Review on 🔩 Irwin Industrial TV197916 Silver Deming Drill Bit: High Performance and Versatility by Tyler Markham

I needed a 9/16 drill bit to drill a hole in a metal door for a peep hole. This Deming style silver bit features a beveled shank to prevent slipping in the drill chuck. I can't test the hardness of the metal. But for the price it seemed better than others. I have other Irwin tools and they seem to be of better quality overall so I'll take a look to compare.