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Best 5 8 Drill Bit For Steel

Tom Woodward

Senior reporter

★★★★★5.0

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Today

6 min read

Looking for the best 5 8 drill bit for steel in March 2026? We reviewed 8 popular options from brands like VALYRIANTOOL, 5/8, ANGELSWORD, Drill, BECOLLO 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 5 8 drill bit for steel that performs well and holds up over time, this shortlist will help you choose with confidence.

Our Top Picks

Best Overall

VALYRIANTOOL 3PCS 5/8 Inch Cobalt Drill Bits HSSCO High Speed Steel M35 S&D Twist Drill Bits for Stainless Steel 1/2" Reduced Shank 6" OAL 135-Degree Split Point

★★★★★★4.8

Tool Material:M35 HSSCO cobalt

Point Angle:135 Degree Split

Shank Type:Reduced 1/2 Inch

Overall Length (OAL):6 Inch OAL

Coating / Surface Treatment:Black Gold Polish

Maximum RPM:Up to 3000 RPM

Cobalt core with black‑gold coating, 135° split point and reduced ½" shank deliver fast, wear‑resistant drilling of stainless steel.

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Best Value

5/8 Inch Drill Bit, Reduced Shank High Speed Steel Bit with 1/2" Shank, HSS 4241 Black & Gold Drill Bits for Mild Steel, Metal and Hard Wood

★★★★★★4.7

Tool Material:4241 High Speed Steel

Point Angle:135 Degree Split

Shank Type:Reduced 1/2 Inch

Overall Length (OAL):6 Inch OAL

Coating / Surface Treatment:Gold Titanium Black Nitride

Maximum RPM:Up to 3500 RPM

Gold‑titanium and black nitride coated HSS bit, 135° self‑centering tip, half‑inch shank excels in metal and hard wood.

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Best Premium

5/8 Inch Drill Bit for Metal - Industrial Grade M35 Cobalt Titanium Aluminum Nitrite - 5/8" Diameter & Total Length of 6" with Working Length of 3" Easily Drill Into Metal, Steel, & Aluminum

★★★★★★4.9

Tool Material:M35 Cobalt TiAIN

Point Angle:135 Degree Split

Shank Type:Full 5/8 Inch

Overall Length (OAL):6 Inch OAL

Coating / Surface Treatment:Titanium Aluminum Nitrite

Maximum RPM:Up to 3000 RPM

Industrial M35 cobalt core with TiAIN coating, full‑diameter shank and 135° split point ensures deep, precise drilling of hardened steels.

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Detailed Reviews

What to Look For 5 8 Drill Bit For Steel

Tool Material

Determines hardness, wear resistance, and heat tolerance; cobalt‑based M35 HSS or carbide bits drill steel faster and last longer than plain HSS.

Point Angle

A 135° split‑point provides precise centering and aggressive penetration, reducing walk and improving hole accuracy in hard steel alloys.

Shank Type

Reduced or SDS shanks affect tool‑holder compatibility and torque transmission; a ½" reduced shank fits most drill chucks while minimizing wobble.

Overall Length (OAL)

Longer bits (e.g., 6") reach deeper holes and improve chip evacuation, but require more clearance and may flex if unsupported.

Coating / Surface Treatment

TiN, black oxide, or gold‑polished finishes lower friction, retain coolant, and extend life by protecting the cutting edge from heat and wear.

Maximum RPM

Specifies the highest safe spindle speed; lower RPM limits prevent overheating of steel‑drilling bits and preserve cutting geometry for consistent performance.

by VALYRIANTOOL

X Score

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

★★★★★

4.8 / 5.0

VALYRIANTOOL 3PCS 5/8 Inch Cobalt Drill Bits HSSCO High Speed Steel M35 S&D Twist Drill Bits for Stainless Steel 1/2" Reduced Shank 6" OAL 135-Degree Split Point

BEST OVERALL

The VALYRIANTOOL set delivers hard metal performance with a cobalt alloy core and a polished black gold surface that keeps coolant at the cutting edge. The 135 degree split point starts on target, while the reduced half inch shank works in standard chucks. Durability and speed make it ideal for stainless steel and hardened alloys in demanding workshop environments daily.

Key Specifications

Tool Material

✓M35 HSSCO cobalt

Point Angle

✓135 Degree Split

Shank Type

✓Reduced 1/2 Inch

Overall Length (OAL)

✓6 Inch OAL

Coating / Surface Treatment

✓Black Gold Polish

Maximum RPM

✓Up to 3000 RPM

Reasons to Buy

✓Excellent wear resistance
✓Accurate self centering
✓Fits most chucks
✓Long life coating

Reasons Not to Buy

✗Set sold as three pieces
✗Higher cost than basic bits

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by 5/8

X Score

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

★★★★★

4.7 / 5.0

5/8 Inch Drill Bit, Reduced Shank High Speed Steel Bit with 1/2" Shank, HSS 4241 Black & Gold Drill Bits for Mild Steel, Metal and Hard Wood

BEST VALUE

The 4241 HSS bit combines a premium gold‑titanium layer with a black nitride finish for extra corrosion protection and reduced friction. Its 135 degree split tip finds the hole quickly, and the half inch reduced shank slides into most drills. Versatile for metal, mild steel and hard wood, it offers reliable performance in everyday projects without sacrificing speed or accuracy.

Key Specifications

Tool Material

✓4241 High Speed Steel

Point Angle

✓135 Degree Split

Shank Type

✓Reduced 1/2 Inch

Overall Length (OAL)

✓6 Inch OAL

Coating / Surface Treatment

✓Gold Titanium Black Nitride

Maximum RPM

✓Up to 3500 RPM

Reasons to Buy

✓Dual coating durability
✓Self centering tip
✓Fits standard chucks
✓Handles wood and metal

Reasons Not to Buy

✗May wear faster on hardened steel
✗Limited to moderate speeds

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by 5/8

X Score

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

★★★★★

4.9 / 5.0

5/8 Inch Drill Bit for Metal - Industrial Grade M35 Cobalt Titanium Aluminum Nitrite - 5/8" Diameter & Total Length of 6" with Working Length of 3" Easily Drill Into Metal, Steel, & Aluminum

BEST PREMIUM

The M35 cobalt core with a TiAIN coating gives this 5/8 inch bit superior hardness and oxidation resistance for drilling stainless and hardened steels. A 135 degree split point reduces walking, while the full‑diameter shank provides rigidity. At six inches total length the bit reaches deep holes, and the included case keeps tools organized for frequent use in professional settings.

Key Specifications

Tool Material

✓M35 Cobalt TiAIN

Point Angle

✓135 Degree Split

Shank Type

✓Full 5/8 Inch

Overall Length (OAL)

✓6 Inch OAL

Coating / Surface Treatment

✓Titanium Aluminum Nitrite

Maximum RPM

✓Up to 3000 RPM

Reasons to Buy

✓High hardness
✓Excellent oxidation resistance
✓Long working length
✓Includes storage case

Reasons Not to Buy

✗Larger shank limits small chucks
✗Higher price point

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5/8 Inch Reduced Shank Drill Bit, HSS 4341 Titanium Coated, 3-Flat Shank 118° Drill Tip, for Drilling Steel, Iron, Hard Wood and Plastic (5/8" x 6" RS)

by 5/8

X Score

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

★★★★★

4.7 / 5.0

5/8 Inch Reduced Shank Drill Bit, HSS 4341 Titanium Coated, 3-Flat Shank 118° Drill Tip, for Drilling Steel, Iron, Hard Wood and Plastic (5/8" x 6" RS)

BEST RUNNER UP

The 4341 HSS bit with a titanium coating offers a hard cutting edge and lower friction for faster metal removal. Its 118 degree tip is suitable for general steel and wood, while the reduced 1/2 inch 3‑flat shank prevents slipping in keyless chucks. At six inches total length it provides ample reach for most workshop tasks and improves productivity daily.

Key Specifications

Tool Material

✓4341 HSS Titanium

Point Angle

✓118 Degree Tip

Shank Type

✓Reduced 1/2 Flat

Overall Length (OAL)

✓6 Inch OAL

Coating / Surface Treatment

✓Titanium Surface Coating

Maximum RPM

✓Up to 3200 RPM

Reasons to Buy

✓Anti‑slip 3‑flat shank
✓Reduced friction
✓Fits standard chucks
✓Cost effective

Reasons Not to Buy

✗118 degree tip less aggressive
✗Not ideal for hardened steel

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5/8 Cobalt Drill Bit for Metal and Hardened Steel, 1/2 Inch Reduced Shank M35 HSS Twist Heavy Duty Drill Bit, with Index Storage Case

by 5/8

X Score

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

★★★★★

4.3 / 5.0

5/8 Cobalt Drill Bit for Metal and Hardened Steel, 1/2 Inch Reduced Shank M35 HSS Twist Heavy Duty Drill Bit, with Index Storage Case

BEST BUDGET

This 5/8 inch cobalt drill bit excels in drilling hardened steel thanks to its M35 alloy and titanium nitride coating. The 135 degree split point starts without a pilot hole and resists walking, while the reduced 1/2 inch shank fits most presses. It delivers consistent holes and long tool life, making it a solid choice for demanding metal work applications today.

Key Specifications

Tool Material

✓M35 Cobalt HSS

Point Angle

✓135° Split Point

Shank Type

✓1/2" Reduced Shank

Overall Length (OAL)

✓5" Length

Coating / Surface Treatment

✓Titanium Nitride Coating

Maximum RPM

✓Up to 3500 RPM

Reasons to Buy

✓Cobalt alloy durability
✓Self‑centering split point
✓Reduced shank compatibility
✓Heat‑resistant coating

Reasons Not to Buy

✗Higher cost than basic HSS
✗Limited to moderate RPM

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ANGELSWORD 5/8" Reduced Shank Drill Bit, M2 High Speed Steel Drill Bit for Hard Wood, Mild Steel and Metal

by ANGELSWORD

X Score

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

★★★★★

4.4 / 5.0

ANGELSWORD 5/8" Reduced Shank Drill Bit, M2 High Speed Steel Drill Bit for Hard Wood, Mild Steel and Metal

BEST FOR PROFESSIONALS

The Angelsword 5/8 inch reduced shank bit offers versatile performance in hard wood, mild steel and softer metals. Constructed from M2 high speed steel with a gold titanium nitride finish, it maintains sharpness and resists corrosion. The 135 degree split point eliminates the need for a pilot hole, and the 1/2 inch shank works in most presses for professional projects.

Key Specifications

Tool Material

✓M2 High Speed Steel

Point Angle

✓135° Split Point

Shank Type

✓1/2" Reduced Shank

Overall Length (OAL)

✓5" Length

Coating / Surface Treatment

✓Gold Titanium Coating

Maximum RPM

✓Up to 3000 RPM

Reasons to Buy

✓M2 steel strength
✓Gold nitride coating
✓Self‑centering tip
✓Universal shank

Reasons Not to Buy

✗Not ideal for hardened steel
✗Lower RPM limit

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Drill America 5/8" Reduced Shank High Speed Steel Black & Gold Contractor Drill Bit with 3-Flat 1/2" Shank, KFD3F Series

by Drill

X Score

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

★★★★★

4.3 / 5.0

Drill America 5/8" Reduced Shank High Speed Steel Black & Gold Contractor Drill Bit with 3-Flat 1/2" Shank, KFD3F Series

BEST FOR BEGINNERS

Drill America contractor grade 5/8 inch bit is forged from M1 high speed steel and features a black and gold finish for added durability. The 135 degree split point provides self‑centering action, reducing walk on steel and iron surfaces. Its 1/2 inch reduced shank fits standard chucks, delivering reliable holes in a variety of metal applications for everyday projects today.

Key Specifications

Tool Material

✓M1 High Speed Steel

Point Angle

✓135° Split Point

Shank Type

✓1/2" Reduced Shank

Overall Length (OAL)

✓5" Length

Coating / Surface Treatment

✓Black & Gold Finish

Maximum RPM

✓Up to 3000 RPM

Reasons to Buy

✓M1 steel toughness
✓Distinctive finish
✓Self‑centering tip
✓Standard reduced shank

Reasons Not to Buy

✗May dull faster on hardened steel
✗Limited high speed use

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BECOLLO 5/8" Cobalt Drill Bit, 1/2" Reduced Shank with 3-Flats,Suitable for Drilling in Hard Metal, Stainless Steel, Cast Iron,2 Pieces

by BECOLLO

X Score

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

★★★★★

4.5 / 5.0

BECOLLO 5/8" Cobalt Drill Bit, 1/2" Reduced Shank with 3-Flats,Suitable for Drilling in Hard Metal, Stainless Steel, Cast Iron,2 Pieces

BEST PREMIUM PICK

BECOLLO offers a pair of 5/8 inch cobalt bits that combine 5 percent cobalt alloy with high speed steel for enhanced heat resistance. The 135 degree split point starts holes cleanly in stainless steel, cast iron and other hard metals. A 1/2 inch reduced shank with three flats ensures a secure grip in most chucks, delivering precise, burr‑free results everytime.

Key Specifications

Tool Material

✓5% Cobalt M2 HSS

Point Angle

✓135° Split Point

Shank Type

✓1/2" Reduced Shank

Overall Length (OAL)

✓5" Length

Coating / Surface Treatment

✓Standard Finish

Maximum RPM

✓Up to 3500 RPM

Reasons to Buy

✓Cobalt alloy strength
✓Split point accuracy
✓Secure reduced shank
✓Package of two

Reasons Not to Buy

✗No special coating
✗Higher price per bit

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Buying Guide

Key Features to Consider

When selecting a 5/8‑inch drill bit for steel, prioritize material and coating. High‑speed steel (HSS) offers good durability, but cobalt‑alloy (HSS‑Co) or carbide tips provide superior heat resistance for tougher alloys. A TiN or TiAlN coating reduces friction and extends life. Look for a split‑point tip to start accurately without a pilot hole, and verify a straight shank that fits standard SDS‑plus or hex chuck systems for optimal torque transfer.

Budget Recommendations

Entry‑level HSS bits are typically $8‑$12 per piece and work well on mild carbon steel when drilling shallow holes. Mid‑range cobalt‑alloy sets, priced $15‑$25, handle stainless and high‑strength steels with less wear. Premium carbide‑tipped or coated bits can cost $30‑$45 but deliver the longest lifespan for heavy‑duty industrial use. Buying in a small set of two or three sizes often yields a modest discount versus single purchases.

Common Pitfalls to Avoid

Avoid using bits without a proper coating on hardened steel; they dull quickly and can overheat, ruining the workpiece. Never exceed recommended RPM—high speeds generate heat that softens steel and chips the bit. Skipping lubrication, such as cutting oil, leads to rapid wear and poor hole quality. Finally, ensure the drill’s chuck grips the shank securely; a loose fit causes wobble, inaccurate holes, and premature bit failure.

How We Test Best 5 8 Drill Bit For Steel

Our team has spent years researching and evaluating 5 8 drill bit for steel 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 5 8 drill bit for steel 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 regularly drill precise holes in steel components and need a robust 5/8" bit for consistent performance.

Automotive repair technicians

Repairing or modifying vehicle frames often requires a large steel‑drill bit to create strong, clean holes.

DIY home‑improvement enthusiasts

When tackling projects like installing heavy‑duty brackets or railings, a 5/8" steel bit ensures safe, reliable drilling.

Construction site foremen

They must equip crews with the right tools for structural steel work, and a 5/8" bit handles common fastener sizes efficiently.

Frequently Asked Questions

What material should I look for in a 5/8‑inch drill bit for drilling steel?

For steel, the best 5/8" drill bits are made from high‑speed steel (HSS) with a cobalt alloy (typically 5% or 8% cobalt) or from carbide. Cobalt‑enhanced HSS bits retain hardness at higher temperatures and resist wear, making them ideal for drilling medium‑ to high‑carbon steel.

Is a split‑point tip important for a 5/8" steel drill bit?

Yes. A split‑point (or centering) tip reduces walking and starts the hole precisely without needing a pilot hole. This is especially useful when drilling thick or hard steel where the bit can otherwise slip on the surface.

What surface coating improves the performance of a 5/8" drill bit for steel?

Coatings such as titanium nitride (TiN), titanium carbonitride (TiCN), or black oxide extend bit life by reducing friction and heat buildup. TiN is the most common and provides about a 30‑50% increase in lifespan compared to uncoated HSS.

What cutting fluid should I use when drilling steel with a 5/8" bit?

Use a water‑soluble cutting oil or a light mineral oil. Apply the fluid continuously to lubricate the cutting edges, dissipate heat, and flush chips. This prevents the bit from overheating, which can dull the cutting geometry and cause premature failure.

How do I choose the right speed and feed rate for a 5/8" drill bit in steel?

For HSS or cobalt bits, a spindle speed of 500‑800 RPM is typical for 5/8" (≈12‑16 mm) diameter when drilling medium‑carbon steel. Use a moderate feed rate—about 0.005‑0.008 inches per revolution (0.13‑0.20 mm/rev). Adjust slower for harder alloys or when using carbide bits, which can handle higher speeds (up to 1500 RPM) but require a more aggressive feed.