Review on 🔧 Enhance Drilling Efficiency with DEWALT DW5209 Premium Percussion Carbide by Luca Washington

After reading online that these masonry drill bits can drill through hardened steel I decided to give it a try as it is quite cheap. It definitely worked! I completely broke 2 5/32 titanium bits trying to drill through steel that was hardened by welding. I didn't even have to sharpen this bit to make it chew that hardened steel like butter. Some oil and after about 30 seconds it had a nice clean hole in it. I will definitely buy more of these if I ever need to drill hardened steel again. Just for reference, I ran this on a 300 rpm drill press.