14 Piece, Pilot Point, Industrial Grade, Cobalt, Drill Bit Set, Designed For Maximum Speed & Life, Pilot Point & Split Tip Design, No Bit Walking, More User Control, For Drilling In Stainless Steel, Abrasive Metal & Other Hard To Drill Alloys, Set Contains: (2) 1/16", (1) 5/64", (1) 3/32", (1) 7/64", (2) 1/8", (1) 9/64", (1) 5/32", (1) 3/16", (1) 7/32", (1) 1/4", (1) 5/16", (1) 3/8" Bits.