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Drill America - D/ASTCO11P12 #11 Cobalt Heavy Duty Split Point Stub Drill Bit (Pack of 12), D/ASTCO Series
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*Packaging of actual item may differ from photo shown
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Drill America - D/ASTCO11P12 #11 Cobalt Heavy Duty Features
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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
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Gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools; performance is similar to uncoated tools
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Round shanks allow use with a wide variety of toolholding systems
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When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging
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Ideal for portable or machine drilling
About Drill America - D/ASTCO11P12 #11 Cobalt Heavy Duty
Drill America D/ASTCO series cobalt steel screw machine length drill bit. Manufactured to National Aerospace Standard 907. 135 degrees split point is self-centering and reduces thrust. Ideal for portable or machine drilling. Short, rugged construction performs well in high tensile strength materials like PH stainless steel, inconel, and titanium.
