While we’re not huge fans of general-purpose bits typically, especially when it comes to drilling metal, these Bosch bits were excellent. The set includes 21 bits ranging in size from 1/16 inch to ½ inch and is packaged in a plastic storage case. The Bosch bits’ tapered tips can quickly penetrate the metal, balance the bit, and produce a clean, even hole. Manufactured from high-speed steel and coated in black oxide, Bosch drill bits can withstand friction and heat so you can drill continuously without the bits heating up. Those looking for an all-around capable set of drill bits may want to check out the Bosch black oxide metal drill bit set. The following recommendations are all at the top of their class for metal drilling, and one (or more) may be an asset to your tool collection. Bits also need to be durable and able to withstand the friction and heat produced when drilling through metal. To qualify as one of the best drill bits for metal, the bit needed to perform well in the metal that it’s designed to drill. We tested these Top Picks products to ensure that they had what it takes for drilling metal. The bits that passed these tests were given awards based on their strengths. Afterward, we did our best to hand sharpen each of the larger bits with a file. We did our best to maintain similar speeds and pressure throughout each portion of every test. Then we moved to some heavier-duty 7-gauge flat stock, again testing how each bit made it through the test. We wanted to see how well they’d retain their edge, how hot they’d get, and how long it would take them to bore a hole in the metal. There’s only one good way to test drill bits for metal: We needed to put some holes in some metal! We grabbed some scraps of metal off our welding cart, chucked some bits into our drill, and started drilling.įirst, we drilled into some relatively light-duty 11-gauge steel angle iron, testing a few bits from each pack. Photo: How We Tested the Best Drill Bits for Metal
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