10 Best Drill Index Sets for 2026

You probably don’t realize that a 135-degree split-point design can cut your drilling time in half and reduce heat buildup dramatically.

I’m going to walk you through what separates a mediocre drill set from a professional-grade collection that’ll handle stainless, titanium, and hard metals without breaking a sweat.

The right index set transforms your toolkit, and I’ve identified the top options that deliver precision, durability, and organization.

Let’s explore what makes each one worth your attention.

Cobalt Drill Bit Set 29Pcs M35 with Storage Box

If you’re tackling projects that demand precision drilling through stubborn materials like stainless steel, cast iron, or titanium, the SEDIANAS Cobalt Drill Bit Set is built for exactly that challenge. This 29-piece collection spans from 1/16″ to 1/2″, giving you comprehensive coverage for most drilling needs.

The M35 cobalt composition delivers superior heat resistance and hardness compared to standard steel bits. You’ll appreciate the 135-degree split point design that centers automatically and eliminates walk-off, plus the fully ground twist design clears chips efficiently while reducing friction. The included metal storage box keeps everything organized and accessible, making this set practical for both workshop and job site use.

Best For: Professionals and serious DIYers who regularly drill through hard materials like stainless steel, cast iron, and titanium and need precision, durability, and reliability in a comprehensive bit set.

Pros:

• Superior heat resistance and hardness with M35 cobalt composition ensures longer tool life and better performance on tough materials
• 135° split point design with fully ground twist eliminates walk-off and clears chips efficiently, delivering precise holes with less friction
• Complete 29-piece set (1/16″ to 1/2″) with organized metal storage box provides convenient access and portability for workshop or job site use

Cons:

• May be overkill for casual users or those primarily drilling through soft materials like wood or basic plastics
• Requires proper technique and handling to maximize the precision benefits; improper use can still result in bit breakage or reduced lifespan

Drill America 29 Piece High Speed Steel Drill Bit Set

Want a drill bit set that handles everything from delicate aluminum to stubborn stainless steel without breaking the bank? The Drill America KFD29J-PC delivers exactly that. You’re getting 29 premium M2 high-speed steel bits ranging from 1/16 to 1/2 inch in precise 1/64 inch increments.

The 135-degree split point tip is where this set shines: it’s self-centering, reduces thrust, and penetrates hard materials without needing a pilot hole. That black and gold oxide finish resists corrosion while boosting hardness. The round index case keeps everything organized and portable. At 2.1 pounds, it’s genuinely travel-friendly. You’ll appreciate how these bits won’t walk across your work surface like conventional 118-degree tips do.

Best For: DIY enthusiasts, professionals, and craftspeople who need a versatile drill bit set that handles multiple materials from aluminum to stainless steel with reliable performance and portability.

Pros:

• Premium M2 high-speed steel with 135-degree split point tip eliminates the need for pilot holes and prevents bit walking on hard surfaces
• Comprehensive 29-piece set with 1/64 inch increments covering 1/16 to 1/2 inch sizes, making it suitable for a wide range of drilling applications
• Durable black and gold oxide finish resists corrosion while the lightweight, portable round index case keeps bits organized and travel-ready

Cons:

• Limited to smaller diameter sizes, maxing out at 1/2 inch, which may not suit projects requiring larger holes
• High-speed steel bits are less durable than cobalt or carbide alternatives for extended heavy-duty industrial use
• Round storage case, while portable, may be less space-efficient than traditional metal cases for users with limited storage space

Cobalt Drill Bit Set 115Pcs M35 High Speed Steel

Need a thorough drill set that tackles the toughest materials? I’d recommend this 115-piece collection because it delivers real versatility. You’re getting fractional sizes from 1/16″ to 1/2″, letters A through Z, and numbered bits #1 to #60, all housed in an organized metal index box.

The M35 cobalt high speed steel construction handles stainless steel, cast iron, titanium alloys, and hard plastics without breaking a sweat. I appreciate the 135° split point design since it self-centers and prevents walk-off for precise, faster drilling. The fully ground twist design clears chips efficiently, reducing friction and heat.

Whether you’re working on demanding projects or need reliable backup bits, this comprehensive set covers your bases.

Best For: This comprehensive 115-piece drill bit set is best for professionals and serious DIYers who frequently work with hard metals like stainless steel, cast iron, and titanium alloys and need reliable, organized tools for demanding projects.

Pros:

• Extensive size range with 115 bits (fractional, letter, and numbered) covering virtually all common drilling needs in one organized metal index box
• M35 cobalt high speed steel construction with 135° split point design delivers superior heat resistance, self-centering accuracy, and prevents walk-off for precise drilling
• Fully ground twist design efficiently clears chips and reduces friction and heat, extending tool life on tough, high-tensile materials

Cons:

• Large 115-piece set may be excessive for casual users or those who only work with softer materials like wood and basic plastics
• Metal index box storage, while organized, takes up considerable space compared to smaller drill bit sets
• No information provided regarding individual bit replacement availability if specific sizes become damaged or worn out

DEWALT Titanium Nitride Drill Bit Set (DW1361)

The DEWALT DW1361 delivers versatility across wood, metal, and plastic without forcing you to juggle multiple bit sets. This 21-piece collection features titanium nitride coating that extends bit life markedly, while the pilot point design prevents walking and ensures clean hole starts.

You’ll appreciate the no-spin hex shanks that eliminate frustrating slipping, paired with tapered webs that reduce breakage during demanding jobs. Sizes range from 1/16 inch up to 1/2 inch, covering most standard drilling needs. The durable carrying case keeps everything organized and portable, making this set practical for workshops and jobsites alike.

Best For: This set is best for DIYers, contractors, and workshop enthusiasts who need a reliable, versatile drill bit collection that handles wood, metal, and plastic applications without switching between multiple kits.

Pros:

• Titanium nitride coating extends bit life and reduces the need for frequent replacements
• Pilot point design with no-spin hex shanks prevents walking and ensures clean, accurate hole starts
• Comprehensive 21-piece set with sizes from 1/16 inch to 1/2 inch covers most standard drilling needs, eliminating the need for multiple bit sets

Cons:

• Limited to a maximum bit size of 1/2 inch, which may not be sufficient for larger drilling projects
• No information provided about performance on harder materials like cast iron or masonry
• Tapered web design, while reducing breakage, may not provide the same durability as solid carbide bits for heavy-duty professional use

29Pcs Cobalt Drill Bit Set with Index Case

Working with tough materials like stainless steel or cast iron demands drill bits built to handle serious punishment. The 29Pcs Cobalt Drill Bit Set delivers exactly that with its black and gold oxide coating designed for durability and wear resistance. I appreciate the 135-degree split point design, which prevents bit walk-off and keeps your work precise.

The four-flute design speeds up cutting while improving chip removal, so you’re not constantly stopping to clear debris. You get 29 sizes ranging from 1/16″ to 1/2″, covering virtually any drilling need, and they’re organized in a metal index case for easy storage. Managing heat and pressure during operation keeps these bits performing optimally. Whether you’re tackling stainless steel, sheet metal, or cast iron, this set handles it all competently.

Best For: This drill bit set is best for professionals and DIY enthusiasts who regularly work with hard metals and tough materials like stainless steel, cast iron, and sheet metal.

Pros:

• 135° split point design with 4-flute geometry prevents walk-off and delivers faster cutting with superior chip removal
• Comprehensive 29-piece set (1/16″ to 1/2″) covers virtually any drilling need with organized metal index case storage
• Black and gold oxide coating provides excellent wear resistance and durability across multiple material types including steel, stainless steel, cast iron, aluminum, and plastic

Cons:

• Requires careful management of speed, pressure, and heat during operation to maintain optimal performance and bit longevity
• Limited to straight shank design, which may not be compatible with all drill chuck types or specialized drilling applications
• No information provided regarding bit lifespan, warranty, or performance guarantees compared to competing brands

DEWALT 14-Piece Drill Bit Set (DWA1184)

If you’re drilling through metal regularly and tired of bits that wander or snap, this set’s your answer. DEWALT’s 14-piece collection features High Speed Steel bits with a 135-degree split point that keeps wandering to a minimum. The 3-flats shank prevents annoying spin-out in your chuck, especially with larger sizes over 3/16-inch.

That tapered web design they’ve built in handles extreme durability, resisting breakage when you’re pushing hard. The black and gold coating fights rust effectively, keeping your bits ready for the next job. You’re getting versatility here too, since these bits work across metal, plastic, and wood with equal competence. It’s a solid, no-nonsense set that delivers reliable performance without pretense.

Best For: DIYers and professionals who frequently drill through metal and need durable, reliable bits that resist wandering and breakage.

Pros:

• 135-degree split point tip minimizes bit walking for more precise drilling
• 3-flats shank prevents spin-out, especially beneficial for larger drill sizes over 3/16-inch
• Tapered web design provides extreme durability and resistance to breakage under heavy use

Cons:

• Limited to 14-piece set, which may not cover all specialized bit sizes some users need
• Black and gold coating, while rust-resistant, may wear off with heavy or extended use
• 3-flats shank design limits compatibility with some older or specialty chuck types

230 Piece Titanium Twist Drill Bit Set with Storage

Need a thorough drill bit collection that handles wood, metal, plastic, and fiberglass? The Hurricane 230-piece titanium-coated set delivers serious versatility. You’re getting sizes from 3/64″ up to 1/2″, organized strategically with more smaller bits where you’ll actually need them.

The HSS construction with that 135-degree tip means these bits grip materials effectively, while the titanium coating reduces heat buildup and extends life considerably. Everything nestles into a hard plastic storage box, keeping your bits organized and protected during transport. Whether you’re tackling general household projects or running multiple jobs, this comprehensive kit covers virtually every drilling scenario you’ll encounter.

Best For: Homeowners, DIY enthusiasts, and professionals who need a comprehensive drilling solution for diverse materials including wood, metal, plastic, and fiberglass without investing in multiple specialized sets.

Pros:

• Versatile 230-piece collection with strategic size distribution covers virtually all common drilling applications across wood, metal, plastic, and fiberglass materials
• Titanium coating reduces heat buildup and extends bit life while the 135° HSS tip provides effective material grip and durability
• Hard plastic storage box keeps bits organized and protected, making the set portable and easy to access for any project

Cons:

• With 230 pieces, some bits may see limited use depending on your typical project types, potentially leaving redundant sizes unused
• HSS material, while durable, may not match the performance of cobalt or carbide bits for heavy-duty industrial or extended professional use
• Smaller bit sizes (particularly the 32 pieces of 3/64″) may be prone to breakage if not handled carefully or used with excessive pressure

Topline Drill Bit Set, 60pcs #1-#60 & Huot USA Index, 60pcs Bright Finish

The Topline Drill Bit Set delivers serious value for hobbyists and professionals alike. You’re getting 60 bits spanning sizes #1 through #60, ground from quality M2 steel rather than cheaper imported carbon steel. Each bit features a standard 118-degree point and 2 flutes designed for wood, metal, or plastic.

The high-speed steel construction handles serious work, and the bright finish resists corrosion. What I appreciate most is the included Huot USA index, a sturdy organizer that keeps everything accessible.

Best For: This drill bit set is best for hobbyists, DIYers, and professionals who need a comprehensive range of sizes for drilling through wood, metal, or plastic without investing in premium-priced tools.

Pros:

• Comprehensive 60-piece set (#1-#60) with quality M2 steel construction offers professional-grade performance at an accessible price point
• Includes a sturdy Huot USA index organizer that keeps all bits accessible and well-organized
• Versatile high-speed steel bits with 118-degree points suitable for drilling wood, metal, and plastic materials

Cons:

• Bright finish may require maintenance to prevent corrosion over time in humid environments
• Limited ranking (#432,645 in Tools & Home Improvement) suggests it may not be the top choice compared to competing drill bit sets

BOSCH CO21B 21-Piece Cobalt Metal Drill Bit Set

Bosch’s CO21B set handles what standard drill bits simply can’t: stainless steel, cast iron, titanium, and other brutally hard metals that dull ordinary bits in minutes. The M42 cobalt alloy with 8% cobalt content delivers 10 times the life of standard bits, making it worth the investment if you’re serious about metal work.

The split-point design on 1/8-inch bits and the three-flat shank on larger pieces provide superior stability and grip during drilling. You’ll appreciate the thick web-helix design that removes material fast while maintaining control. The 21-piece assortment covers common sizes from 1/16 inch through 1/2 inch, and it arrives in a plastic case ready to organize your workshop.

Best For: Professionals and serious DIYers who regularly drill through hard metals like stainless steel, cast iron, and titanium and need bits that won’t dull quickly.

Pros:

• 10x longer lifespan than standard drill bits
• M42 cobalt alloy with superior heat resistance enables extended use in high-temperature applications without degradation
• Comprehensive 21-piece set with included case covers common bit sizes from 1/16 inch to 1/2 inch for diverse drilling needs

Cons:

• Split-point and three-flat shank designs are specialized features that require compatible drill chucks, limiting versatility with some equipment
• Plastic storage case may not provide long-term durability or protection if bits are transported frequently or stored in harsh conditions

Norseman Ultra Dex 135 Degree Jobber Drill Set (29-Piece)

Want precision drilling that won’t quit on demanding jobs? I’d recommend the Norseman Ultra Dex 135 Degree Jobber Drill Set for serious work. This 29-piece collection features high-speed steel bits coated in gold oxide, ranging from 1/16 to 1/2 inch, perfect for tackling tough materials.

The 135-degree split point delivers accuracy that matters when precision counts. What sets this apart is the Ultra Dex precision grinding on points, flutes, and body clearance, plus special hi-molybdenum tool steel construction designed for durability. Meeting NAS 907B aerospace standards means you’re getting reliable, consistent performance across every hole you drill.

Best For: This drill set is best for professionals and serious DIYers who need reliable, precision drilling performance on tough materials and demanding jobsite applications.

Pros:

• Ultra Dex precision grinding and 135-degree split point deliver exceptional accuracy and consistent hole quality across all 29 bits
• High-speed steel with gold oxide coating and hi-molybdenum construction provides excellent durability and long tool life for demanding work
• NAS 907B aerospace standard qualification ensures tight tolerances and reliability you can depend on for critical applications

Cons:

• Limited to jobber-length bits, which may not be suitable for specialized drilling applications requiring extended reach or different shank styles
• 29-piece set may include some sizes that aren’t frequently used, potentially resulting in underutilized bits for specific projects

Factors to Consider When Choosing a Drill Index Set

Before you settle on a drill index set, I want to walk you through the key features that’ll actually matter when you’re in the middle of a project. You’ll want to evaluate the material grade and composition (which determines durability and heat resistance), the bit quantity and size range available, the storage case design quality, and the point design and geometry that affects how cleanly your bits cut. Getting these fundamentals right upfront means you’re investing in a set that’ll handle whatever drilling jobs come your way without frustration.

Factors to Consider When Choosing Drill Index Set

How do you know which drill index set will actually serve your needs versus sitting unused in your toolbox? I’d start by considering these key factors:

Size range matters most. You’ll want a complete set spanning 1/16″ to 1/2″ with 1/64″ increments, ensuring you’ve got the precise hole sizes your projects demand.

Next, examine the shank design and point angle. Round versus 3-flat shanks affect chuck compatibility, while a 135° split point reduces walk-off and improves centering on hard surfaces.

Don’t overlook coatings either. Titanium nitride or cobalt M42/HSS options significantly boost heat tolerance and wear resistance when drilling demanding materials like stainless steel or titanium. Finally, check your storage solution. A well-organized case keeps bits accessible and protects your investment long term.

Material Grade and Composition

When you’re shopping for a drill index set, the material grade and composition of those bits will make or break your results, especially once you start tackling demanding projects. I’d recommend looking for M35 cobalt alloy (5% cobalt) or M42 cobalt (8% cobalt) over standard HSS, since the higher cobalt content delivers superior hardness and heat resistance.

That matters hugely when you’re drilling stainless steel, cast iron, or titanium alloys. Many quality sets also feature titanium nitride coatings that further reduce wear and heat buildup, extending the life of your investment. And don’t overlook the split-point tip design at 135 degrees, which promotes self-centering and prevents walking on tough materials, giving you accuracy alongside durability.

Bit Quantity and Size Range

The right quantity and size range can transform your drill index set from a narrow specialty tool into a genuinely versatile workhorse. I’ve found that most quality sets range from 14 to 230 pieces, with 21, 29, and 60-piece configurations hitting the sweet spot for home and professional use.

Size coverage typically spans 1/16 inch to 1/2 inch in 64th-inch increments, giving you precise options across materials. But here’s where it gets interesting: some sets expand beyond fractional bits to include alphabetic (A-Z) and numeric (#1-#60) sizes, dramatically broadening your toolkit.

Higher piece counts mean better coverage of both tiny and larger diameters. And organized index cases are game-changers for quickly locating exactly what you need without frustration.

Storage Case Design Quality

Once you’ve settled on a set with the right bit quantity and size coverage, what keeps those bits organized and protected becomes your next consideration. I’d prioritize a sturdy, rigid storage box that prevents bits from shifting during transport. Look for clear, labeled size markers on the index so you’re not hunting through slots to find the right bit.

Secure closures or snap-fit latches matter more than you’d think, especially on job sites where spills happen. And stability features like a flat or magnetic bottom keep your case from sliding around on benches or in toolboxes.

Finally, integrated organization aids such as dedicated slots for each size range maintain order and prevent bit mixing. These design elements transform a simple container into a functional, reliable system.

Point Design and Geometry

Bit geometry might seem like technical minutiae, but it’s honestly where performance separates a mediocre set from one that’ll serve you well for years. A 135-degree split point design self-centers your bit and reduces walking on initial contact, giving you noticeably more accurate holes right from the start.

And the flute configuration matters too: two-flute designs excel at chip clearance while four-flute setups handle heat buildup better in harder materials. Look for fully ground twists rather than rolled ones, since that precise geometry enhances penetration efficiency and reduces thrust when you’re drilling stainless steel or titanium. Combined with quality coatings like titanium nitride on high-speed steel substrates, you’ll get superior hardness and extended bit life that justifies the investment.