Meets ANSI standards 118 degree split point tip 2 times stronger than other drill bits Bore stainless; chrome; chrome-nickel; silicon-chrome; and even armor and plate Ideal for many uses including auto, home, PBE, hobby, and much more The Mounitain (MTNXBDS13WH) 13 piece high speed steel drill bit set is ideal for many uses and is the perfect companion to most technicians tool boxes.