Strongest Metal Drill Bit: Insights for Quality Drilling

We have researched 13 metal drill bits for you.

When it comes to tackling the toughest drilling tasks, the choice of tool can make or break the outcome. Metal drilling, in particular, demands a combination of strength, durability, and precision to achieve desired results. That's why selecting the right drill bit is crucial for professionals and enthusiasts alike who seek efficiency and longevity in their equipment.

The following roundup presents an array of drill bits that are not only engineered to stand up to the rigors of metalwork but also designed to offer the precision required for meticulous tasks. Each candidate has been assessed for its material composition, cutting edge design, and user feedback to ensure only the top performers earn their place on this list.
To simplify the price comparison, we determine the prices for the individual articles on Amazon, Ebay and other shops and link the offers via partner links where applicable. This means that we receive a commission if you buy something that we recommend - the price does not change for you.

What to Look for in Strongest Metal Drill Bits

Important criteria

  • Made from high-speed steel (HSS)
  • Cobalt-infused or solid cobalt for hardness
  • Carbide-tipped for durability
  • Titanium coating for longevity
  • Suitable tip angle for the metal being drilled
  • Appropriate length and diameter for the task

1.) Material Quality

When purchasing the strongest metal drill bit, the primary consideration should be the material it's made from. High-speed steel (HSS) is a common choice for durability and is capable of cutting through most metals. Cobalt steel alloys are superior for their high resistance to heat and wear, making them ideal for drilling into harder metals. Carbide-tipped drill bits are another option, offering exceptional hardness and longevity, but tend to be more brittle and expensive.

2.) Bit Coating

The coating on a drill bit can significantly affect performance. Black oxide is a basic coating that provides heat resistance and lubricity, enhancing the lifespan of a bit. Titanium coatings, such as Titanium Nitride (TiN), offer increased hardness and durability, allowing for faster drilling speeds and less friction. For the toughest jobs, Titanium Aluminum Nitride (TiAlN) or Diamond-like Carbon (DLC) coatings provide exceptional wear resistance and can extend the life of the drill bit even further.

3.) Drill Bit Geometry

The geometry of the drill bit is crucial, as it impacts the bit's cutting efficiency and the quality of the hole. A split point tip (self-centering tip) reduces walking and allows for precise starts. Flute design plays a role in material removal and heat dissipation. Shorter and wider flutes are good for harder materials, while longer, spiral flutes are better for softer materials. Considering the helix angle, point angle, and length of the drill bit will also ensure optimal performance for the task at hand.

4.) Size and Compatibility

Selecting the correct size and type of drill bit for your metal drilling task is essential. Ensure the size matches the requirements of the hole you intend to make. The shank design should also be compatible with your drilling tool. Round shanks are common and can provide adequate grip, but hex or triangular shanks can offer better torque and prevent slippage. Additionally, consider buying sets with multiple sizes or a step bit for versatility in various jobs.

The Strongest Metal Drill Bits of our Choice

Our Pick
Neiko 10193A Titanium Step Bits
Neiko 10193A Titanium Step Bits
Model: 10193A Type/Color: Titanium Size: Straight
  • High speed steel with titanium coating
  • Proven capability and durability in drilling
  • Suitable for plastic, aluminum, copper, stainless steel
  • 135° split point tip for increased cutting speed
  • Self-centering and prevents walking
  • Two-flute design for fast chip clearing
  • Allows particles to escape easily
  • Tri-flatted shank for secure chuck fitting
  • Eliminates slip
  • Set includes 3 different bits with multiple steps
$ 11.99 *
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2
Luckyway 20-Piece 1/16"
Luckyway 20-Piece 1/16"
  • Includes 20PCS 1/16" Cobalt Drill Bits
  • Packed in plastic box for easy storage
  • Ideal for precision drilling on various materials
  • Made of Industry grade M35 High Speed Steel
  • Contains 5% cobalt for durability
  • 135° standard industrial double rear edge Angle
  • Self-centering to prevent walk-off
  • Faster chip with double spiral cutting slot design
  • Large capacity cutting space for good performance
  • Shank design compatible with most power tools
  • Unique Tri-flatted shank end for secure operation
$ 6.99 *
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3
MACXCOIP Cobalt Drill Bit Set
MACXCOIP Cobalt Drill Bit Set
  • Various sizes of drill bits for different needs
  • M35 cobalt drill bit for cutting metals and plastics
  • Quick and efficient cutting with self-centering
  • HSS cobalt drill bit set for hardened steel
  • Easy storage and sorting with drill case
$ 9.98 *
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4
Rocaris 8 Pack Titanium Coated HSS Twist Drill Bits
Rocaris 8 Pack Titanium Coated HSS Twist Drill Bits
Type/Color: Gold
  • 8 common sizes: 3mm to 10mm included.
  • Made of HSS Material with Titanium Coating.
  • Improves cooling for faster drilling.
  • 135° Split Point prevents walking.
  • Sharp serrations for efficient chip evacuation.
  • Suitable for thin board, wood, aluminum alloy.
$ 9.99 *
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5
Owl Tools Cobalt Drill Bits for Metal and Steel
Owl Tools Cobalt Drill Bits for Metal and Steel
Size: 13 PACK SET
  • Set of 13 cobalt drill bits in various sizes
  • Bits contain 5% cobalt, fully grounded for precision
  • 135° split point design for drilling in harder materials
  • Includes tough and durable plastic storage case
  • Suitable for drilling metal and other hard materials
  • Lifetime guarantee provided by Owl Tools
$ 15.99 *
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6
13-Piece M35 Cobalt Drill Bit Set for Hard Metal
13-Piece M35 Cobalt Drill Bit Set for Hard Metal
Model: DHCO13 Type/Color: Brownish-gold Size: 13 pc. Drill Bit Set
  • Jobber length cobalt drill bit, 135 degree split point
  • 3-flat shank for secure grip in chucks
  • Made from high-speed steel and 5% cobalt
  • Improved heat resistance compared to typical hss bits
  • Strong and durable performance
  • Can be repeatedly sharpened without damage
  • Suitable for drilling in hard metals, including stainless steel
  • Includes 13 pieces cobalt drill bits in various inch sizes
  • Comes with a plastic case
$ 16.98 *
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7
Yougfin Drill Bit Set
Yougfin Drill Bit Set
Model: 4241-21
  • Crafted from high speed steel, resistant to heat.
  • Dual flutes for easy chip removal and coolant flow.
  • Featuring a 135°split point for reduced pressure.
  • Includes sizes 1/16" to 3/8" for all jobs.
  • Designed for sheet metal and non-ferrous materials.
$ 17.99 *
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8
DEWALT Drill Bit Set
DEWALT Drill Bit Set
Model: DWA1184 Type/Color: Multi Size: 14 piece set (Pack of 1)
  • 135 Degree Split point tip design
  • High Speed Steel for plastic, wood, and metal
  • Tapered web design for durability and resisting breakage
  • Black and gold coating to prevent rust and wear
  • 3-Flats shank to reduce spin-out in the chuck
  • Size markings on the drill bit shank
$ 9.98 *
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9
ZELCAN HSS 5PCS Titanium Step Drill
ZELCAN HSS 5PCS Titanium Step Drill
Size: 50 Sizes, 1/8" to 1-3/8"
  • HSS Steel Construction - Longer cutting edge life.
  • Titanium Coating - Good heat and rust resistance.
  • Automatic Center Punch - High-impact spring-loaded strike.
  • 50 Size In 5 - Five standard step drill bits.
  • Handyman or Professionals - Suitable for home repairs and light jobs.
$ 26.99 *
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10
Hi-Spec Drill Bit Set 130pc Multi
Hi-Spec Drill Bit Set 130pc Multi
Size: 130
  • Drilling quickly and accurately into different materials
  • Choose appropriate drill bit type for correct results
  • Hi-Spec Multi Metric Drill Bit Set for daily jobs
  • 78 High-Speed Steel (HSS4241) twist drill bits
  • Stronger than normal high-carbon steel for various materials
  • Titanium coated for wear resistance and reduced friction
  • Sizes 1/16, 5/64, 1/8, 5/32, 3/16, 1/4, 5/16, 3/8"
  • 26 Brad Point Wood Bits for wood and plastics
  • Sharpened edges easily cut wood and plastics
  • Piercing tips for non-slipping and accurate starts
  • Sizes 5/32, 3/16, 15/64, 5/16, 3/8"
  • 26 Masonry Bits with Tungsten-Carbide YG8C tips
  • Longer-lasting strength against brick and concrete
  • Sizes 5/32, 3/16, 15/64, 5/16, 3/8"
  • Bits come wrapped in bags, not loose
  • Storage tray case keeps bits organized
  • Clear plastic insert prevents bit movement
  • Sizes printed on the case lid underside
  • Steel catch ensures the case snaps shut
$ 39.99 *
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11
BOYOUYS Hss Titanium Step Drill Bit 5pcs
BOYOUYS Hss Titanium Step Drill Bit 5pcs
Type/Color: Gold Size: HSS 5PCS
$ 24.96 *
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12
BOSCH TI5IM 5-Piece Assorted Set Titanium
BOSCH TI5IM 5-Piece Assorted Set Titanium
Model: TI5IM Size: Assorted
  • Accurate starts with no skate tip
  • Suitable for heavy-gauge and high-carbon steel
  • Effective material removal with long flutes
  • Higher torque drill/driver with impact-rated shank
  • Less friction due to titanium coating
$ 8.99 *
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13
NordWolf 5-Piece M35 Cobalt Stubby Drill
NordWolf 5-Piece M35 Cobalt Stubby Drill
Size: 3/32" to 5/16" (5 Pcs)
  • High quality M35 Cobalt steel drill bits
  • Stubby design for access to tight spaces
  • 135° split point for self-centering and fast drilling
  • Suitable for stainless steel and other metals
  • 1/4-inch hex shank compatible with standard chucks
  • Includes popular sizes: 3/32", 1/8", 3/16", 1/4", 5/16"
  • Packaged in plastic box for easy storage
  • Box has clip for hanging on pegboards
$ 17.99 *
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* All prices incl. VAT, plus shipping if applicable. Prices, delivery times and costs may change in the meantime. The selection of products was made independently of the manufacturer and without any claim to completeness. All links to products are external partner links through which we may receive compensation. All information without guarantee.

Top Picks for Durable Metal Drill Bits

Budget-Conscious Shoppers
Seeking a balance between cost and quality can be challenging. Explore our selection tailored for those who prioritize economy without compromising performance. Discover the most resilient metal drill bits that align with your budget.
Professional Grade Seekers
For professionals, reliability and endurance of tools are paramount. Dive into our curated list of high-grade metal drill bits that are trusted by experts. Ensure your work remains uninterrupted with robust drill bits designed for intensive use.
DIY Enthusiasts
Embrace your do-it-yourself spirit with drill bits that are easy to use and incredibly durable. Check out our recommendations perfect for home projects and crafting. Get the right tool to make your DIY endeavors successful and enjoyable.
Longevity Seekers
If you're looking for drill bits that last, we have options that excel in lifespan. Browse through our selections designed to withstand multiple applications. Find the ideal metal drill bit that will stand the test of time for your projects.

Questions You Might Ask

Metal drill bits are typically made from High-Speed Steel (HSS), Cobalt (HSCO), and Carbide (Carb). HSS bits are suitable for general-purpose drilling in materials like plastic, wood, and mild steel. Cobalt bits are ideal for drilling into harder steel and stainless steel due to their superior hardness and heat resistance. Carbide bits are the hardest and are used for drilling into the toughest materials, but they are also the most brittle and expensive.
Uncoated metal drill bits are good for general drilling applications but can wear off quickly when drilling harder materials. Coated metal drill bits, such as those with Titanium Nitride (TiN), Titanium Carbonitride (TiCN), or Diamond coatings, have increased surface hardness, better heat-resistance, and a lower coefficient of friction. This results in longer bit life and enhanced performance, especially in repetitive drilling applications or when drilling harder materials.
Drill bit geometry refers to the angle and shape of the tip, flute design, and the overall length of the bit. A standard 118-degree point angle is suitable for soft materials, while a 135-degree self-centering split point helps reduce walking and is better for hard materials. The flute design affects chip removal and cooling; parabolic flutes can improve these aspects in deeper holes. Shorter bits are more rigid and accurate, while longer bits can reach deeper with less precision.
Yes, you can use a metal drill bit to drill into wood or plastics; however, it is generally better to use bits designed specifically for those materials. Wood and plastic-specific drill bits have different geometries optimized for cutting those materials efficiently and preventing damage like cracking or splintering.
To ensure the longevity of your metal drill bits, use the correct bit for the material and application, apply the right drilling speed and feed pressure, and use cutting fluid to reduce heat and friction. It's also important to regularly sharpen your bits and to store them properly, avoiding moisture and extreme temperatures that may cause corrosion.

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How to Choose the Strongest Metal Drill Bits

Embarking on a metal drilling project can be a tough nut to crack. The success of your work hinges on selecting the right tools, with the drill bit being paramount. Drill bits come in various materials, shapes, and sizes, each suited for different tasks and metals. This guide unveils the secrets to choosing the strongest metal drill bits, ensuring precision and efficiency in your projects. Get ready to transform your drilling experience from daunting to doable!

Understanding Drill Bit Materials

When selecting a metal drill bit, the material it's made of matters greatly. High-Speed Steel (HSS) bits are a popular choice for their durability and ability to cut through softer metals like copper and aluminum. Cobalt drill bits, while pricier, excel in dealing with harder metals such as stainless steel, thanks to their superb heat resistance and strength.
Carbide-tipped bits top the charts in terms of hardness and longevity. Ideal for professional settings where precision and endurance are key, these bits can plow through the toughest materials, albeit at a higher cost. It's crucial to weigh your project demands against the bit's material to make an informed choice.

Bit Design and Coatings

Drill bit designs and coatings also play a pivotal role in determining their strength and efficiency. Twist bits, the most common design, are versatile and great for general drilling purposes. However, for more strenuous jobs involving hard metals, consider a step bit or a bullet pilot point.
Coatings such as black oxide, titanium nitride, or diamond powder boost a bit's strength and reduce friction, thus enhancing durability and cutting speed. A coated drill bit can sustain its sharpness longer, making it suitable for intensive metal drilling. Remember, the tougher your project, the tougher your bit's coating should be.

Size and Compatibility

It's essential not to overlook the size of your drill bit. A mismatch between your bit and drill can result in inefficient drilling or even damage to your tool. Make sure to choose bits tailored to your drill's specifications and the job at hand.
Also, consider the shank type—be it a straight shank for standard drills or a hexagonal shank for impact drivers. Ensure compatibility with your drill's chuck for a secure fit. This ensures maximum power transfer, accuracy, and safety during your drilling tasks.

Drill Bit Maintenance and Care

The strength of a metal drill bit is not only inherent but also depends on proper maintenance. Keep bits clean and free from debris to maintain sharpness. Lubrication is also important, especially when working with metals, to prevent overheating and wear.
After each use, inspect your bits for wear or damage. Store them properly in a case or on a magnet strip to avoid blunting their edges. A well-maintained drill bit not only lasts longer but also ensures that every drilling operation is as efficient as the first.

Hands-on Reviews and Recommendations from Discussion-Boards

In our search for the most durable and robust metal drill bits, we've compiled a comprehensive list of resources to assist you in making an informed decision. Our curated selections encompass a wide range of perspectives and include well-researched reviews, insightful forum posts, engaging Reddit discussions, and informative videos. Each category has been carefully chosen to ensure that you access only the most dependable and authoritative information on the subject of the strongest metal drill bits.
May 11, 2023 — Here are the best cordless drills from Consumer Reports' tough tests, including models from top brands such as Bosh, DeWalt, and Milwaukee.
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Aug 23, 2021 — Five brands rated Excellent in both reliability and satisfaction—Bosch, DeWalt, Makita, Milwaukee, and Ridgid. You can spend anywhere from $30...
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Oct 18, 2020 — Best Cordless Drills for $100 or Less. 1. More energy-efficient... drill heavy and a bit awkward to handle. Unlike most drills in our ...
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Oct 21, 2017 — Well, it is a metal case. Any tool capable of cutting metal will work, probably. Still unsure of exactly what you need to cut out, but it really...
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I've had Milwaukee cobalts, cle-line black and gold (which surprisingly to me out performed solid Colbalt sets), Dewalt Colbalt, etc. I do quite ...
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Yes depends on what you're drilling into, for stainless steel, titanium etc cobalt bits are your best bet. Try Pan American Tool, they have all...
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Cobalt bits are your best bet here. They're still more likely to break in a hand drill. I've had good luck with Drill America brand.
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Most bits are HSS, high speed steel, which is a hardened steel. Carbide is great because it can handle high speeds and cutting pressure but ...
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Yep, Drill Hog or Norseman.
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Best Metal Drill Bits 2023 - Top 5 Picks - YouTube
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In this Metal Drill Bits review video; we will show you 5 top rated Metal Drill Bits to buy in 2023.We made this list based on our personal...

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