Best Drill Bit For Hardened Steel 2022: Top 10 Picks

Sometimes it might be quite difficult to find the best drill bit for hardened steel. With every niche market offering so many different products, it makes sense that this is the case.

Unfortunately, this very fact can make it incredibly difficult to find the item that best suits your needs, which is why we’ve put together this drill bit for hardened steel buying guide.

Our 10 Favorites:

10 Best Drill Bit For Hardened Steel Reviews:

Bestseller No. 1
Cobalt Drill Bits for Metal and Steel - 13 Piece Set in SAE Sizes (1/16" - 1/4") M35 Fully Grounded 5% Cobalt - Plastic Storage Case Included
  • SET OF 13 COBALT DRILL BITS - In the following imperial sizes 1/4", 15/64", 7/32", 13/64", 3/16", 11/64", 5/32", 9/64", 1/8", 7/64", 3/32", 5/64", 1/16"
  • M35, Fully Ground, 135° Split Point - Our Drill Bits Contain 5% Cobalt, Are Fully Grounded for a Precision Drilling Diameter. 135° Split Point Design Makes it Easier to Drill Repeated Holes in Harder Materials.
  • PLASTIC STORAGE CASE INCLUDED - Incredibly Tough and Durable Plastic Case. Perfect for Keeping Your Cobalt Drill Bits Neatly Organized and Safe.
  • COBALT DRILL BITS ARE THE PERFECT DRILL BITS FOR METAL - As well as other hard materials such as Stainless Steel, Hardened Steel, Cast Iron, Bronze, Titanium, and More!
  • LIFETIME GUARANTEE - Here at Owl Tools (USA Based Company) we only care about your satisfaction. We try our best to ensure each product is in perfect condition before you get it, but if something is not up to your satisfaction, please contact us for a full refund or replacement.
SaleBestseller No. 2
BOSCH CO14B 14 Pc. Cobalt M42 Drill Bit Set
  • Cobalt M42 drill bit – provides upgraded M42 Cobalt jobber-length bits designed for durability, high heat resistance and Hardened surface for stainless steel, cast iron, titanium, light-gauge metal and aluminum
  • Enhanced M42 alloy material – contains 8% Cobalt alloy that delivers 10x life vs. Standard bits
  • High-heat resistant bits – withstand high-temperature applications for extended periods of time
  • Thick web-helix design – provides additional stability in tough applications
  • Surface-hardened tip – penetrates tough abrasive materials
Bestseller No. 3
2/Pack Solid Carbide Drill Bit for Hardened Steel Hard Ness HRa 91.3 Aerospace Standard K20 Tungsten Carbide Jobber Length Twist Drill for Metal 118 Degree Four Facet Point Fractional Size (3/32")
  • ★【Premium Bright Finish 2/Pack】 multi-purpose solid carbide drill bits provide better rigidity than high speed steel bits. It is extremely heat resistant and used for high speed applications. Our tungsten carbide (WC) bits has the advantage of cutting metal either "wet" or "dry" and they provide solutions for many businesses such as aerospace drilling jobs for aircraft mechanics, precision machining, hobby supply, etc.
  • ★【Recommended For Use On】 aircraft metals chrome titanium inconel stainless steel Alloys Steel Low-Medium-High Carbon Steel Aluminum Copper Glass Plastics Composite Materials Cast Iron -- Our Carbide drills stay sharp many times longer than traditional steel bits making them ideal for the toughest of applications!
  • ★【Optimal Design for Metal Work】 118° four facet point angle minimizes drill wander and assures accurately sized holes. Our jobber length, precision ground carbide drills are designed for high feed rates with good chip disposal. smooth finish on the bits increases chip flow. Spiral flutes are constructed with a higher flute angle to remove chips more easily.
  • ★【Specs】 Tungsten Carbide Grade (ISO): K20 / Binder: %8 Cobalt / Hardness: 91.3 HRa / Uncoated / Flute Length: 1 inch, Overall Length: 2 inch, Drill Size: 3/32 inch
  • ★【IMPORTANT, PLEASE READ BEFORE BUYING】 tungsten carbide or cemented carbide is a composite material, although it looks like a metal, it is a composite of Tungsten carbide powder mixed with cobalt as a binder metal and the resulting material is more like a ceramic than a metal. It is a very hard material being a 9 on the Mohs scale where diamond is a 10, quartz a 7 and hard steel around 4.5. Due to its hardness, it will chew down into most anything But that hardness makes them brittle on side lo
SaleBestseller No. 4
DEWALT Titanium Nitride Coated Drill Bit Set, Pilot Point, 21-Piece (DW1361)
  • DEWALT drill bit set has connectable accessory storage system to optimize storage space
  • Patented bit-bar design of the drill bits set allows easy removal of bits and customizable placement
  • Clear lid of the Titanium Nitride Coated drill bit set allows you to easily see contents at glance
  • Clip latch for secure closing
  • Small Bulk Storage size fits inside the Small and Medium ToughCase plus (sold separately) - Ideal for organizing loose bits
Bestseller No. 5
NordWolf 5-Piece M35 Cobalt Stubby Drill Bit Set for Stainless Steel, Hard Metals & Cast Iron, Multi Points Drill Tip with 1/4" Hex Shank for Quick Chucks and Drives, Sizes 3/32"-1/8"-3/16"-1/4"-5/16"
  • 【High Quality Steel】M35 Cobalt steel precision ground drill bits for extra durability and long lifetime
  • 【Efficient Design】135 Degree split polint two-blades special design drill tip (1/8-inch and larger) for perfect self-centring and fast drilling. Stubby drill bits measures from 1.84 to 2.32-inch only, allow to access to hard-to-reach and tight spaces
  • 【Multi-Purpose Use】Suitable for stainless steel, cast iron, Titanium, bronze, Aluminium and other hardened metals
  • 【Integrated Hex Shank】One piece 1/4-inch hex shank compatible with standard and quick change chucks and drivers
  • 【Popular Sizes】Includes common imperial sizes in 3/32", 1/8", 3/16", 1/4" and 5/16". Packed in storage rail lasered with sizes for easy identification
Bestseller No. 6
GMTOOLS 13Pcs Cobalt Drill Bits Set, M35 High Speed Steel, 135 Degree Tip, Twist Jobber Length Drill Bit Kit for Hardened Metal, Cast Iron, Stainless Steel, Plastic and Wood with Storage Case 1/16"-1/4"
  • Perfect Drill Bits: Precision grinding process for a clean surface and high grinding accuracy. Universal round drill shank, widely applicable of tool holding systems and tightly clamped
  • 135° Split Point & Twist Design: The 135 degree fast cutting point is automatically centered and penetrates quickly with less pressure, reducing walking, fully ground drill bit with sharp and durable cutting edge. Twist design for clear chips faster
  • Enhanced M35 Alloy Material: These drill bits contain 5% Cobalt, which increases wear resistance and durability. Industry grade 6542 high speed steel drill bit set, harder than 4241 HSS used in other similar drill bits set.
  • Set includes: 1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 11/64, 3/16, 13/64, 7/32, 15/64 and 1/4 inch bits; Comes in plastic storage case for easy storage
  • QUALITY COMMITMENT: If for any reason you are not satisfied with your purchase, please contact us. We provide 30-day money back. 100% Satisfaction Guarantee for risk-free shopping!
SaleBestseller No. 7
NordWolf 7-Piece M35 Cobalt Jobber Drill Bit Set for Stainless Steel & Hard Metals, Multi Points Drill Tip with 1/4" Hex Shank for Quick Chucks and Drives, SAE Sizes 1/8"(x3)-3/16"(x2)-1/4"(x2)
  • 【High Quality Steel】M35 Cobalt steel precision ground jobber length drill bits for extra durability and long lifetime
  • 【Efficient Design】135 Degree split point two-blades special design drill tip (7/64-inch and larger) for perfect self-centering and fast drilling
  • 【Multi-Purpose Use】Suitable for stainless steel, cast iron, titanium, bronze, aluminium and other hardened metals
  • 【Integrated Hex Shank】1/4-inch hex shank compatible with standard and quick change chucks and drivers, 7/32, 15/64, 1/4-inch come with one piece 1/4-inch hex shank
  • 【Popular Sizes】Includes common imperial sizes in 1/8"(x3), 3/16"(x2), 1/4"(x2). Packed in storage rail lasered with sizes for easy identification
Bestseller No. 8
BOSCH CO2135 1/8 In. x 2-3/4 In. Cobalt Drill Bit
  • Withstands high-temperature applications for extended periods of time (up to 1,100 degreeF)
  • Rigid, thick web design adds stability to bit in tough applications
  • Surface hardened to penetrate tough abrasive materials
  • Available in jobber length, full shank
  • Best used for drilling into light-gauge metal, high-carbon steel, aluminum and ally steel, cast iron, stainless steel and titanium
Bestseller No. 9
COMOWARE Cobalt Drill Bit Set- 15Pcs M35 High Speed Steel Twist Jobber Length for Hardened Metal, Stainless Steel, Cast Iron and Wood Plastic with Indexed Storage Case, 1/16"-3/8"
  • HIGH QUALITY MATERIAL: 5% Cobalt High Speed Steel M35 provide extended tool life compared to ordinary drill bits. Durable and strong
  • TWIST DESIGN & PERFORMANCE: PRECISE 135°SPLIT POINT, gold oxide finish and round straight shanks. Prevent walking, clear chips and particles faster.Produced by precision fully ground which ensures chips move smoothly.
  • PROFESSIONAL & WIDELY USE: M35 Cobalt HSS is more suitable for hardened material. Particularly successful in cutting through hard metals such as stainless steel, cast iron, high temperature alloy, titanium alloy, hard plastics and woods, and also can be used for softer materials.
  • SIZE INCLUDED: 15pcs jobber length drill bit set with plastic storage case including sizes:1/16" 2pc,5/64" 1pc ,3/32" 2pc,7/64" 1pc,1/8" 2pc ,9/64" 1pc, 5/32" 1pc, 3/16" 1pc, 7/32" 1pc, 1/4" 1pc, 5/16" 1pc, 3/8" 1pc.
  • 100% SATISFACTION GUARANTEE: If you are not 100% satisfied with your purchase for any reason whatsoever simply please feel free to contact us.
SaleBestseller No. 10
DEWALT Cobalt Alloy Steel Drill Bit Set with Pilot Point, 14-Piece (DWA1240)
  • Connectable accessory storage system to optimize storage space of drill bits for wood, metal or i-beams
  • Patented bit-bar design allows easy removal of drill bits and customizable placement
  • DEWALT drill bit set comes with clear lid allowing you to easily see contents at glance
  • Clip latch for secure closing
  • Small Bulk Storage size fits inside the Small and Medium ToughCase+ (sold separately) - Ideal for organizing loose bits

Last update on 2022-12-04 / Affiliate links / Images from Amazon Product Advertising API

How to find the best drill bit for hardened steel?

Here, we’ll be going over a number of factors that you can use to ensure that you’re purchasing the best drill bit for hardened steel for you.

Regardless of which type of item you’re looking to buy, chances are that there are existing buying guides on the internet, all of which aim to give you good drill bit for hardened steel recommendations.

Despite these recommendations, however, it’s always a good idea to do your own research. In addition to this research, asking yourself the following questions is also super helpful:

  • What features does the drill bit for hardened steel need to have to be perfect for my needs?
  • What is my budget?
  • Do I need to purchase a certain brand?

Once you’ve answered these questions and have a good idea of what you’re looking for and the buying process becomes much easier. Keep in mind that when looking for the best product, there’s no need to rush. In fact, very rarely are the ideal products found by choosing the first one you see or by basing your decisions on only one factor. Take your time and enjoy the process!

Now, with the answers to the previous questions in mind, we urge you to use our upcoming buying guide for drill bit for hardened steel to find what you’re looking for:

Brand

In some cases, the brand of drill bit for hardened steel is very important. For example, if you’re looking for an item that works in tandem with another, you might very well need both products to be the same brand. If this is the case, it’s vital to pay attention to this factor, as choosing the wrong product can mean the difference between wasting your money and buying a great product that functions as it should.

Features

The features in any given drill bit for hardened steel are important because they can dictate which version of an item you need and how much money you need to spend. Consider all the key features that you want your item to have and don’t settle for anything that doesn’t check at least ¾ of your boxes.

Reviews

Customer reviews about drill bit for hardened steel are crucial – especially when you’re buying a product that costs a lot of money or serves a big importance. Luckily, most products can be found online, which means that it’s common for there to be scores of customer reviews from those who have already purchased any given product.

Pay attention to these reviews. Take note of the pros and cons that they mention, and factor these into your big decision. In some cases, you’ll be forced to sacrifice one con in order to gain a particular pro, but being aware of the potential con is going to be beneficial in either case.

Quality

Of course, quality is key. You don’t want to purchase a low-quality product. If you do, you run the risk of your item breaking, not working properly, or otherwise proving to be very disappointing, as well as a waste of money.

You can compare drill bit for hardened steel quality by researching what your potential purchases are made from, contrasting the individual items against each other to discern which one is made of the best materials.

Warranty

Warranty isn’t always going to be important, but it definitely can be. This is especially true if the item in question is tech-related or expensive. A good warranty will be valid for an extended time after purchase and cover a variety of problems ranging from item defects to random accidents, water damage, and other miscellaneous events that could ruin your product.

Conclusion

The quest to find the best drill bit for hardened steel can be daunting – but it doesn’t have to be. It can be made much easier by asking yourself a few simple questions and then thinking critically about the items you want to buy. Consider their features, quality, brand, warranty, and customer reviews and you’re more likely to make a great purchase.