33 Piece M35 Cobalt Reduced Shank Drill Bit Set (1/2″ – 1″ X 64Ths), DWDCO Series. 33 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 include: 1/2″, 33/64″, 17/32″, 35/64″, 9/16″, 37/64″, 19/32″, 39/64″, 5/8″, 41/64″, 21/32″, 43/64″, 11/16″, 45/64″, 23/32″, 47/64″, 3/4″, 49/64″, 25/32″, 51/64″, 13/16″, 53/64″, 27/32″, 55/64″, 7/8″, 57/64″, 29/32″, 59/64″, 15/16″, 61/64″, 31/32″, 63/64″ 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. 1/2″ – 1″ x 1/2 Shank. 14.37 x 7.87 x 6.22 inches; 4 Pounds. We reserve the right to cancel any order for any reason at any time. We are not responsible for undeliverable addresses. Your feedback very important to us, after you get your package and you are. Satisfied with our service. If you have any problem with your order / any questions please before leave any type of feedback. Thank you for shopping at our store.