10 Best Drill Bits For Drilling Through Metal of 2026

Last updated on 04/02/2026
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Sinyeenglon Cobalt Drill Bit Set for Hardened Metal and Stainless Steel, 99Pcs M35 High Speed Steel Twist Jobber Metal Drill Bits 1/16"-3/8", with Plastic Index Storage Case
Sinyeenglon

Sinyeenglon Cobalt Drill Bit Set for Hardened Metal and Stainless Steel, 99Pcs M35 High Speed Steel Twist Jobber Metal Drill Bits 1/16"-3/8", with Plastic Index Storage Case

5% Off
Why we love it
  • Exceptional durability and hardness.
  • Convenient and organized storage.
  • Versatile sizes for various projects.
Main Highlights
  • Cobalt M35 Material: High cost, but hardness is up to 67, cut faster and has a long life, up to 12 times compared with the average HSS titanium coated bit
  • Hardened Full Grinding Process: Increases wear resistance, sharp and durable, used for stainless steel, cast iron, zinc alloy, titanium, aluminum and hard metal
  • Packaging: Hard and thick plastic box, drills bagged for compartmentalized storage, reasonable design, well secured package
  • Convenient Access: Various sizes are placed in different compartments of the plastic box, and the corresponding sizes of different drills are printed on the bottom of the lid, making it very convenient to access
  • Various Sizes: 16Pcs 1/16 in, 16Pcs 5/64 in, 15Pcs 3/32 in, 10Pcs 7/64 in, 10Pcs 1/8 in, 8Pcs 9/64 in, 8Pcs 5/32 in, 3Pcs 11/64 in, 3Pcs 3/16 in, 2Pcs 13/64 in, 2Pcs 7/32 in, 2Pcs 1/4 in, 2Pcs 5/16 in, and 2Pcs 3/8 in
  • Use Notices: Drill bit should be vertical to the workpiece when used; controling low speed from 200 to 1000 rpm; using cutting fluid will stay cool to make the bit last longer
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2
9.5
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toolant Cobalt Drill Bit Set for Metal and Steel (Pro), Titanium Aluminum Nitride Coated (TiAlN) with Bullet Point Tip, for Hardened Metal, Stainless Steel, 21pcs 1/16"-1/2"
toolant

toolant Cobalt Drill Bit Set for Metal and Steel (Pro), Titanium Aluminum Nitride Coated (TiAlN) with Bullet Point Tip, for Hardened Metal, Stainless Steel, 21pcs 1/16"-1/2"

Why we love it
  • Exceptional performance for metal.
  • Durable titanium coating enhances longevity.
  • Accurate drilling with self-centering tips.
Main Highlights
  • toolant Cobalt Drill Bit Set Pro - A metal drill bit set for steel and metal. Consisting of 21 titanium aluminum nitride coated cobalt drill bits with bullet point tips, offers exceptional performance specifically for drilling through metal.
  • 21-piece Cobalt Drill Bits Set - Includes metal drill bits: 1/16"(*2), 5/64"(*2), 3/32"(*2), 7/64"(*2), 1/8"(*2), 9/64", 5/32", 11/64", 3/16", 13/64", 7/32", 15/64", 1/4", 5/16", 3/8", 1/2".
  • Titanium Aluminum Nitride Coating - Increases surface hardness to 89HRC with outstanding heat-resistance, so your drill bit cuts fast and stay sharp.
  • Specifically Crafted Bullet Point - Sharp and self-centering tip minimize wandering and provides precise and accurate drilling. TOOLANT Pro 21-pack is meticulously engineered to excel in demanding heavy-duty scenarios.
  • 90 Days Warranty - In the event that you are not completely satisfied with your purchase for any reason, please reach out to us, and we will gladly provide a 100% refund or replacement.
9.5
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9.4
Superb
Drill America 29 Piece Cobalt Stepped Point Drill Bit Set in Round Case w/Gold Oxide Finish for Drilling Acrylic, Steel, Hard Metals, Sizes 1/16" to 1/2" x 64ths, GSC Series ZMGSC29J-PC
Drill America

Drill America 29 Piece Cobalt Stepped Point Drill Bit Set in Round Case w/Gold Oxide Finish for Drilling Acrylic, Steel, Hard Metals, Sizes 1/16" to 1/2" x 64ths, GSC Series ZMGSC29J-PC

Why we love it
  • Drills faster and easier.
  • Increases lifespan and reduces heat.
  • Versatile for multiple materials.
Main Highlights
  • GOLD STEPPED POINT COBALT: Drill America GSC Series Gold Stepped Point Cobalt Drill Bits start easier, drill faster, increase lifespan, and reduce heat compared to standard drill bits
  • BEST USES: This 29pc set comes with storage holder case and can be used as an enlarger for existing holes or to create new, smoother holes for multi material drilling in acrylic, steel, brass and other hardened metals
  • 135 DEGREE CUTTING ANGLE: These drill bits have a 135 degree split point tip and 3 -flat shank to prevent spinning; Sizes 11/64" and smaller have a round shank; Drill Bits have a gold oxide finish and jobber length
  • INCH SIZES INCLUDED: 1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 11/64, 3/16, 13/64, 7/32, 15/64, 1/4, 17/64, 9/32, 19/64, 5/16, 21/64, 11/32, 23/64, 3/8, 25/64, 13/32, 27/64, 7/16, 29/64, 15/32, 31/64 and 1/2
  • ABOUT DRILL AMERICA: Drill America specializes in supplying a full line of industrial and contractor cutting tools since 1923; Our products include drills, taps and dies, reamers, end mills, carbide burs, countersinks and more
9.4
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9.3
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Crosstar M35 Cobalt Drill Bit Set for Hardened Metal & Stainless Steel - 21pcs Titanium Aluminum Nitride Coated (TiAlN), Three-Flute Design, 1/16"-1/2" Metal Drill Bits
Crosstar

Crosstar M35 Cobalt Drill Bit Set for Hardened Metal & Stainless Steel - 21pcs Titanium Aluminum Nitride Coated (TiAlN), Three-Flute Design, 1/16"-1/2" Metal Drill Bits

Why we love it
  • Exceptional durability for toughest jobs.
  • Faster cuts with innovative design.
  • Precision drilling with no wandering.
Main Highlights
  • 🔥 【Engineered for Hardened Metals with M35 Cobalt Steel】 Crafted from premium M35 cobalt high-speed steel (5% cobalt), these bits are specifically designed to tackle the tough materials, including stainless steel, hardened cast iron, high-carbon steel, and titanium alloys, with effective drilling hardness up to 60 HRC.
  • ⚡️【TiAlN Coating for Extreme Heat Resistance & Extended Life】 The Titanium Aluminum Nitride (TiAlN) nano-coating withstands cutting temperatures up to 1472°F (800°C), drastically reducing heat buildup and friction. This results in a significantly longer tool life compared to standard titanium nitride or oxide coatings.
  • 🎯 【Triple-Flute Design: Smother Finish, Faster Drilling, Pinpoint Accuracy】 The innovative three-flute geometry provides three key advantages over conventional two-flute bits: superior hole roundness and wall finish, approximately 40% improved chip ejection for cooler operation, and enhanced drilling accuracy with reduced bit walk. For optimal performance, recommended for standard depth of cut applications.
  • 🛠️【Three-Flat Shank for Maximum Grip & Zero Slip】 The precision-machined three-flat shank ensures a complete lock in the drill chuck, eliminating spin-out even under high-torque conditions from impact drivers and heavy-duty drills. This guarantees full power transfer and safer operation.
  • 📦 【Comprehensive 21-Piece Professional Set】 This ready-to-use set includes 21 essential sizes from fine 1/16" to heavy-duty 1/2", covering over 90% of common metal drilling tasks. *Note: Bits 1/16" through 7/64" feature a precision two-flute design for delicate work, while sizes 3/32" and up utilize the performance triple-flute design.*
9.3
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9.2
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BOSCH CO14B 14-Piece Assorted Set with Included Case - Cobalt M42 Metal Drill Bits with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, and Light-Gauge Metal
Bosch

BOSCH CO14B 14-Piece Assorted Set with Included Case - Cobalt M42 Metal Drill Bits with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, and Light-Gauge Metal

Why we love it
  • Unmatched durability for tough jobs.
  • High heat resistance for longevity.
  • Versatile sizes for various applications.
Main Highlights
  • Cobalt M42 drill bit – provides upgraded M42 Cobalt jobber-length bits designed for durability, high heat resistance and Hardened surface for stainless steel, cast iron, titanium, light-gauge metal and aluminum
  • Enhanced M42 alloy material – contains 8% Cobalt alloy that delivers 10x life vs. Standard bits
  • High-heat resistant bits – withstand high-temperature applications for extended periods of time
  • Thick web-helix design – provides additional stability in tough applications
  • Surface-hardened tip – penetrates tough abrasive materials
  • Includes – 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 3/16", 7/32", 1/4", 5/16", 3/8", 1/2"
9.2
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9.1
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DEWALT Drill Bit Set, 21 Pc High Speed Steel DEWALT Bits, Black and Gold Oxide Coated, 135 Degree Split Point, 31 Degree Helix (DWA1181)
DEWALT

DEWALT Drill Bit Set, 21 Pc High Speed Steel DEWALT Bits, Black and Gold Oxide Coated, 135 Degree Split Point, 31 Degree Helix (DWA1181)

Why we love it
  • Versatile for various materials.
  • Enhanced chip ejection design.
  • Durable with corrosion resistance.
Main Highlights
  • DEWALT 21-pack black oxide twist drill bit set is ideal for general-purpose drilling materials like metal, hardwood, softwood, PVC and fiberglass
  • Parabolic flute design increases chip ejection in metal and wood drilling applications
  • Black oxide coating helps resist corrosion and increase durability, so your drill bits last longer
  • 135° Split-point tips drill on contact and prevents walking on the hard surface you’re working on
  • 31° Helix reduces over aggressiveness of true parabolic flute, making it ideal for drilling deep holes
  • DEWALT bit set includes: 1/16 drill bit x 2, 5/64 x2, 3/32, 7/64, 1/8 drill bits x 2, 9/64, 5/32, 11/64, 3/16 drill bit x 2, 7/32 drill bit, 15/64 drill bit, 1/4 drill bit x 2, 5/16 drill bit, 3/8 drill bit, 1/2 drill bit, 13/64
9.1
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9.1
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IRONANT Step Drill Bits, 5PCS HSS Titanium Step Drill Bit Set, 50 Sizes High Speed Steel Step Bits for Metal with Aluminum Case
IRONANT

IRONANT Step Drill Bits, 5PCS HSS Titanium Step Drill Bit Set, 50 Sizes High Speed Steel Step Bits for Metal with Aluminum Case

8% Off
Why we love it
  • Sharpness and durability guaranteed.
  • Versatile sizes for any project.
  • Convenient storage and organization included.
Main Highlights
  • HSS Titanium Coating: The step drill has excellent sharpness and durability due to its high speed steel material and titanium coating
  • 118° Split Point Tip & Dual-flute Design: increases cutting speed with self-centering and prevents walking, clears chips faster and allows particles to escape easily
  • 50 Sizes in 5 Pcs: The step drill bit kit includes 5 standard pieces with totally 50 sizes for versatility, enough for your DIY needs
  • Widely Application: Ideal for drilling holes in plastic, aluminum, iron and many other types of sheet metal (Not recommended for stainless steel & wood)
  • Equipped with a well-organized case, make it more convenient for using and storing the step drills
9.1
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9.1
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NordWolf 5-Piece M35 Cobalt Stubby Drill Bit Set for Stainless Steel & Hard Metals, with 1/4" Hex Shank for Quick Chucks & Impact Drivers, SAE Sizes 3/32"-1/8"-3/16"-1/4"-5/16" in Storage Box
NordWolf

NordWolf 5-Piece M35 Cobalt Stubby Drill Bit Set for Stainless Steel & Hard Metals, with 1/4" Hex Shank for Quick Chucks & Impact Drivers, SAE Sizes 3/32"-1/8"-3/16"-1/4"-5/16" in Storage Box

Why we love it
  • High durability M35 Cobalt steel.
  • Access hard-to-reach spaces easily.
  • Versatile for various metals.
Main Highlights
  • 【High Quality】M35 Cobalt steel precision ground drill bits for extra durability and long lifetime
  • 【Efficient Design】Stubby drill bits measure from 1.83 to 2.32-inch only, allowing access to hard-to-reach and tight spaces. 135° split point multi-blades drill tip for perfect self-centering and fast drilling
  • 【Multi-Purpose Use】Suitable for drilling stainless steel and various hardened metals such as cast iron, titanium, bronze, aluminium, etc. All drill bits come with one piece 1/4-inch hex shank compatible with standard and quick change chucks and drivers
  • 【Popular Sizes】Includes imperial sizes: 3/32", 1/8", 3/16", 1/4", 5/16"
  • 【Unique Packaging】Packed in special plastic box for easy storage, imprinted with drill bit sizes for easy identification. Sliding clip on backside of box for hanging on pegboards
9.1
Superb
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9
9.0
Superb
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
WildBossy

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

Why we love it
  • Exceptional hardness for durability.
  • Versatile for various materials.
  • Precision design ensures accuracy.
Main Highlights
  • 【5% COBALT TWIST DRILL BITS SET】Made from M35 Cobalt Steel with Molybdenum and Cobalt added to form a hardened alloy, can measure up to 67 Rockwell hardness, cut faster, last longer, and last longer than normal HSS drill bits 12 times.
  • 【SIZE】1/16x2, 5/64x2, 3/32x2, 7/64x2, 1/8x2, 9/64, 5/32, 11/64, 3/16x2, 7/32, 1/4, 5/16, 3/8, 1/2 inch bits; Comes in plastic storage case for easy storage
  • 【TWIST DESIGN AND PERFORMANCE】Precise 135° SPLIT Point, Ti Surface and 3-Flat Shank. Prevents walking and removes chips and particles faster. Precision fully ground to ensure smooth chip movement.
  • 【PROFESSIONAL AND WIDELY USED】M35 Cobalt High Speed Steel is more suitable for hardening materials. Ideal for cutting stainless steel, steel and cast iron as well as wood, aluminum alloys and other metals. Not suitable for glass or ceramic materials. Pay attention to speed, pressure and heat control when drilling.
  • 【SERVICE】If you have any problem with our metric drill bit set or are not satisfied with the product, please feel free to contact WildBossy.
9.0
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DEWALT Drill Bit Set, 3-Flats Shank,14-Piece, 135 Degree Split Point, for Plastic, Wood and Metal (DWA1184)
DEWALT

DEWALT Drill Bit Set, 3-Flats Shank,14-Piece, 135 Degree Split Point, for Plastic, Wood and Metal (DWA1184)

22% Off
Why we love it
  • Reduces walking for accuracy.
  • Durable materials for longevity.
  • Easy size identification on shank.
Main Highlights
  • 135 Degree Split point tip design to help reduce walking
  • High Speed Steel to be used in plastic, wood, and metal
  • Tapered web design for extreme durability and resisting breakage
  • Black and gold coating to help prevent rust and wear
  • 3-Flats shank to reduce spin-out in the chuck on sizes larger than 3/16-in
  • Size markings on the drill bit shank for identifying sizes quickly
9.0
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Related Deals You Might Like for Drill Bits For Drilling Through Metal

📊We scanned 1154 products
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We reviewed the most relevant Drill Bits For Drilling Through Metal offers across Amazon and leading retailers, covering major brands and models. Our shortlist features trusted names like Sinyeenglon, toolant, Drill America, Crosstar, Bosch, DEWALT, IRONANT, NordWolf, WildBossy, known for dependable quality and smart design.
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To determine today's best Drill Bits For Drilling Through Metal, we analyzed 5771 real customer and expert reviews, focusing on satisfaction, real-world performance and long-term reliability. We also weigh each review's relevance, authenticity and freshness for a fair comparison.

Here's what we found:

🏆 #1
Sinyeenglon Cobalt Drill Bit Set for Hardened Metal and Stainless Steel, 99Pcs M35 High Speed Steel Twist Jobber Metal Drill Bits 1/16"-3/8", with Plastic Index Storage Case

Our overall winner is Sinyeenglon Cobalt Drill Bit Set for Hardened Metal and Stainless Steel, 99Pcs M35 High Speed Steel Twist Jobber Metal Drill Bits 1/16"-3/8", with Plastic Index Storage Case by Sinyeenglon. It stands out for the right balance of quality, performance and value.

✨ What sets it apart:
✓Exceptional durability and hardness.
✓Convenient and organized storage.
✓Versatile sizes for various projects.
💎 Best Value
toolant Cobalt Drill Bit Set for Metal and Steel (Pro), Titanium Aluminum Nitride Coated (TiAlN) with Bullet Point Tip, for Hardened Metal, Stainless Steel, 21pcs 1/16"-1/2"

The best value for most shoppers is toolant Cobalt Drill Bit Set for Metal and Steel (Pro), Titanium Aluminum Nitride Coated (TiAlN) with Bullet Point Tip, for Hardened Metal, Stainless Steel, 21pcs 1/16"-1/2" by toolant, with consistently high satisfaction across expert and customer reviews.

💰 Best Deal
DEWALT Drill Bit Set, 3-Flats Shank,14-Piece, 135 Degree Split Point, for Plastic, Wood and Metal (DWA1184)

The strongest deal right now for Drill Bits For Drilling Through Metal is DEWALT Drill Bit Set, 3-Flats Shank,14-Piece, 135 Degree Split Point, for Plastic, Wood and Metal (DWA1184) at DEWALT, currently at 22% off.

🔄Our Drill Bits For Drilling Through Metal ranking is updated regularly to reflect new releases and price changes—check back for the latest picks and deals.