Drill America 33 Piece m35 Cobalt Reduced Shank Drill Bit Set in Wood Case (1/2″ – 1″ x 64ths), DWDCO Series. Made of heat resistant cobalt and ground to a heavy duty 135° split point. Common flute and overall length for minimal adjustment during tool changes. Precision ground for high degree of concentricity between shank and body diameter. Ideal for drilling in tough, high tensile strength materials. Expands the size range capacity of a portable drill chuck. Ideal for drilling in low and medium tensile strength materials. Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys. Gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools; performance is similar to uncoated tools. Round shanks allow use with a wide variety of toolholding systems. When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging. Manufactured to National Aerospace standard 907. Cutting Angle String: 135 Degrees. 10.55 x 10 x 6.69 inches; 4 Pounds. Best Sellers Rank: #583,364 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #58 in Reduced Shank Drill Bits #12,914 in Drill Bits. #58 in Reduced Shank Drill Bits. #12,914 in Drill Bits. Domestic orders that are identified as going to a. May be subject to cancellation. We do not guarantee and are not responsible for items received in the final destination in damaged condition. Excluded item due to country restrictions, your order will be cancelled. 30 days of receipt. 14 days of receipt. Please note that if an item arrives in. We may, in some cases, be able to offer replacement pieces or a full replacement. Not guaranteed to be compatible or supported in every country. If you are unsatisfied with your order. And we will work with you to resolve it to your satisfaction.