Review on 🔧 Irwin Tools Cobalt Metal 3018002 by Brett Kolpack

The worst quality drill bits I have ever owned and made for 40 years. I had to cut a 1/4" hole in a hardened caliper on a drill press and the 1/16 bit wouldn't even scratch it, then change the speed slow to fast. Nothing. I used Brownell's DO-DRILL oil. I picked up a set of cheap QVC drill bits to see if I could screw up something cheap. just creaked and rounded the drill. Luckily I have ACE devices nearby. I went and bought a cobalt drill for $6.96. I have ever bought. They cut wood and aluminum excellently, but lose their sharpness and have trouble cutting mild steel. Garbage. Sorry Irwin but you turned a 20 minute project into a ruined day. We should be ashamed of this marketing crap. Now I just have to figure out how to get them back.