Because of rust and stain resistance, good luster, and low maintenance, it has many commercial uses including cookware, cutlery, home appliances, construction fasteners, and surgical instruments. The bits feature the expected 135° split point, which gives you a nice, steady, and productive drilling speed.
The round case makes it simple to remove the exact bit you need. Pick up the Jobber Length Drill America D/A29J-CO-PC kit for just $106.
They did very well in steel and kept a sharp edge after drilling many holes. Irwin actually sells an M35 cobalt set if you don’t plan to drill hardened steel.
Overall, this kit gives you the best drill bits for metal applications of all kinds. They make these bits with M42 cobalt steel, so they drill really well without heating up quickly.
They also seem to hold an edge and stay sharp even after dozens of drilled holes. The round case makes it simple to remove the exact bit you need.
Use cutting oil or similar lubricant when drilling into stainless and apply enough pressure to see a steady removal of material. Listed in our best drill bits article, Milwaukee Red Helix cobalt bits use a variable flute design that clears away debris quickly.
We love how quickly these bits drill and also how well they remove steel in tight, efficient spirals. Thanks to the cobalt steel blend, plan on sharpening these when the tips grow dull from use.
Dealt Industrial Cobalt Pilot Point Drill Bits We love the build quality on the Dealt cobalt pilot point drill bit set. It has a tapered core that gradually adds stiffness to the bit as it gets closer to the base.
The Milwaukee Hole Dozen with Carbide Teeth really wins for metal drilling. These are the best hole saws for metal drilling that electricians, HVAC, and/or MRO Pros can use.
Because they work effectively in both metal and wood, any Pro looking for a general-purpose set of hole saws should quickly fall in love with their productivity. It vastly outperforms bi-metal blades and tackles those materials carbide wood hole saws can’t (or shouldn’t) touch.
Our team grabs Irwin Unibit Cobalt Step Bits for any quick thin metal drilling applications. Since step bits are both expensive and extremely difficult to sharpen, we like them to last as long as possible.
It helps get the hole started quickly and reduces wandering. We also have to admit these became our best step bits for metal in part because Irwin laser-etched the measurements right on the inside of the flute.
While we favor the Irwin Cobalt models above, the dual-fluted Milwaukee Step Bits come in handy configurations to tackle common job site needs. Drill bits made with a Titanium nitride coating resists corrosion and friction.
It beats black oxide in that it increases surface hardness and does a better job reducing heat while drilling through metal. Since the cobalt is blended into the steel, it doesn’t wear away like a titanium or black oxide coating.
This helps save money when you buy these more expensive bit sets. We know personal preferences take a front seat in determining the bestdrillbit, and every Pro is different.
Ever check out a “review” site, and you can’t tell if they actually tested the tools or if they’re just “recommending” the Amazon top sellers? It’s all about giving you a legitimate recommendation and our honest opinion of each product.
Our Pro reviewers work in the trades and have the skills and experience to know whether tools can perform well in the field. Our team will put our hands on hundreds of additional tools at media events and trade shows throughout the year.
We consult with innovators in the technology and design of tools to gain a broader grasp of where these products fit and how they work. We work with more than two dozen professional contractors around the United States who review products for us on real job sites and consult with us on testing methods, categories, and weighting.
Different bits are meant for different jobs, so it’s a good idea to take this into consideration before starting to work. Today we’ll be focusing on the best drill bits for hardened steel available in 2021.
We will take all these factor into consideration to ensure that you can finish projects involving hardened steel efficiently. DEMO M35 Cobalt Spiral Flute Step Drill, 12 Size From...
CO-Z 5pcs HSS Cobalt Multiple Hole 50 Sizes Step Drill ... To top it all off, they come with a two-year warranty, so in case your bits get broken, you can contact customer support to have them replaced or exchanged for something similar.
These bits are heat-resistant, made with M35 cobalt steel, and they come in a package of 50 pieces. Pros Having 50 bits of different sizes means you won’t run out anytime soon, and you can use them for a multitude of projects.
The Halo masonry drill bit set isn’t specifically designed for hardened steel. Pros It’s not designed for a single task, which brings a certain level of versatility to the drill bit.
This places it among the best drill bits for hardened steel meant for a project of larger overall scope. The fact that it’s not specifically designed for hardened steel might mean that it will probably not last as long as other choices.
Verdict Coming in a hard casing that keeps everything tidy, this drill bit set features a carbide steel build that’s fairly resistant even during prolonged use. The anti-rust chrome plating further extends the bits’ lifespan, while also reducing friction.
But it’s still among the best drill bits for hardened steel in case you need an extra level of versatility. The carbide construction offers an acceptable level of strength for most projects.
Pros It comes at a fairly good price and offers a high level of versatility. The overall build quality is also far higher than one might expect for a lower cost drill bit.
Verdict Dealt is one of the top drilling brands, and this set doesn’t disappoint. While the bits may not be specifically targeted at hardened steel, they manage to do a phenomenal job.
This instantly pushes it higher for those looking to find the best drill bits for hardened steel. The set comes at a decent price and the hex shank provides extra stability when you insert it in the drill’s chuck.
Pros The lower price makes it easier to purchase in bulk. Although these aren’t really options for long term use, they are fine for a quick purchase for finishing projects rapidly.
The titanium coating does give a lot of extra power, but it still might not be enough for a larger project with hardened steel. One shouldn’t be too surprised to find that it doesn’t last much longer than the masonry focused options.
And the drill tips completely eliminate walking on hardened steel surfaces. The cobalt and titanium structure ensures that it’s able to handle hardened steel quite easily.
However, this places it among the best drill bits for hardened steel if you seek quality over quantity. The Seiko 1093A titanium step features some impressive construction standards.
The design even allows for less particulate debris during high speed drilling than one might expect. The flatted shank fits into any power tool’s chuck securely and eliminates slipping.
The bits have 6, 13, and 9 steps respectively, that cover a great number of sizes, so you can drill numerous types of holes with relative ease. The DEMO M35 uses a special heat-resistant design to achieve superior performance.
Better performance with heat means that it can run faster and longer on even very hard surfaces such as hardened steel. Instead of using a thin coating it features percentages which actually impact strength and durability.
While it’s priced higher than others on this list, it’s still fairly reasonable for what you receive in this package. Verdict The price might be high for a single bit, but it makes up for this with top-notch overall quality.
You can achieve a lot with a good drill bit as long as you’ve got one of the best cordless drills on the market today! The 135 degree split point needs less force to achieve high quality results.
And even so, the price is still decent compared to our previous item which only featured a single bit. Some surfaces might be too thick for it to penetrate seamlessly, which makes the bit prone to heat.
Hold the sharp edge of the bit at 60-degree angles and let the metal grinder do the sharpening. When thinking about overall quality and specifically about the right bits for hardened steel, the IRWIN cobalt drill bit earned top ranking.
By sharing your opinion, people can more easily judge how the drill bits fit when it comes down to their own unique style.