Having the best drill bit is crucial for your projects.  whether as a DIY hobbyist who uses a beginner corded drill on a more casual level, or a professional contractor who relies on cordless power drills for your line of work. This list of Best Drill Bits For Hardened Steel will help ease the job for you.

What is a Drill Bit?

Drill bits are designed in a variety of shapes and sizes and are made in various materials and coatings tailored to suit specific projects, like high-speed steel (HSS) which is a more economical option made for boring into soft steels, wood, and plastic.

How To Use Drill Bits

You can use drill bits to create holes in various materials such as metal, plastic, or wood. They come in various shapes and sizes, depending on the type of project and the material being drilled. It is among the list of best mechanic tools out there.

How To Use A Bit

To use a bit, insert the bit shank, the end that’s opposite of the cutting end, into your chuck-which is the cylinder-like clamp.

Turn the clamp to tighten the bit into the chuck, and ensure the bit is tight and secure before drilling.

All bits are built to spin clockwise to drill, and counter-clockwise to reverse, thus ensure your drill is going in the right direction. Allow the tool to do most of the work while you continue to apply steady pressure that is directly parallel to the bit. The bit is to stay straight as it spins and not wobble.

Let’s take a look at some of these drill bits that can give you good output fit for your money.

Best Drill Bits For Hardened Steel

Irwin Tools 3018002 Cobalt Metal Drill Bit Set

Irwin Tool 3018002 Cobalt Metal Drill Bit Set is constructed from 8% Cobalt alloy and industrial-grade high-speed steel. It is a 29-piece bit set that is made to resist heat and extend the life of cutting edges. It also consists of a 135-degree split point that starts drilling upon contact with less force and more durability, and the convenient click and selection chart which makes it easy to choose the right bit for your project.

Reasons to love this set

  • An over-molded rubber case that safeguards against damage.
  • Compatible with harder materials
  • 1/64-inch increments
  • Durable cobalt high-speed steel.

Material – Cobalt, Steel

Drill Type – Twist

Number Of Pieces – 29

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Tooluxe 10055L Titanium Coated Hex Shank Drill Bits

This is a 30-piece set that includes ¼-Inch hex shank that looks into both hex sleeves for quick and easy changing. These drill bits are roller-forged from quality high-speed steel that can be used in high-powered stationary presses, and the roller-forged and sharpened edges deliver fast, clean penetration which is best for automotive, industrial, and construction.

Reasons to love this set

  • It is Titanium coated
  • Easy locking and quick release
  • Quick-changing
  • Affordable price

Material – Steel, Titanium

Drill Type – Hex Shank

Number Of Pieces – 30

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IRWIN Tools SPEEDBOR Max Wood Drilling Bits

The IRWIN Tools SPEEDBOR Max Wood Drilling Bits is specifically made for wood. It is a six-piece tri-flute wood bit set with it’s patented Blue-Groove design which sports a thicker cutting edge and a 25 percent larger shank for more improved cutting and durability, with a full screw-point tip for holding securely to the wood upon penetration. Irwin stands as a trusted name for superior performance and is a leader in bit technology.

Reasons to love this set

  • 1/4″ quick-change shank
  • Has cutting spurs for fast, clean holes
  • Self-feeding tip
  • Tri-flute design.

Material – Metal

Drill Type –Tri-Flute

Number Of Pieces – 10

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DEWALT DW1177 20-Piece Black-Oxide Metal Drill Bit Set

The Dewalt bits have a black oxide finish that provides better longevity and greater protection from wear. With sizes ranging from 1/16-inch up to 1/2-inch, they have a fluted design that is parabolic for greater strength as well as a 135-degree split-point design that offers a more accurate, no-slip start. Its rugged case container has a sliding soft-grip lock that secures and prevents lost bits. This set is best for metal, wood, and plastic drilling.

Reasons to love this set

  • Easy to use
  • Designed with a durable oxide finish
  • Hasa soft-grip lock for security.
  • Slip and walking reduction.

Material –Black Oxide

Drill Type – Twist

Number Of Pieces – 20

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Drill America DWD29J-CO-PC Cobalt Steel Drill Bit Set

Drill American DWD29J-CO-PC was able to make our list of Best Drill Bits For Hardened Steel.

The Drill America set, features a 29-piece, 1/64-inch incremental bits that are constructed to perform in a wide range of materials specified in the iron and steel families. The gold oxide finish is beneficial in reducing friction and creating coolant pockets near the cutting edge which makes this ideal for drilling in tough, hard metal materials for maintenance, construction, or portable work.

Reasons to love this set

  • Wear-resistance
  • ANSI specifications
  • Self-centering, clean holes
  • Durable cobalt steel.

Material –Cobalt, Steel

Drill Type – Twist

Number Of Pieces – 29

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Irwin Industrial Tools 63221 Metal Drill Bit Set

These are versatile and durable tools to use on a wide variety of materials, with a heavy-duty spiral fluted design for faster chip ejection and a 135-degree split point tip for easy penetration.

Reasons to love this set

  • Spiral flute design
  • Durable cobalt steel
  • Faster chip ejection
  • Torque reduction in cutting lips.

Material –Cobalt, Steel

Drill Type – Twist

Number Of Pieces – 21.

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Snappy Quick-Change 5-Pc. Countersink Drill Bit Set

This is a do-it-all tool that drills countersink, and counterbore a perfect sized hole for several screw sizes in just one step. These sets produce clean, sharp countersinks and also creates counterbore holes which are ideal for plugs or dowel buttons. The 1/4-inch hex shank is compatible with power drills and quick shucks.

Reasons to love this set

  • 1/4-Inch hex shank
  • Drill, counterbore, and countersink
  • Best for plugs and dowels
  • Awesome reviews.

Material – Steel

Drill Type –Countersink

Number Of Pieces –5

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DEWALT DW1361 Titanium Pilot Point Drill Bit Set

This set is best for wood or plastic and coated with titanium to offer a longer drill life in non-ferrous (non-iron) materials, which makes them a great choice for commercial or residential applications. This set also includes sizes that range from 1/6 inch to 1/2 inch packaged in a sturdy plastic case.]

Reasons to love this set

  • Made of Titanium coating for longer life
  • Starts on contact – cleaner
  • Tapered for greater durability
  • Wide size variety.

Material –Steel, Titanium

Drill Type – Twist

Number Of Pieces – 21

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Drill Hog 2.29 Pc Cobalt Drill Bit Set M42 HSS 29pc USA Drills

These bits are made from cobalt M42 steel and have a whooping melting point of 2853 degrees Fahrenheit. This implies that these bits are durable enough to drive through the toughest steel, like truck frames, stainless steel, farming equipment, etc.

Reasons to love this set

  • No-spin shank
  • 1/64 inch increments
  • Solid Cobalt M42 – high-heat durability.

Material – Cobalt

Drill Type – Twist

Number Of Pieces – 29

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Tooluxe 10171L 13-Piece Titanium Drill Bit Set

Designed out of High-Speed Steel (HSS) with a titanium coating, these drills deliver tough durability as well as a longer service life that endures through multiple uses. It’s 135-degree split point tip and twist design is designed to be long-lasting and provides a cleaner hole than the more common 118 degrees bit. Even with its high quality, it is still affordably priced.

Reason to love this set

  • Titanium/High-speed steel
  • Organized holder
  • Faster cutting speed
  • 1/4 inch hex shank.

Material – Steel, Titanium

Drill Type – Hex Shank

Number Of Pieces – 13

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DEWALT DW1354 Brad-Point Drill Bits

Dewalt once again delivers high quality to these bits which are coated with titanium to offer more durability and a longer life span when driving into non-ferrous metals. They are designed with a tapered Web to minimize breaking and are best for boring in wood or plastic for both residential and commercial applications. On this product, Dewalt offers a 30-day money-back guarantee.

Reasons to love this set

  • There’s a 30-day money-back guarantee
  • Titanium Pilot Point
  • No spin shanks
  • Starts on contact.
  • Made in the USA

Material –Steel, Titanium

Drill Type – Twist

Number Of Pieces – 14

Table Of Content

  • What is a Drill Bit?
  • How To Use Drill Bits
  • How To Use A Bit
  • Best Drill Bits For Hardened Steel

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