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Set Best Drill Bit For Metal

Tom Woodward

Senior reporter

★★★★★5.0

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Today

7 min read

Looking for the best set best drill bit for metal in March 2026? We reviewed 8 popular options from brands like DEWALT, BOSCH, CaRoller, Cobalt, MACXCOIP 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 set 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

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

★★★★★★4.8

Coating Material:Titanium Nitride coating

Size Range:1/16‑ to 1/2‑in

Point Design:Pilot point tip

Shank Type:No spin shank

Bit Length & Web:Jobber length web

Quantity & Storage:21 pcs with case

Titanium‑nitride coated bits with pilot point and no‑spin shank deliver precise, long‑lasting holes in tough metals.

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Best Value

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

★★★★★★4.7

Coating Material:No coating

Size Range:1/8‑ to 3/8‑in

Point Design:135 degree split point

Shank Type:3‑flat shank

Bit Length & Web:Standard length reinforced web

Quantity & Storage:14 pcs with compact case

135° split‑point design stops walking, while HSS and tapered web ensure strength across plastic, wood, and metal.

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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

Coating Material:M42 cobalt alloy

Size Range:1/16‑ to 1/2‑in

Point Design:Standard point tip

Shank Type:Three‑flat shank

Bit Length & Web:Jobber length thick web

Quantity & Storage:14 pcs with sturdy case

M42 cobalt bits resist extreme heat, with thick web and three‑flat shank for reliable drilling of stainless steel and titanium.

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Detailed Reviews

What to Look For Set Best Drill Bit For Metal

Coating Material

Determines wear resistance and friction reduction; titanium nitride or carbide coatings extend life when drilling hardened metals and improve hole finish.

Size Range

Specifies the smallest to largest diameters included, ensuring the set covers common metal‑drilling needs from fine pilot holes to larger clearance cuts.

Point Design

Pilot or split‑point tips start holes on contact, reducing walking and improving accuracy, especially important for hard or non‑ferrous metals.

Shank Type

Defines compatibility with drills—no‑spin, hex, or SDS shanks affect torque transfer, wobble prevention, and the ability to use quick‑change systems.

Bit Length & Web

Longer bits reach deeper cuts; a tapered or reinforced web increases strength and minimizes breakage when applying high cutting forces on metal.

Quantity & Storage

Number of bits and quality of the case influence organization, portability, and quick access on job sites, impacting overall workflow efficiency.

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

BEST OVERALL

These DEWALT bits excel in metal work thanks to a titanium nitride coating that resists wear. The pilot point starts on contact, producing tidy holes without wandering. Jober length provides reach, while the no‑spin shank stays centered in the chuck. The 21‑piece molded case keeps bits organized, making them ready for any job. They perform reliably on stainless steel regularly.

Key Specifications

Coating Material

✓Titanium Nitride coating

Size Range

✓1/16‑ to 1/2‑in

Point Design

✓Pilot point tip

Shank Type

✓No spin shank

Bit Length & Web

✓Jobber length web

Quantity & Storage

✓21 pcs with case

Reasons to Buy

✓Long life coating
✓Clean start holes
✓Precise pilot tip
✓Durable case storage

Reasons Not to Buy

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

BEST VALUE

The DEWALT DWA1184 set handles plastic, wood and metal with ease thanks to a 135 degree split point that prevents walking. High speed steel construction offers strength, while the tapered web adds durability against breakage. The 3‑flat shank fits most chucks securely. All fourteen bits arrive in a compact case, ready for everyday projects. Works great on aluminum alloy parts.

Key Specifications

Coating Material

✓No coating

Size Range

✓1/8‑ to 3/8‑in

Point Design

✓135 degree split point

Shank Type

✓3‑flat shank

Bit Length & Web

✓Standard length reinforced web

Quantity & Storage

✓14 pcs with compact case

Reasons to Buy

✓Split point reduces walking
✓Tapered web resists breakage
✓Versatile material compatibility
✓Durable high speed steel

Reasons Not to Buy

✗Limited to smaller diameters
✗No coating for corrosion

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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

Bosch CO14B bits feature M42 cobalt alloy that endures extreme heat and prolongs tool life. The standard point starts cleanly, while the three‑flat shank guarantees secure chuck grip. Thick web construction adds strength for drilling stainless steel, cast iron and titanium. Fourteen sizes come in a rugged case, making the set ideal for demanding professional applications. Works well on aluminum.

Key Specifications

Coating Material

✓M42 cobalt alloy

Size Range

✓1/16‑ to 1/2‑in

Point Design

✓Standard point tip

Shank Type

✓Three‑flat shank

Bit Length & Web

✓Jobber length thick web

Quantity & Storage

✓14 pcs with sturdy case

Reasons to Buy

✓Extreme heat resistance
✓Exceptional durability
✓Excellent for stainless steel
✓High cobalt content

Reasons Not to Buy

✗Higher cost
✗Limited to smaller sizes

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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 delivers reliable performance on metal, hardwood, PVC and fiberglass thanks to a 135 degree split point that starts holes accurately. Black oxide coating protects against rust, while the 31 degree helix efficiently ejects chips. Standard shank fits most chucks and the molded case keeps all bits organized for quick job changes. Works well on aluminum parts.

Key Specifications

Coating Material

✓Black oxide coating

Size Range

✓1/16‑ to 1/2‑in

Point Design

✓135 degree split point

Shank Type

✓Standard shank

Bit Length & Web

✓31 degree helix jobber length

Quantity & Storage

✓21 pcs with molded case

Reasons to Buy

✓Split point reduces walking
✓31° helix clears chips
✓Black oxide resists corrosion
✓Versatile across materials

Reasons Not to Buy

✗Helix may cause chatter in hard metal
✗No extra durability coating

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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.

★★★★★

4.3 / 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 BUDGET

The CaRoller 29‑piece set offers a solid entry level for metal work. Its high speed steel with black and gold finish resists wear, while the 135° split point starts holes accurately. The indexed metal case keeps sizes organized. Bit lengths suit most hand drills, and the price makes it attractive for hobbyists and light‑duty tasks in everyday projects and repairs.

Key Specifications

Coating Material

✓Black Oxide Coating

Size Range

✓1/16"-1/2" Size Range

Point Design

✓135° Split Point

Shank Type

✓Round Straight Shank

Bit Length & Web

✓Jobber Length 3" Web

Quantity & Storage

✓29 pcs Metal Case

Reasons to Buy

✓Durable high speed steel
✓Accurate split point
✓Comprehensive size set
✓Convenient metal case

Reasons Not to Buy

✗Limited to light duty
✗No coating for extreme heat

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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.

★★★★★

4.4 / 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 FOR PROFESSIONALS

The Cobalt 29‑piece M35 set meets professional expectations for hardened metal drilling. Cobalt alloy adds heat resistance, while the 135° split point reduces walk‑off and speeds entry. Fully ground twists clear chips, keeping temperature low. The metal index box organizes the extensive range, and the jobber length fits most bench drills for consistent performance in daily industrial tasks and projects.

Key Specifications

Coating Material

✓Cobalt Alloy Coating

Size Range

✓1/16"-1/2" Range

Point Design

✓135° Split Point

Shank Type

✓Round Straight Shank

Bit Length & Web

✓Jobber Length 3" Web

Quantity & Storage

✓29 pcs Metal Box

Reasons to Buy

✓High heat resistance
✓Self‑centering point
✓Efficient chip removal
✓Robust metal case

Reasons Not to Buy

✗Higher price point
✗May wear on very soft material

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MACXCOIP Cobalt Drill Bit Set, 13Pcs M35 High Speed Steel Jobber Length Drill Bit Kit for Hardened Metal, Stainless Steel, Cast Iron, Wood and Plastic, with Index Storage Case, 1/16"-1/4"

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, 13Pcs M35 High Speed Steel Jobber Length Drill Bit Kit for Hardened Metal, Stainless Steel, Cast Iron, Wood and Plastic, with Index Storage Case, 1/16"-1/4"

BEST FOR BEGINNERS

The MACXCOIP 13‑piece M35 set offers beginners a reliable introduction to metal drilling. Cobalt steel provides extra hardness, and the 135° split point starts holes without wandering. Twist geometry clears debris quickly, while the short jobber length works well in compact drills. The indexed case keeps bits orderly, making setup straightforward for new users and improves confidence quickly during projects.

Key Specifications

Coating Material

✓M35 Cobalt Coating

Size Range

✓1/16"-1/4" Range

Point Design

✓135° Split Point

Shank Type

✓Round Straight Shank

Bit Length & Web

✓Jobber Length 2" Web

Quantity & Storage

✓13 pcs Indexed Case

Reasons to Buy

✓Easy start point
✓Durable cobalt steel
✓Compact storage case
✓Suitable for small drills

Reasons Not to Buy

✗Limited size range
✗Shorter length may restrict deep holes

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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.

★★★★★

4.5 / 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 PREMIUM PICK

The MACXCOIP 29‑piece M35 cobalt set delivers premium performance across a full spectrum of metal applications. Enhanced cobalt alloy resists extreme heat, while the 135° split point ensures precise entry. Fully ground twists evacuate chips efficiently, reducing friction. Jobber lengths accommodate most bench drills, and the sturdy metal index box protects the extensive assortment for demanding tasks in professional workshops.

Key Specifications

Coating Material

✓M35 Cobalt Coating

Size Range

✓1/16"-1/2" Range

Point Design

✓135° Split Point

Shank Type

✓Round Straight Shank

Bit Length & Web

✓Jobber Length 3" Web

Quantity & Storage

✓29 pcs Metal Box

Reasons to Buy

✓Superior heat resistance
✓Precise entry point
✓Efficient chip removal
✓Robust storage solution

Reasons Not to Buy

✗Higher cost
✗May be overkill for light jobs

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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 a baseline, but cobalt‑alloy or carbide tips provide superior heat resistance and longevity for tougher alloys. Look for TiN, TiAlN, or black oxide coatings, which reduce friction and extend bit life. Additionally, verify the shank type (round, hex, or SDS‑plus) for compatibility with your chuck and the recommended size range for the thickness of the metal you’ll be drilling.

Budget Recommendations

For occasional hobby work, a 5‑piece HSS set priced between $15‑$25 offers adequate performance on mild steel and aluminum. Professionals tackling stainless steel or hardened alloys should invest in a cobalt‑alloy set, typically $30‑$60, which delivers better durability and faster cutting speeds. Premium carbide‑tipped or titanium‑coated kits range from $80‑$150 and are justified for high‑volume production or aerospace‑grade materials where bit wear must be minimized.

Common Pitfalls to Avoid

Do not use bits designed for wood or masonry on metal; they lack the necessary hardness and will dull quickly. Avoid excessive feed pressure—pushing too hard generates heat that can soften the bit and warp the workpiece. Lastly, neglecting proper lubrication (cutting oil or coolant) is a frequent error; it reduces friction, prevents chip welding, and prolongs bit life.

How We Test Set Best Drill Bit For Metal

Our team has spent years researching and evaluating set 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 set 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 metal fabricators

They need reliable, high‑speed steel or carbide bits to maintain precision and reduce tool wear on repetitive production runs.

Automotive mechanics

Drilling through engine blocks, brackets, and exhaust components requires durable bits that can handle tough alloys without slipping.

DIY home‑renovation enthusiasts

When installing railings, shelving, or custom hardware, a quality metal‑drill‑bit set ensures clean holes and prevents damage to tools.

Jewelry makers and metal artists

Fine, small‑diameter bits are essential for accurately drilling precious‑metal pieces without cracking or deforming the work.

Frequently Asked Questions

What type of drill bit is best for drilling into metal?

Cobalt or high‑speed steel (HSS) drill bits are the most common choices for metal. Cobalt bits (typically 5% or 8% cobalt alloy) retain hardness at higher temperatures and are ideal for stainless steel and tough alloys, while standard HSS bits work well on softer metals like aluminum, brass, and mild steel.

How do I choose the right size and length of drill bit for a metal project?

Select a bit whose shank matches your drill’s chuck (usually 1/4", 3/8", or 1/2"). For diameter, match the hole size required by the design or fastener. Length matters for deep holes; use a job‑specific length (e.g., 1‑inch for shallow countersinks, 2‑inch or longer for deep through‑holes). If you need extra reach, consider a step drill or an extension collet.

What cutting speed (RPM) should I use when drilling metal?

Metal requires slower spindle speeds than wood or plastic. A good rule of thumb is: RPM = (Cutting Speed × 12) / (π × Diameter). For example, for a 1/8" (0.125") HSS bit in mild steel (cutting speed ≈ 30 ft/min), RPM ≈ 9,200. For stainless steel with a cobalt bit (cutting speed ≈ 20 ft/min), the same diameter yields ≈ 6,100 RPM. Always start slower and increase only if the bit cuts cleanly without excess heat.

Do I need to use lubrication or coolant when drilling metal?

Yes. Lubrication reduces friction, heat, and tool wear. For most metals, a few drops of cutting oil or a light machine‑oil spray on the bit and workpiece are sufficient. For harder alloys (stainless steel, titanium), use a heavier-duty coolant such as a water‑soluble cutting fluid or a dedicated metal‑drilling oil. Apply continuously while drilling to keep the bit cool.

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

1. Use the correct bit material (cobalt for hard alloys, HSS for softer metals). 2. Keep the bit sharp—if you hear chatter or the hole starts to tear, sharpen or replace the bit. 3. Drill at the proper speed and feed rate; avoid forcing the bit. 4. Apply adequate lubrication or coolant to prevent overheating. 5. Store bits in a dry, organized case to avoid corrosion and physical damage.