Review on 🔩 Neiko 10230B Silver Deming 8-Piece Drill Bit Set by Jerome Brooks

I bought these to drill a 1" diameter hole in 1/4" thick steel pipe. The 1 inch drill fell through the hole. I was positively surprised. However, when I went to drill the second hole, the drill basically failed. All other exercises failed as well. This is very bad. However, the case is excellent and every bit is well packaged. I will keep them for future drilling in thinner metal. Maybe there is a way to sharpen the bits.