Okay, now I'll write about the 1/16 bit from this set. This set includes 2 1/16 size drill bits. One of them won't drill metal and the other drills metal well but no better. I think this is because small drill bits are not of consistent quality. I also have a set of Black & Decker 15-110 general purpose HSS drill bits, 10pc. Black & Decker drills have a very sharp angle and drill through metal 2x faster than Irwin. Black & Decker Metal certainly isn't as heavy as Irwin, but the price tag is a lot lower.