Irwin Industrial Tools Straight Shank Drill Bit Set, Length, 316015, Cobalt, 15pc

["Cobalt steel extends cutting edge life and maintains cutting life after resharpening","Extra hard drill for greater wear","135-Degree split point tip starts on contact, cuts with less force","Reduced shank above 3/8-Inch allows the use of larger drill bits in a 3/8-Inch chuck","Similar cobalt sets available for almost every drilling application"]