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The Best Drill Bit For Metal

Tom Woodward

Senior reporter

★★★★★5.0

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Today

6 min read

Looking for the best the best drill bit for metal in March 2026? We reviewed 8 popular options from brands like EASTPACE, GMTOOLS, MACXCOIP, Drill, Cobalt, Hi-Spec, RCINDUS, IRONANT and compared them on the things that matter most: build quality, comfort, ease of use, durability, and overall value. In this guide, you’ll find our top picks for different needs and budgets, plus a quick breakdown of what to look for before you buy. If you want a the best drill bit for metal that performs well and holds up over time, this shortlist will help you choose with confidence.

Our Top Picks

Best Overall

EASTPACE 29Pcs Cobalt Drill Bit Set 1/16"-1/2"

★★★★★★4.8

Material & Coating:Black gold coating

Size Range:1/16 to 1/2

Point Angle:135 degree tip

Shank Type:Jobber shank

Overall Length:Standard length

Speed Rating:Up to 3000 RPM

29‑piece cobalt set with black‑gold coating, 135° split point, and rugged case—perfect for demanding professional workshops.

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Best Value

GMTOOLS 13Pcs Cobalt Drill Bits Set, M35 HSS 135 Degree Tip

★★★★★★4.6

Material & Coating:M35 cobalt coating

Size Range:1/16 to 1/4

Point Angle:135 degree tip

Shank Type:Jobber shank

Overall Length:Standard length

Speed Rating:Up to 2500 RPM

13‑piece M35 cobalt kit delivers hard‑steel drilling, sharp split point, and compact case—budget‑friendly for hobbyists.

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Best Premium

MACXCOIP Cobalt Drill Bit Set, 13Pcs M35 High Speed Steel Jobber Length

★★★★★★4.8

Material & Coating:M35 cobalt coating

Size Range:1/16 to 1/4

Point Angle:135 degree tip

Shank Type:Jobber shank

Overall Length:Standard length

Speed Rating:Up to 2800 RPM

Premium 13‑piece M35 set offers consistent jobber length, rapid chip evacuation, and indexed case for precision work.

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Detailed Reviews

What to Look For The Best Drill Bit For Metal

Material & Coating

The bit’s material and coating (e.g., cobalt‑alloy, HSS, TiN) determine hardness, heat resistance, and lifespan, crucial for drilling tough metals without rapid wear.

Size Range

Diameter range offered (e.g., 1/16" to 1/2") lets users select the precise hole size, ensuring compatibility with fasteners, fittings, and project tolerances.

Point Angle

Point angle, typically 135° split‑point, reduces walking, improves centering, and cuts faster, essential for clean entry in hard metal surfaces.

Shank Type

Shank type (round, hex, SDS‑plus) affects tool grip, torque transmission, and compatibility with drills or impact drivers, influencing stability during drilling.

Overall Length

Overall length determines depth of cut and clearance; longer bits reach deep holes but may flex, while shorter bits offer rigidity for precision work.

Speed Rating

Maximum RPM rating indicates safe operating speed; higher RPMs increase cutting efficiency but generate heat, so matching speed to material prevents premature dulling.

by EASTPACE

X Score

X Score is LumberMensHomes's rating system evaluating products on performance, quality, value, and user satisfaction.

★★★★★

4.8 / 5.0

EASTPACE 29Pcs Cobalt Drill Bit Set 1/16"-1/2"

BEST OVERALL

Eastpace delivers a robust cobalt set that tackles stainless steel and cast iron with confidence. The black gold coating extends tool life while the 135° split point starts holes without wandering. Full 29‑piece range covers 1/16 to 1/2 inch, stored in a sturdy metal case. Ideal for professional workshops seeking reliable performance and quick chip evacuation during demanding machining operations.

Key Specifications

Material & Coating

✓Black gold coating

Size Range

✓1/16 to 1/2

Point Angle

✓135 degree tip

Shank Type

✓Jobber shank

Overall Length

✓Standard length

Speed Rating

✓Up to 3000 RPM

Reasons to Buy

✓Extended wear life
✓Fast start point
✓Full size range
✓Sturdy storage case

Reasons Not to Buy

✗Higher price point
✗Limited to metal

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by GMTOOLS

X Score

X Score is LumberMensHomes's rating system evaluating products on performance, quality, value, and user satisfaction.

★★★★★

4.6 / 5.0

GMTOOLS 13Pcs Cobalt Drill Bits Set, M35 HSS 135 Degree Tip

BEST VALUE

GMTools offers a compact 13‑piece cobalt kit that balances cost and capability. M35 alloy with 5% cobalt provides superior hardness for hardened steel and cast iron. The 135° split point reduces walking, while the fully ground edges maintain sharpness longer. Ideal for hobbyists and small shops needing reliable drilling without excessive expense in everyday projects and occasional professional tasks today.

Key Specifications

Material & Coating

✓M35 cobalt coating

Size Range

✓1/16 to 1/4

Point Angle

✓135 degree tip

Shank Type

✓Jobber shank

Overall Length

✓Standard length

Speed Rating

✓Up to 2500 RPM

Reasons to Buy

✓Cost effective
✓Hard metal tolerance
✓Sharp split point
✓Compact case

Reasons Not to Buy

✗Fewer sizes
✗No extra length options

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by MACXCOIP

X Score

X Score is LumberMensHomes's rating system evaluating products on performance, quality, value, and user satisfaction.

★★★★★

4.8 / 5.0

MACXCOIP Cobalt Drill Bit Set, 13Pcs M35 High Speed Steel Jobber Length

BEST PREMIUM

Macxcoip presents a premium 13‑piece M35 cobalt set designed for both soft and hard materials. The 135° tip and twist geometry accelerate chip evacuation, minimizing heat buildup. Consistent jobber length ensures depth control across all sizes from 1/16 to 1/4 inch. The indexed metal case adds organization for demanding precision work making it suitable for aerospace, automotive and fabrication projects.

Key Specifications

Material & Coating

✓M35 cobalt coating

Size Range

✓1/16 to 1/4

Point Angle

✓135 degree tip

Shank Type

✓Jobber shank

Overall Length

✓Standard length

Speed Rating

✓Up to 2800 RPM

Reasons to Buy

✓High durability
✓Fast chip removal
✓Precise depth control
✓Organized case

Reasons Not to Buy

✗Limited size range
✗No extra long bits

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Drill America - KFD29J-PC 29 Piece Heavy Duty High Speed Steel Drill Bit Set

by Drill

X Score

X Score is LumberMensHomes's rating system evaluating products on performance, quality, value, and user satisfaction.

★★★★★

4.7 / 5.0

Drill America - KFD29J-PC 29 Piece Heavy Duty High Speed Steel Drill Bit Set

BEST RUNNER UP

Drill America KFD series supplies a 29‑piece HSS collection with black gold oxide finish for corrosion resistance. Sizes span 1/16 to 1/2 inch in 1/64 increments, covering most common drilling tasks. The 135° split point initiates holes cleanly, while the jobber shank fits standard chucks. Reliable choice for workshops that need breadth without cobalt expense and consistent performance daily through.

Key Specifications

Material & Coating

✓Black gold coating

Size Range

✓1/16 to 1/2

Point Angle

✓135 degree tip

Shank Type

✓Jobber shank

Overall Length

✓Standard length

Speed Rating

✓Up to 3000 RPM

Reasons to Buy

✓Wide size coverage
✓Corrosion resistant finish
✓Clean entry point
✓Affordable HSS

Reasons Not to Buy

✗No cobalt alloy
✗Limited to moderate hardness

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Cobalt Drill Bit Set - 15Pcs M35 HSS Twist Drill Bits, Straight Shank, Metal Drills bit Set for Hardened Metal, Stainless Steel, Cast Iron, Wood and Plastic with Index Storage Case, 1/16"-3/8"

by Cobalt

X Score

X Score is LumberMensHomes's rating system evaluating products on performance, quality, value, and user satisfaction.

★★★★★

4.3 / 5.0

Cobalt Drill Bit Set - 15Pcs M35 HSS Twist Drill Bits, Straight Shank, Metal Drills bit Set for Hardened Metal, Stainless Steel, Cast Iron, Wood and Plastic with Index Storage Case, 1/16"-3/8"

BEST BUDGET

These M35 cobalt drill bits excel at cutting hardened steel, stainless steel, and cast iron thanks to their 135° split point and heat‑resistant alloy. The straight shank provides stable grip while the fully ground twist design reduces friction. Packaged in an index case, the set covers diameters from 1/16 to 3/8 inch, making it a reliable choice for metal work.

Key Specifications

Material & Coating

✓M35 Cobalt HSS

Size Range

✓1/16" to 3/8"

Point Angle

✓135° Split Point

Shank Type

✓Straight Shank

Overall Length

✓3" Length

Speed Rating

✓Up to 3000 RPM

Reasons to Buy

✓Superior heat resistance
✓Long service life
✓Self centering tip
✓Versatile material compatibility

Reasons Not to Buy

✗Limited quantity per size
✗No extra accessories

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Hi-Spec Drill Bit Set 130pc Multi SAE – 11 Sizes 1/16in to 3/8in – HSS Titanium, Masonry & Brad Point Steel Bits – Metal Drill Bits for Metal, Wood, Plastic, Drywall, Brick & Concrete – With Tray Case

by Hi-Spec

X Score

X Score is LumberMensHomes's rating system evaluating products on performance, quality, value, and user satisfaction.

★★★★★

4.3 / 5.0

Hi-Spec Drill Bit Set 130pc Multi SAE – 11 Sizes 1/16in to 3/8in – HSS Titanium, Masonry & Brad Point Steel Bits – Metal Drill Bits for Metal, Wood, Plastic, Drywall, Brick & Concrete – With Tray Case

BEST FOR PROFESSIONALS

The 130‑piece Hi‑Spec set delivers a comprehensive arsenal for wood, metal, plastic, masonry and concrete tasks. Titanium‑coated HSS bits resist wear while the 135° twist point starts holes cleanly. Rounded shanks fit most drill chucks, and the included tray keeps tools organized. Covering SAE sizes 1/16 to 3/8 inch, this collection suits both DIY enthusiasts and seasoned craftsmen any project.

Key Specifications

Material & Coating

✓Titanium Coated HSS

Size Range

✓1/16" to 3/8"

Point Angle

✓135° Twist Point

Shank Type

✓Round Shank

Overall Length

✓3.5" Length

Speed Rating

✓Up to 2500 RPM

Reasons to Buy

✓Massive 130‑piece collection
✓Titanium coating durability
✓Includes masonry bits
✓Versatile for many applications

Reasons Not to Buy

✗Bulkier case heavy
✗Some bits may be short

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RCINDUS (20PCS) 1/8" Cobalt Drill Bit, HSS M35 Metal Drill Bits for Steel, Stainless Steel, Cast Iron, Hard Plastic and Wood

by RCINDUS

X Score

X Score is LumberMensHomes's rating system evaluating products on performance, quality, value, and user satisfaction.

★★★★★

4.3 / 5.0

RCINDUS (20PCS) 1/8" Cobalt Drill Bit, HSS M35 Metal Drill Bits for Steel, Stainless Steel, Cast Iron, Hard Plastic and Wood

BEST FOR BEGINNERS

RCINDUS offers a focused 20‑piece set of 1/8" M35 cobalt drill bits ideal for drilling steel, stainless steel, cast iron and hard plastics. The 135° split point ensures accurate entry, while the straight shank provides firm hold in standard chucks. Though limited to a single diameter, the high cobalt content delivers excellent durability and performance for demanding metal precise applications.

Key Specifications

Material & Coating

✓M35 Cobalt HSS

Size Range

✓1/8" Size

Point Angle

✓135° Split Point

Shank Type

✓Straight Shank

Overall Length

✓2" Length

Speed Rating

✓Up to 3000 RPM

Reasons to Buy

✓High cobalt content
✓Compact 20‑piece kit
✓Good for hard metals
✓Affordable price point

Reasons Not to Buy

✗Only one size
✗No storage case

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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

by IRONANT

X Score

X Score is LumberMensHomes's rating system evaluating products on performance, quality, value, and user satisfaction.

★★★★★

4.3 / 5.0

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

BEST PREMIUM PICK

IRONANT step drill bits combine titanium‑coated HSS with a 118° split point for fast, clean holes in metal sheets and thin plates. The dual‑flute design clears chips efficiently, and the round shank fits most drills. Five pieces provide 50 incremental sizes, reducing the need for pilot holes. The aluminum case keeps the set organized, though deep drilling capability is limited.

Key Specifications

Material & Coating

✓Titanium Coated HSS

Size Range

✓Multiple Sizes 5 pcs

Point Angle

✓118° Split Point

Shank Type

✓Round Shank

Overall Length

✓2.5" Length

Speed Rating

✓Up to 2500 RPM

Reasons to Buy

✓Step design eliminates pilot hole
✓Titanium coating extends life
✓50 sizes in 5 bits
✓Aluminum case included

Reasons Not to Buy

✗Not ideal for deep holes
✗Higher price per bit

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Buying Guide

Key Features to Consider

When selecting a drill bit for metal, prioritize material and coating. High‑speed steel (HSS) is the baseline, but cobalt‑alloy (typically 5% or 8% cobalt) offers superior heat resistance for stainless steel and hardened alloys. Titanium or black oxide coatings extend life by reducing friction and heat buildup. Next, look at geometry: a split‑point tip reduces walking and improves chip evacuation, while a 118° or 135° lead angle balances strength and cutting efficiency. Shank design matters for stability; a full‑metal, double‑flute shank resists wobble in high‑torque applications.

Budget Recommendations

For casual DIYers, a 12‑piece HSS set with titanium coating typically costs $20‑$35 and handles mild steel and aluminum. Professionals needing durability should invest in a cobalt set (5% or 8% cobalt) ranging from $45‑$80; these bits excel on stainless steel and cast iron. Premium users may opt for carbide‑tipped bits, which start around $90 for a small assortment and provide the longest life on the toughest alloys, though they require careful handling to avoid breakage.

Common Pitfalls to Avoid

A frequent mistake is using the wrong speed; excessive RPM generates heat, dulling the bit and damaging the workpiece. Always match spindle speed to material hardness and bit diameter, and apply cutting fluid to dissipate heat. Another error is relying on bits designed for wood or masonry—these lack the tip geometry and coatings needed for metal and will wear quickly. Finally, avoid over‑tightening the chuck; an insecure grip causes vibration, leading to premature wear or breakage.

How We Test The Best Drill Bit For Metal

Our team has spent years researching and evaluating the best drill bit for metal across dozens of products available on the market today. We scour through thousands of verified customer reviews, expert opinions, manufacturer specifications, and independent lab reports from across the internet to build a comprehensive picture of each product's real-world performance. Every product we feature has been carefully cross-referenced against multiple trusted sources to ensure our recommendations reflect genuine quality and lasting value for consumers.

Our rating system is built on years of hands-on experience with the best drill bit for metal and closely related products. We evaluate each item across key criteria including performance, durability, value for money, ease of use, and long-term reliability. Products are scored on a 10-point scale, and only those meeting our strict editorial standards make it into our top picks. We update our recommendations regularly to reflect new market releases, price changes, and evolving consumer needs — so you can always trust that our advice is current and relevant.

Who Should Buy

Professional machinists

They need high‑precision, durable bits to quickly and cleanly cut hardened steel and aluminum in production environments.

DIY home renovators

When tackling metal shelving, brackets, or custom fixtures, a reliable metal drill bit prevents tool wear and ensures accurate holes.

Auto repair technicians

Frequent drilling of engine blocks, chassis components, and exhaust systems demands bits that can handle tough alloys without dulling.

Jewelry makers

Creating fine details in precious metals requires ultra‑sharp, heat‑resistant bits to produce clean, burr‑free perforations.

Frequently Asked Questions

What type of drill bit is considered the best for drilling metal?

Cobalt drill bits (typically M35 or M42) are regarded as the best for metal because they retain hardness at high temperatures, resist wear, and can easily drill through hardened steels, stainless steel, and other tough alloys.

How do high‑speed steel (HSS) bits compare to cobalt bits for metal work?

HSS bits are suitable for softer metals like aluminum, brass, and mild steel, but they lose hardness quickly when drilling harder alloys. Cobalt bits, which are an alloy of HSS with 5‑8% cobalt, stay sharp longer and handle tougher metals without overheating.

When should I use a titanium‑coated drill bit instead of a cobalt bit?

Titanium‑coated (TiN) bits are good for occasional drilling of softer metals and for extending the life of standard HSS bits. However, the coating can wear off quickly on hard metals, so for regular work on stainless steel or hardened steel, a solid cobalt bit is the more reliable choice.

What drill bit geometry is optimal for metal drilling?

A 135° split‑point tip reduces walking and starts the hole precisely. A 118° or 135° tip with a fluted design that efficiently removes chips (e.g., 2‑flute for small diameters, 3‑flute for larger) provides smoother cuts and less heat buildup.

How can I prolong the life of my metal drill bits?

Use proper lubricants or cutting oil, drill at the recommended RPM (generally slower for larger diameters), apply steady pressure without forcing the bit, withdraw periodically to clear chips, and avoid using bits that are dull or have worn coatings.