We also frequently pop them into impact drivers to quickly get through various materials. We use these when drilling through combinations of wood, metal, tile, composites, and-of course-concrete. The carbide tips on the Daredevil Multi-Purpose Drill Bits are tough enough to cut through almost any material. Just like SDS-plus and SDS-max bits, these use tungsten carbide cutting tips. For that, our Pros consistently turn to Bosch Daredevil Multi-Purpose Drill Bits. When you start looking for the best concrete drill bits and the best masonry drill bits, the need for handling multiple materials arises. Hammer drills, however, more than suffice for drilling smaller diameter holes. SDS-Plus and SDS-Max rotary hammers do best for drilling on concrete and masonry materials. You can find the 15-piece kit for $34.97 or the 29-piece kit for $149.99. When you’re looking for the best cobalt drill bits for the money, the 15-piece kit presents a compelling option. Avoid using them when you don’t need them to prolong their life for when you do. When the tips on these bits dull, consider sharpening them since cobalt runs throughout the steel. Also the Best Cobalt Drill Bits (for the money) If you want to drill in hardened steel, you might want to check out the Drill America D/A29J-CO-PC 29-pc Cobalt Set. Their primary goal in life is to drill well in thicker, harder metals. They don’t have a 1/4″ hex, however, so you won’t use these in your impact driver. This new core design strengthens it with better flute durability. Milwaukee updated these bits with Enhanced Tapered Web. ![]() They also have a 135° QuadEdge Tip that helps it drill much faster than other cobalt bits we tested and still keep the walking to a minimum. Just like their titanium bits, they have the Red Helix variable flute design. Some screwdriving kits are not rated for impacts but look similar at a slightly lower cost.The best drill bits for metal, and particularly for carbon steels, goes to Milwaukee for their excellent cobalt bits. When shopping around, be sure to find an impact ready set if you have an impact driver. The Flex Torq bits are advertised to be able to twist 15degrees to minimize the chance of breakage. After 5 months of use, no broken bits – my only complaint is that some of the bit holders are a tad stiff (making it moderately difficult to insert and remove bits). Hopefully the “Flex Torq” will allow enough twist that I won’t burn through these bits any time soon. ![]() Note that most of the bits are duplicates, and you aren’t getting 30 unique bits. The magnetic screw lock is very useful, and I’m happy with this set. I’ve attached a video showing how the magnetic screw lock holder works, and going over the items included with this set. There are many similar kits (24pc, 34pc, 35pc, etc.) – at the time I ordered, this offered the best value. This one (DEWALT DWA2FTS30IRC) seemed to offer the best value, and the magnetic screw lock holder looked like it could be useful. ![]() I bought an impact driver and needed a set of basic impact-ready bits to go with it.
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