Features Specifications:Sell 3-PC. Titanium-Coated Step Drill set
Sizes: 1) 1/8" to 1/2", 13 sizes; 2) 3/16" to 1/2", 6 sizes; 3) 1/4" to 3/4", 9 sizes. Use on thin metals, (steel, copper, brass, aluminum), wood and plastics. Double-fluted. Includes handsome wood case.