75-Piece Kobalt PTA Set with Bag * S2 material bits are strong and durable for long performance life * Magnetic nutsetters and drive guides work like a magnet for easy use * Convenient contractor bag includes 75-piece set for most drilling and driving needs * Drill bit sizes: 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 3/16", 1/4"", 5/16", 3/8", 7/32"