+5% Cobalt, Sets includes: 1/16″-1/2″ by 1/64. Straigth shank, Right hand, ANSI standard. 135° split point for fast penetration and accurate starting with no punch. Lasts 12x longer than standard 118° point drill bits. In strong Rose-plastic box. It’s ideal for drilling cast iron, heat-treated steel, stainless steel, and other hard materials. Premium Quality, Brand New Lasts 12x longer than standard 118° point drill bits Solid M35 = H. S + 5% Cobalt Sets include: 1/16″-1/2″ by 1/64 1/16-inch Drill 5/64-inch Drill 3/32-inch Drill 7/64-inch Drill 1/8-inch Drill 9/64-inch Drill 5/32-inch Drill 11/64-inch Drill 3/16-inch Drill 13/64-inch Drill 7/32-inch Drill 15/64-inch Drill 1/4-inch Drill 17/64-inch Drill 9/32-inch Drill 19/64-inch Drill 5/16-inch Drill 21/64-inch Drill 11/32-inch Drill 23/64-inch Drill 3/8-inch Drill 25/64-inch Drill 13/32-inch Drill 27/64-inch Drill 7/16-inch Drill 29/64-inch Drill 15/32-inch Drill 31/64-inch Drill 1/2-inch Drill.