I got into metalworking and metal fabrication as a hobby about 15 years ago and have always had trouble making accurate holes in steel over 1/4 inch thick to get. I've mostly used large box bits and they dull quickly on heavier gauge steel. Eventually I decided to try a range of elite drills and the Viking/Norseman brand was recommended to me. They are amazing! They cut faster and stay sharper than any other brand I've used before. They really make my job easier and I can't imagine buying any other brand from now on. You are worth your money.