This are easy to useThis is highly durableThis is manufactured in China
7/16", turbo max jobber length drill bit, self-centering, precision ground turbo max feature 135 degree point tip eliminates walking on flat & curved surfaces, stays sharp longer, 3 Flatted shank on 3/16" for exceptional grip on chuck, manufactured with premium high speed steel with BLACK & Gold oxide coating for maximum corrosion Existence.
Brand: Irwin Tools, Model: 73328