8 Piece M35 Cobalt Reduced Shank Drill Bit Set in Metal Case (9/16″ – 1″ X 16Ths), DWDCO Series. 6 x 4 x 2 inches; 4 Pounds. 9/16″ – 1″ x 1/2 Shank. 8 Piece Set with 1/2 Reduced Shank Drill Bits. Effective in drilling tough, high tensile strength materials like stainless steel, Inconel, and titanium. Reduced Shank Drills expand the size range capacity of a portable drill chuck. Common flute and overall length for minimal adjustment during tool changes. 135 degree split point tip for self-centering and reducing thrust. Manufactured to Aerospace Standard 907 and display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel. Sizes: 9/16″, 5/8″, 11/16″, 3/4″, 13/16″, 7/8″, 15/16″ and 1″. Drill America m35 Cobalt Drills are effective in drilling tough, high tensile strength materials like stainless steel, Inconel, and titanium. They have a 135 degree split point tip for self-centering and reducing thrust. Compared to a conventional 118 degree tip, these drills wont go “walking” on you. Drill America m35 Cobalt Drills are manufactured to Aerospace Standard 907 and display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel. These reduced Shank Drills expand the size range capacity of a portable drill chuck. Drill Bit Set comes in Metal Case. All drill bits have a 1/2 Reduced Shank. Sizes include 9/16″, 5/8″, 11/16″, 3/4″, 13/16″, 7/8″, 15/16″ and 1″. 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.