Drill America POUDWDCO 5 Piece M35 Cobalt Drill Bit Set in Plastic Pouch Case (9/16" - 1"), POU 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. 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 low and medium tensile strength materials.

• Sizes included are 9/16", 5/8", 3/4", 7/8" and 1" with 1/2" reduced shanks
• 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
• 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