Long-length offers more reach and depth than a jobber-length drill bit * 130-degree point angle for centering and to reduce pressure on cutting edges * Cobalt steel is a combination of toughness and hardness, for use on drilling into hard substances * Uncoated (bright) finish with aluminum chromium nitride (AlCrN), to reduce friction, for efficient chip removal, and to help extend tool life * Round shanks, for use with a variety of tool holders