Drill & Driver Multi Bit Set is an incredibly comprehensive collection, perfect for a wide range of tasks. This 100-piece set is crafted from durable alloy steel with a quenching treatment, ensuring exceptional wear resistance and longevity. It’s designed to handle drilling through metal, wood, plastic, and masonry, making it a versatile addition to any toolkit.
Key Features That Stand Out
- ✓ Comprehensive 100-piece set for diverse applications.
- ✓ Constructed from durable alloy steel with quenching treatment for enhanced wear resistance.
- ✓ Includes 52 drill bits, 8 nut sockets, a magnetic bit holder, and 4 hole saws.
- ✓ Suitable for drilling through metal, wood, plastic, and masonry.
Why We Recommend It
We recommend this set for its sheer versatility and robust construction. The extensive range of bits means you’re prepared for almost any drilling or driving task around the house or workshop. Its alloy steel build ensures that these bits can withstand regular use, offering great value for money and making it a top contender for the best drill bit set for general purposes.
Best For
This set is best for DIY enthusiasts and homeowners who need a single, all-encompassing solution for various household repairs and projects.
Pros and Cons
Pros:
- Extremely comprehensive set with 100 pieces.
- Durable alloy steel construction ensures longevity.
- Versatile for multiple materials including metal, wood, and masonry.
- Excellent value for the price.
Cons:
- Not ideal for heavy-duty professional use on very hard materials.
- Case organization could be improved.
Customer Reviews
Customer Review: “A Must-Have for Any DIY Enthusiast! I recently purchased this drill and driver bit set, and I’m incredibly impressed with the quality and versatility it offers. From tackling simple household repairs to more complex projects, this set has everything I need. The variety of drill bits and driver bits is fantastic, and they feel sturdy and reliable in use. Definitely a great buy!”
Customer Review: “Great all-around set for home projects. I bought this Amazon Basics set after realizing my old bits were dull. This one has so many sizes and types; I haven’t run into a situation where I didn’t have the right bit. The quality is solid for the price, especially for general wood and soft metal drilling.”
2. 1-1/8″ HSS M2 Jobber Drill Bit with 1/2″ Shank for Metals, Wood, and Plastic.
This 1-1/8″ HSS M2 Jobber Drill Bit with a 1/2″ shank is a standout for specific, larger drilling needs. Made from high-speed steel M2 material and finished with a durable gold oxide, it offers excellent sharpness and corrosion resistance. It’s perfectly suited for general-purpose applications, excelling in a wide range of materials from metals to wood and plastic.
Key Features That Stand Out
- ✓ Constructed from high-speed steel (HSS) M2 for superior hardness and wear resistance.
- ✓ Durable gold oxide finish provides corrosion resistance and reduced friction.
- ✓ Features a 1-1/8″ diameter and 1/2″ shank for robust drilling.
- ✓ Versatile for general purpose applications including metals, wood, and plastic.
Why We Recommend It
For those needing a high-quality, larger diameter drill bit, this HSS M2 Jobber bit is an excellent choice. Its robust construction and gold oxide finish ensure smooth drilling and extended tool life, particularly in demanding materials. It’s a reliable option when precision and durability are paramount for specific tasks, making it one of the best drill bits for general metalworking.
Best For
Ideal for users who frequently need to drill larger holes in a variety of materials, from softwoods to tougher metals, for general maintenance or specific hobby projects.
Pros and Cons
Pros:
- High-speed steel M2 material for strength and sharpness.
- Gold oxide finish enhances durability and corrosion resistance.
- Suitable for a wide range of materials.
- Robust 1-1/8″ diameter for larger holes.
Cons:
- Only a single bit, not a set.
- May not be ideal for extremely hardened or exotic metals.
Customer Reviews
Customer Review: “This is great. I needed a bit to put holes in my bowling ball for my interchangeable thumb. Bowling ball bits are so expensive and I thought let’s try it out even though I was told not to buy just any bit. This thing worked great and looks identical to the one the proshop uses at the bowling alley.”
Customer Review: “Solid performance for large holes. I’ve used this HSS M2 bit on aluminum sheets and some thick oak, and it cut through them cleanly and without much effort. The gold oxide coating really seems to help with heat dissipation. Very happy with its performance for the price.”
3. Crosstar M35 Cobalt Drill Bit Set, Titanium Coated for Hardened Steel, Stainless Steel, Cast Iron
The Crosstar M35 Cobalt Drill Bit Set is an excellent choice for tackling tougher materials without breaking the bank. This 21-piece set is forged from M35 cobalt steel, providing superior heat resistance and making it ideal for hardened steel, stainless steel, and cast iron. The TiAlN coating further enhances durability and reduces friction, contributing to its professional performance.
Key Features That Stand Out
- ✓ Made from premium M35 cobalt steel for enhanced heat resistance and strength.
- ✓ TiAlN coating reduces friction and extends bit life, especially in tough metals.
- ✓ Self-centering bullet point tip prevents bit wandering for precise starts.
- ✓ Optimized spiral flute design for efficient chip removal and reduced heat buildup.
- ✓ 21-piece set covers a comprehensive range of sizes for various tasks.
Why We Recommend It
For anyone regularly working with challenging materials like stainless steel or hardened steel, the Crosstar M35 Cobalt set offers professional-grade performance at an accessible price. Its design features, like the self-centering tip and efficient flutes, ensure a smooth and precise drilling experience, making it one of the best cobalt drill bits available for the budget-conscious user.
Best For
This set is best for fabricators, metalworkers, and serious DIYers who frequently work with hard metals and need reliable, heat-resistant drill bits without a premium price tag.
Pros and Cons
Pros:
- Excellent for drilling hardened metals due to M35 cobalt steel.
- TiAlN coating improves durability and reduces heat.
- Self-centering tip ensures precise, clean starts.
- Efficient chip removal prevents clogging.
Cons:
- While budget-friendly for cobalt, still an investment for casual users.
- Not designed for extremely high-speed drilling without proper lubrication.
Customer Reviews
Customer Review: “This cobalt drill bit set exceeded my expectations! The M35 cobalt steel construction and TiAlN coating make these bits incredibly durable and heat-resistant—perfect for drilling through stainless steel and cast iron without breaking a sweat. I’ve used them on multiple metal projects and they’ve held up brilliantly.”
Customer Review: “I’m super happy with this drill bit set. It has pretty much every size I could ever need, so I don’t have to worry about running out of the right bit. The case is a huge plus too — the orange color looks really nice and the material actually feels solid and durable.”
4. Best M35 Cobalt Drill Bit Set for Stainless Steel, Hard Metals, Cast Iron
This M35 Cobalt Drill Bit Set is engineered for high performance when drilling through the toughest materials. Featuring precision-ground jobber drill bits made from M35 cobalt steel, it delivers exceptional durability and extended tool life. Its specialized 135° split point and two-blade drill tip ensure perfect self-centering and rapid drilling, making it highly effective for professional applications.
Key Features That Stand Out
- ✓ M35 cobalt steel construction offers superior hardness and heat resistance.
- ✓ Precision ground jobber drill bits for extra durability and long life.
- ✓ Special 135° split point two-blade drill tip for perfect self-centering.
- ✓ Designed for fast and efficient drilling through challenging materials.
- ✓ Multi-purpose use for stainless steel, hard metals, cast iron, titanium, bronze, and aluminum.
Why We Recommend It
If you need reliable drill bits that can handle the most demanding jobs, this M35 Cobalt Drill Bit Set is an excellent investment. The combination of high-quality material, precision grinding, and an optimized tip design ensures clean, quick holes in even the hardest metals. It’s a top contender for those seeking premium performance in metal drill bits.
Best For
Ideal for professional tradespeople, welders, and serious enthusiasts who regularly drill into hardened steel, stainless steel, cast iron, or other tough alloys.
Pros and Cons
Pros:
- Exceptional durability and heat resistance from M35 cobalt steel.
- 135° split point prevents walking and allows fast drilling.
- Versatile for a wide range of very hard metals.
- Precision grinding ensures consistent quality and performance.
Cons:
- Higher price point compared to standard HSS bits.
- Requires proper drilling techniques (e.g., lower speed, lubricant) for optimal life.
Customer Reviews
Customer Review: “These cobalt bits are fantastic for stainless steel! I was struggling with regular bits, but this M35 set cut through thick stainless plate like butter. The self-centering point is a huge plus, no more skating. Highly recommend for any serious metal work.”
Customer Review: “Worth every penny for hard materials. I’ve used this set on cast iron and some tool steel, and they hold their edge incredibly well. The fast drilling action saves a lot of time and effort. Definitely a professional-grade set.”
5. DEWALT Titanium Nitride Coated Drill Bit Set, Pilot Point, 21-Piece
The DEWALT Titanium Nitride Coated Drill Bit Set is a reliable and popular choice, known for its performance and durability. This 21-piece set features titanium nitride coating, which reduces friction and extends the bit’s life. The innovative Pilot Point design ensures that each bit starts on contact, preventing walking and creating cleaner, more accurate holes from the outset.
Key Features That Stand Out
- ✓ Titanium Nitride (TiN) coating for increased durability and reduced friction.
- ✓ Patented Pilot Point tip starts on contact, preventing bit walking.
- ✓ Designed for cleaner, more accurate holes in various materials.
- ✓ 21-piece set provides a versatile range of common sizes.
- ✓ Optimal for wood, plastic, and general metal drilling.
Why We Recommend It
DEWALT is a trusted name in tools, and this titanium drill bit set lives up to its reputation. The TiN coating and Pilot Point design make for highly efficient and precise drilling, especially valuable when working on visible surfaces where clean holes are essential. It’s a fantastic all-around set for both hobbyists and professionals who prioritize accuracy and longevity in their drill bits.
Best For
This set is best for general construction, woodworking, and metal fabrication where clean, precise holes are critical, and users value the reliability of a well-known brand.
Pros and Cons
Pros:
- Titanium coating significantly extends bit life and reduces heat.
- Pilot Point tip ensures accurate starts and minimizes walking.
- Produces clean and precise holes.
- Reliable quality from a reputable brand like DEWALT.
Cons:
- Not specifically designed for extremely hardened steels (cobalt bits would be better).
- Case can be somewhat bulky for smaller toolboxes.
Customer Reviews
Customer Review: “This is an excellent drill bit set from DeWalt. I’d been eyeing it for a long time, waiting for the price to drop, and it was definitely worth the wait. Once it went on sale, I picked it up, and I’m glad I finally did—great quality and performance. The pilot point really makes a difference for clean starts.”
Customer Review: “DeWalt bits never disappoint. I’ve used these titanium-coated bits for various projects, from hanging shelves to drilling through thin metal, and they always perform. They stay sharp much longer than standard bits, and the case keeps them well organized. A solid investment for any toolkit.”
Complete Buying Guide for Best Drill Bits
Finding the best drill bits can significantly improve your project outcomes. This guide will walk you through the essential factors to consider when making your purchase, ensuring you get a set that perfectly matches your needs and budget.
Essential Factors We Consider
When evaluating drill bits, several key factors come into play:
- Material Composition: This is paramount. High-Speed Steel (HSS) bits are great for wood, plastic, and soft metals. For harder materials like stainless steel or cast iron, Cobalt (M35 or M42) drill bits are essential due to their heat resistance and strength. Black Oxide drill bits offer moderate heat resistance and corrosion protection, while Titanium Nitride (TiN) coated drill bits enhance hardness and reduce friction for longer life and faster drilling.
- Bit Design and Tip: The tip of the drill bit impacts its starting accuracy and cutting efficiency. A 135° split point prevents “walking” (when the bit slides across the surface) and allows for faster, more precise starts without a pilot hole. A Pilot Point design, commonly found in titanium bits, also ensures accurate starts and cleaner holes.
- Shank Type: Most bits have a round shank, but some come with a hex shank for quick-change chucks or a three-flat shank to prevent slipping in standard chucks. Ensure the shank type is compatible with your drill.
- Set vs. Individual Bits: For general DIY, a versatile drill bit set with a range of sizes is ideal. For specific heavy-duty or industrial tasks, purchasing individual, high-quality bits in the required size is often more cost-effective and efficient.
- Intended Application: Are you working primarily with wood drill bits, metal drill bits, or need something for masonry? Ensure the bits are rated for the materials you’ll be drilling. Some bits are multi-material, offering convenience for varied tasks.
- Durability and Longevity: Look for bits with good reviews on durability. Coatings like titanium nitride or a black oxide finish can significantly extend a bit’s lifespan by reducing wear and corrosion.
Budget Planning
Your budget will often dictate the quality and type of drill bits you can acquire. Basic HSS sets are very affordable and suitable for occasional light-duty tasks. Mid-range sets, often with black oxide or titanium coatings, offer a good balance of performance and price for regular DIY or hobby use. For professional work with hard metals, investing in premium cobalt drill bits is crucial, as their superior performance and longevity will save money in the long run by reducing replacements and project time. Consider the cost per use: a more expensive, durable bit might be cheaper in the long run than repeatedly replacing cheap ones.
Final Thoughts
Choosing the best drill bits involves balancing material compatibility, tip design, and overall durability with your specific project needs and budget. Prioritize sets that offer good heat resistance and precise starting capabilities if you frequently work with metal. For general household tasks, a comprehensive multi-material set from a reputable brand will serve you well. Always remember to use appropriate drilling speeds and lubrication to maximize the life and performance of your drill bits, regardless of their quality.
Frequently Asked Questions
Q: What is the difference between HSS, Cobalt, and Titanium drill bits?
A: HSS (High-Speed Steel) drill bits are general-purpose bits suitable for wood, plastic, and soft metals. Cobalt drill bits (typically M35 or M42) are an alloy of steel and cobalt, offering superior heat resistance and hardness, making them ideal for drilling tough metals like stainless steel and cast iron. Titanium drill bits are HSS bits coated with titanium nitride (TiN), which adds a hard, heat-resistant layer, prolonging bit life and reducing friction, making them good for general metal drilling, but less effective on hardened steels than pure cobalt bits.
Q: Do I need different drill bits for wood and metal?
A: Yes, ideally you should use different bits. While some general-purpose HSS bits can work on both, dedicated wood drill bits (like spade bits, brad point bits, or auger bits) are designed for clean holes in wood, and metal drill bits (like HSS, titanium, or cobalt bits) are designed to withstand the heat and abrasion of drilling metal. Using the wrong bit can lead to dulling, breakage, or poor results.
Q: How can I make my drill bits last longer?
A: To extend the life of your drill bits: always use the correct bit for the material, apply appropriate pressure (too much or too little can cause issues), use proper RPM settings (lower speeds for harder materials), and always use a cutting fluid or lubricant when drilling metal. Store your bits in a organized case to protect them from damage and dulling.
Q: What does a 135° split point mean on a drill bit?
A: A 135° split point refers to the angle of the cutting tip and a small split (or chisel edge) at the very center. This design allows the drill bit to start drilling on contact without “walking” or requiring a pilot hole, providing greater accuracy. It also helps to break up chips, making drilling more efficient, especially in harder materials. This is typically found on metal-specific and cobalt drill bits.
Q: Can I sharpen dull drill bits?
A: Yes, many drill bits can be sharpened. Smaller, standard HSS bits can be sharpened with a grinding wheel or a specialized drill bit sharpening tool. Cobalt and titanium bits can also be sharpened, but their harder materials and specialized tip geometries might require more precision or specific sharpening techniques. Sharpening can significantly extend the usable life of your drill bits.
Choosing the right drill bits is a foundational step for successful and efficient projects. Whether you’re upgrading your workshop or just starting your DIY journey, selecting a quality set tailored to your materials and needs is paramount. We hope this guide has illuminated the key features and top options available, empowering you to make an informed decision. Invest in a good set today, and experience the satisfaction of precise, effortless drilling. Click on the “Check Price on Amazon” buttons above to find the perfect drill bits for your next project!
I’m Darrell Julian, the founder, lead writer, and hands-on welding enthusiast behind ArcWeldingPro.com. With more than 15 years of real-world welding experience, I created this platform to share what I’ve learned in the field, in the shop, and in the heat of the arc.
