Drill Bit Set, M35 Cobalt Alloy Steel Steel, 29-Piece (3018002). 12 x 7.5 x 4 inches. Cobalt Alloy Steel Drill Bit Set. Sizes 1/16 inch -1/2 inch in 1/64 inch increments, 135 Degree Split Point To Minimize Walk. 5% Cobalt Alloy Steel For Higher Heat & Abrasion Resistance. Heavy Duty Web Construction For Strength & Durability. We offer the best prices around on high quality products. Our E-store includes media such as books, movies, music and games while offering electronics, toys, sporting apparel, clothing, tools, general home, garden items and more. We are always working hard to ensure your package arrives as soon as possible. We do not accept P. Please provide a physical address. We try our very best to make sure every customer is completely satisfied. If there’s a problem, message us! We’re happy to help.