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The Best Drill Bit Set For Metal

Tom Woodward

Senior reporter

★★★★★5.0

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Today

6 min read

Looking for the best the best drill bit set for metal in March 2026? We reviewed 8 popular options from brands like DEWALT, BOSCH, Cobalt, CaRoller, MACXCOIP, ENERTWIST 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 set for metal that performs well and holds up over time, this shortlist will help you choose with confidence.

Our Top Picks

Best Overall

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

★★★★★★4.8

Material Composition:High Speed Steel

Tip Angle:135 Degree Split

Shank Design:Three Flat Shank

Size Range:1/16‑1/4 inch

Coating Type:Uncoated

Set Quantity:14 Pieces

Compact 14‑piece set with 135° split‑point and three‑flat shank delivers fast, walk‑free drilling on metal, wood, plastic.

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Best Value

DEWALT Titanium Nitride Coated Drill Bit Set, Pilot Point, 21-Piece (DW1361)

★★★★★★4.7

Material Composition:Titanium Nitride Coated

Tip Angle:Pilot Point

Shank Design:Straight Shank

Size Range:1/8‑1/2 inch

Coating Type:TiN Coating

Set Quantity:21 Pieces

21‑piece titanium‑nitride set with pilot point starts drilling instantly, extends life, and fits standard chucks cost‑effectively.

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Best Premium

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

★★★★★★4.8

Material Composition:M42 Cobalt Alloy

Tip Angle:Standard 135 Degree

Shank Design:Three Flat Shank

Size Range:1/16‑5/32 inch

Coating Type:No Coating

Set Quantity:14 Pieces

Bosch 14‑piece M42 cobalt set resists extreme heat, offers ten‑times lifespan, secure three‑flat shank, includes case.

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Detailed Reviews

What to Look For The Best Drill Bit Set For Metal

Material Composition

Determines cutting ability, heat resistance, and lifespan when drilling hardened metals; higher alloy content reduces wear and prevents dulling while maintaining precision.

Tip Angle

Reduces walking on the workpiece, ensures accurate start and clean entry, especially important for hard alloys where misalignment can cause burrs.

Shank Design

Provides secure grip in the chuck, minimizes spin‑out during high torque drilling, and allows quick bit changes, crucial for consistent metal drilling performance.

Size Range

Covers common diameters from small pilot holes to larger clearance holes, ensuring versatility for various metal thicknesses and project requirements without needing multiple sets.

Coating Type

Enhances hardness, reduces friction, and protects against rust, extending bit life and maintaining cutting efficiency when drilling abrasive metal surfaces.

Set Quantity

Determines project readiness; larger sets offer more size options and reduce the need for additional purchases, saving time and cost for frequent metalworking.

by DEWALT

X Score

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

★★★★★

4.8 / 5.0

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

BEST OVERALL

The DEWALT 14‑piece set delivers reliable performance on metal, wood and plastic. The 135 degree split point reduces walking and starts on contact, while the three‑flat shank fits most keyed chucks. High speed steel construction offers good durability, and the tapered web adds strength. Ideal for professionals who need a compact, versatile kit for everyday jobs and reliable results today.

Key Specifications

Material Composition

✓High Speed Steel

Tip Angle

✓135 Degree Split

Shank Design

✓Three Flat Shank

Size Range

✓1/16‑1/4 inch

Coating Type

✓Uncoated

Set Quantity

✓14 Pieces

Reasons to Buy

✓Reduces walking
✓Starts on contact
✓Durable construction
✓Compact size

Reasons Not to Buy

✗No coating
✗Limited size range

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by DEWALT

X Score

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

★★★★★

4.7 / 5.0

DEWALT Titanium Nitride Coated Drill Bit Set, Pilot Point, 21-Piece (DW1361)

BEST VALUE

The DEWALT 21‑piece titanium nitride set excels on metal and wood thanks to its pilot point tip that begins drilling immediately. The coating provides high surface hardness and extends tool life. Straight shanks fit standard chucks without wobble. Black oxide free design keeps costs low while delivering consistent performance for hobbyists and light‑duty professionals alike in a reliable package today.

Key Specifications

Material Composition

✓Titanium Nitride Coated

Tip Angle

✓Pilot Point

Shank Design

✓Straight Shank

Size Range

✓1/8‑1/2 inch

Coating Type

✓TiN Coating

Set Quantity

✓21 Pieces

Reasons to Buy

✓Longer tool life
✓Immediate start
✓Standard shank fit
✓Cost effective

Reasons Not to Buy

✗No black oxide
✗Limited to medium sizes

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by BOSCH

X Score

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

★★★★★

4.8 / 5.0

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

BEST PREMIUM

The Bosch CO14B 14‑piece cobalt M42 collection targets demanding metalwork such as stainless steel, cast iron and titanium. Eight percent cobalt alloy raises heat resistance and offers roughly ten times the lifespan of ordinary bits. The three‑flat shank ensures secure grip, while the varied size range covers common industrial holes. The sturdy case adds organization for shop floor use daily.

Key Specifications

Material Composition

✓M42 Cobalt Alloy

Tip Angle

✓Standard 135 Degree

Shank Design

✓Three Flat Shank

Size Range

✓1/16‑5/32 inch

Coating Type

✓No Coating

Set Quantity

✓14 Pieces

Reasons to Buy

✓Extreme heat resistance
✓Very long lifespan
✓Secure three‑flat shank
✓Organized carrying case

Reasons Not to Buy

✗Higher price point
✗Limited size variety

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DEWALT Drill Bit Set, 21-Piece, 135 Degree Split Point, 31 Degree Helix, Black Oxide Coated, For Plastic, Wood and Metal (DWA1181)

by DEWALT

X Score

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

★★★★★

4.7 / 5.0

DEWALT Drill Bit Set, 21-Piece, 135 Degree Split Point, 31 Degree Helix, Black Oxide Coated, For Plastic, Wood and Metal (DWA1181)

BEST RUNNER UP

The DEWALT 21‑piece set balances versatility and durability for metal, wood and plastics. A 135 degree split point minimizes walk, while the 31 degree helix improves chip evacuation. Black oxide coating resists corrosion and extends life. The three‑flat shank fits most keyed chucks, and the parabolic flute design delivers smoother cuts across a broad size spectrum in professional projects daily.

Key Specifications

Material Composition

✓High Speed Steel

Tip Angle

✓135 Degree Split

Shank Design

✓Three Flat Shank

Size Range

✓1/16‑5/32 inch

Coating Type

✓Black Oxide

Set Quantity

✓21 Pieces

Reasons to Buy

✓Reduced walking
✓Efficient chip removal
✓Corrosion resistant coating
✓Broad size range

Reasons Not to Buy

✗No cobalt for hard metals
✗Standard durability

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$Cobalt Drill Bit Set - 29Pcs M35 High Speed Steel Twist Drill Bits for Hardened Metals, Stainless Steel, Cast Iron and Wooden Plastics with Metal Index Storage Box, 1/16\"-1/2\"$

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 - 29Pcs M35 High Speed Steel Twist Drill Bits for Hardened Metals, Stainless Steel, Cast Iron and Wooden Plastics with Metal Index Storage Box, 1/16\"-1/2\"

BEST BUDGET

The Cobalt 29‑piece set delivers reliable performance on hardened steel, stainless, cast iron and plastics. M35 alloy provides heat resistance while the 135° split point reduces walk‑off. Fully ground twist flutes clear chips quickly, extending bit life. The indexed metal case keeps sizes organized. Ideal for hobbyists who need durable bits without a premium price tag and reliable for projects.

Key Specifications

Material Composition

✓M35 Cobalt

Tip Angle

✓135° Split Point

Shank Design

✓Round Shank

Size Range

✓1/16\"-1/2\"

Coating Type

✓None

Set Quantity

✓29 Pieces

Reasons to Buy

✓Heat resistant alloy
✓Self‑centering tip
✓Chip‑clearing flutes
✓Organized storage case

Reasons Not to Buy

✗No titanium coating
✗Higher price than basic HSS

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$CaRoller 29Pcs Drill Bit Set, 135 Degree Tip High Speed Steel with Black and Gold Finish, Stainless Steel, Plastic and Wood with Metal Indexed Storage Case 1/16\"-1/2\" (29pcs Black and Gold)$

by CaRoller

X Score

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

★★★★★

4.4 / 5.0

CaRoller 29Pcs Drill Bit Set, 135 Degree Tip High Speed Steel with Black and Gold Finish, Stainless Steel, Plastic and Wood with Metal Indexed Storage Case 1/16\"-1/2\" (29pcs Black and Gold)

BEST FOR PROFESSIONALS

The CaRoller 29‑piece collection offers a broad metric progression from 1/16" to 1/2" with a striking black‑gold finish. Constructed from W4 high‑speed steel, the 135° tip provides accurate start‑holes and reduced walking. Amber coating adds wear resistance, while the metal indexed case simplifies retrieval. Suitable for both DIY projects and light professional tasks and can handle occasional metal drilling jobs.

Key Specifications

Material Composition

✓W4 High Speed Steel

Tip Angle

✓135° Tip

Shank Design

✓Round Shank

Size Range

✓1/16\"-1/2\"

Coating Type

✓Amber Finish

Set Quantity

✓29 Pieces

Reasons to Buy

✓Wide size selection
✓Durable amber coating
✓Attractive black‑gold finish
✓Indexed storage case

Reasons Not to Buy

✗No cobalt alloy
✗Slightly heavier bits

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$MACXCOIP Cobalt Drill Bit Set, 29Pcs M35 High Speed Steel Bits for Hardened Metals, Stainless Steel, Cast Iron and Wooden Plastics, with Metal Index Storage Box, 1/16\"-1/2\"$

by MACXCOIP

X Score

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

★★★★★

4.3 / 5.0

MACXCOIP Cobalt Drill Bit Set, 29Pcs M35 High Speed Steel Bits for Hardened Metals, Stainless Steel, Cast Iron and Wooden Plastics, with Metal Index Storage Box, 1/16\"-1/2\"

BEST FOR BEGINNERS

The MACXCOIP 29‑piece cobalt set mirrors many competitors but adds a polished finish for smoother entry. M35 alloy ensures hardness while the 135° point minimizes drift. Twist flutes expel chips efficiently, extending lifespan. The metal index box keeps each diameter visible. Great for beginners seeking reliable performance without excessive cost and provides confidence when drilling into stainless steel components today.

Key Specifications

Material Composition

✓M35 Cobalt

Tip Angle

✓135° Split Point

Shank Design

✓Round Shank

Size Range

✓1/16\"-1/2\"

Coating Type

✓None

Set Quantity

✓29 Pieces

Reasons to Buy

✓Hardness for stainless
✓Self‑centering tip
✓Efficient chip removal
✓Clear storage case

Reasons Not to Buy

✗No protective coating
✗Slightly higher price

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ENERTWIST Titanium Drill Bit Kit Set for Metal and Wood 230-Piece - Coated HSS Conventional 118 Deg Tip from 3/64inch up to 1/2 Inch, ET-DBA-230A

by ENERTWIST

X Score

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

★★★★★

4.5 / 5.0

ENERTWIST Titanium Drill Bit Kit Set for Metal and Wood 230-Piece - Coated HSS Conventional 118 Deg Tip from 3/64inch up to 1/2 Inch, ET-DBA-230A

BEST PREMIUM PICK

The ENERTWIST 230‑piece kit covers sizes from 3/64" to 1/2" with a robust plastic case. Titanium coating reduces heat buildup, extending tool life up to six times longer than standard HSS. 118° tip offers stable entry in metal and wood, while the large assortment satisfies most workshop needs. Not intended for masonry applications and provides reliable performance for precision projects.

Key Specifications

Material Composition

✓High Speed Steel

Tip Angle

✓118° Tip

Shank Design

✓Round Shank

Size Range

✓3/64\"-1/2\"

Coating Type

✓Titanium Coating

Set Quantity

✓230 Pieces

Reasons to Buy

✓Long life coating
✓Vast size range
✓Durable plastic case
✓Good for metal and wood

Reasons Not to Buy

✗Not for masonry
✗Coating may wear over time

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Buying Guide

Key Features to Consider

For metal drilling, prioritize bits made from high‑speed steel (HSS) with cobalt or titanium nitride (TiN) coating; these retain hardness at elevated temperatures and resist wear. Look for a full‑size (¼‑inch) hex shank for secure chuck engagement, a comprehensive size range (1 mm to 13 mm) to handle various tasks, and a balanced length that offers rigidity without excessive flex.

Budget Recommendations

Entry‑level sets under $30 typically offer basic HSS bits with limited size coverage—suitable for occasional DIY work. Mid‑range kits $30‑$80 often include cobalt or TiN‑coated bits, a broader assortment, and a durable case, striking a good value for hobbyists and small‑shop professionals. Premium collections above $80 feature premium cobalt alloys, ergonomic packaging, and lifetime warranties, ideal for heavy‑duty machining and frequent use.

Common Pitfalls to Avoid

Never run metal bits at excessive speeds; high RPM generates heat that dulls the cutting edge and can cause work‑piece distortion. Avoid cheap, uncoated HSS bits for hardened steel—they wear quickly and risk breakage. Also, steer clear of using impact drivers with drill bits, as torque spikes can snap the shank, and always secure the workpiece to prevent wobble and inaccurate holes.

How We Test The Best Drill Bit Set For Metal

Our team has spent years researching and evaluating the best drill bit set 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 set 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

Automotive mechanics

They regularly drill into steel and aluminum engine parts, requiring durable bits that stay sharp under high torque.

Metal fabricators / welders

Precision drilling of sheet metal and structural steel is essential to fit components and maintain tight tolerances.

DIY home‑renovation enthusiasts

When installing hardware on metal studs or custom metal fixtures, a quality bit set prevents breakage and saves time.

Hobbyist metal model builders

Small‑scale projects demand fine, high‑speed bits that can cleanly bore into brass, copper, and stainless steel without splintering.

Frequently Asked Questions

What type of drill bits are best suited for drilling metal?

Cobalt alloy (often labeled M35 or M42) and high‑speed steel (HSS) bits are the most effective. Cobalt bits retain hardness at high temperatures and last longer on harder alloys, while HSS bits are versatile and work well on softer metals like aluminum and mild steel.

How many pieces should a comprehensive metal drill bit set include?

A well‑rounded set typically contains 30–45 bits ranging from 1 mm (0.039 in) to 13 mm (½ in). This size spread covers most DIY and professional tasks, from pilot holes to larger clearance holes. Some sets also add step bits or specialty sizes for sheet metal.

What features indicate a high‑quality metal drill bit set?

Look for bits with a titanium nitride (TiN) coating or a cobalt alloy core, a split‑point tip to reduce walking, a balanced length‑to‑diameter ratio for rigidity, and a sturdy, organized case that protects the bits from damage.

Do I need a special drill or speed setting when using metal drill bits?

Yes. Use a variable‑speed drill and run at lower RPMs (about 500–1,500 RPM) for larger diameters and harder metals. Higher speeds (1,500–3,000 RPM) work for small bits in softer metals. Always apply steady pressure and use cutting fluid to keep the bits cool and extend their life.

Can a drill bit set for metal also be used on wood or masonry?

Cobalt and HSS bits can drill wood, but they are over‑engineered and may dull faster than wood‑specific bits. They should never be used on masonry; for concrete or brick you need carbide‑tipped masonry bits. Using the metal set for its intended purpose ensures optimal performance and longevity.