These drill bits drill holes and cut metal pretty quickly. Weaknesses: I could do with sharper drill bits than these at hand.  For the best metal drill bits, I would recommend countersink drill bits for anybody who works with wood frequently. The stubby drill bits are always useful to have on hand for making shallow holes and getting into tight spaces. Related Posts. You can decide which Drill Bit For Metal you should buy and which one is good for you, After reading this exclusive review.  DEWALT DW 7-Piece Premium Percussion Masonry Drill Bit Set Irwin Tools Cobalt M Metal Index Drill Bit Set Craftsman Piece drilling and driving kit Drill America. Clearly the best drill bits for hardened metal or steel come with a cobalt blend. These cobalt drill bits use an alloy including 5%–8% cobalt. This cobalt makes up part of the steel blend, so the hardness of the bit doesn’t wear off with a coating (like titanium bits).  When drilling a hole with a cobalt bit, add a drop of oil on the metal to keep the cutting edge cooler as it cuts. You also want to consider placing some wood underneath the steel if possible. This lets you cut cleanly through the material and not strike a surface below which might dull the cutting edge. Flat Surface. Feel free to put it in the comments below or on FacebookInstagramand Twitter! Tool steels can go 65 Rockwell. It beats black oxide in cuyting it increases surface hardness and does a better job reducing heat while drilling through metal. Several step bits make for viable solutions for electricians and others looking to drill through sheet metal and thicker materials.

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Face Milling. T- Slot. Flat Surface. Convex Radius. Concave Radius. Double Chamfer. Carbon Fiber. Hardened Steel. Stainless Steel. Tool Steel. High- Speed Steel. Cobalt Steel. With that said, stainless can actually harden up as it heats—so drilling slowly often helps you get through the material more efficiently.

Use cutting oil or similar lubricant when drilling into stainless and apply enough pressure to see a steady removal of material.

Even the best drill bits for stainless steel heat up over time, so be prepared to monitor heat buildup. Listed in our best drill bits article, Milwaukee Red Helix cobalt bits use a variable flute design that clears away debris quickly.

How quickly? Their unique Slot Cutting Drill Bit For Metal Case design not only helps them drill efficiently, but it also aids in cooling. The trade-off is that these bits thin out more towards the tip. However, they also extended the flutes lower towards the shaft.

The result is a more compact bit with a similar drilling depth. We love how quickly these bits drill and also how well they remove steel in tight, efficient spirals.

The combination of the unique cutting head and the flute design landed these as our best drill bits for steel—particularly carbon steel. Thanks to the cobalt steel blend, plan on sharpening these when the tips grow dull from use. The value of this kit makes these the best drill bits for steel. We love the build quality on the DeWalt 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. Sometimes you need to drill through steel…but that steel is buried in concrete. We like the design better than Bosch Rebar Cutters because you use the same bit to drill the hole and penetrate the rebar. With Bosch, you drill using rotary hammer mode, switch to the Rebar Cutter in rotary-only mode, and then return to your original bit to finish the hole.

These bits drill quickly through concrete then continue right through rebar. As we mentioned above, Bosch Rebar Cutter bits present a viable option, but they slow you down when working. These bits should last a good while since they only cut the metal of rebar, but we prefer a single cutting solution overall.

Shop Bosch Rebar Cutters here. It can tackle stainless steel and certainly anything softer or milder than that. 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. The cobalt blend gives these bits a much longer life. Since step bits are both expensive and extremely difficult to sharpen, we like them to last as long as possible. Irwin gives these bits a Speedpoint tip.

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. Several step bits make for viable solutions for electricians and others looking to drill through sheet metal and thicker materials. While we favor the Irwin Cobalt models above, the dual-fluted Milwaukee Step Bits come in handy configurations to tackle common job site needs.

Diablo step bits promise twice the cutting speed and up to 6X longer Slot Cutting Drill Bit For Metal Joint life. They attribute this, in part, to a precision CNC grinding process. 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.

For metal drilling, we definitely put these as the bare minimum. With titanium nitride, you have to remember it only coats the bit. As the coating wears off the cutting edges, you pretty much have to replace them. That also means you Slot Cutting Drill Bit For Metal 10 can sharpen them before having to replace them. This helps save money when you buy these more expensive bit sets.

Cobalt bits are our go-to for drilling through metal—particularly hardened steels and stainless steel. We probably missed something along the way—we get it. At some point we have to draw the line and finish the article. With that said—let us know what you think the best drill bits for metal are.

We know personal preferences take a front seat in determining the best drill bit, and every Pro is different. Do Pro Tool Nation a favor and tell us what your top pick is and why you love it. Feel free to put it in the comments below or on Facebook , Instagram , and Twitter!

Our Pro reviewers work in the trades and have the skills and experience to know whether tools can perform well in the field. Each year, we bring in and review more than individual products. 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. The end result is information you can trust because of the editorial, scientific, and real-world professional experience we collectively utilize each and every time we pick up and test a tool.

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