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21/64 x 12 Cobalt Aircraft Extension Drill Bit
Product ID : 12218708
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Galleon Product ID
12218708
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About 21/64 X 12 Cobalt Aircraft Extension Drill Bit
Manufactured to Aerospace Standard 907. Made of heat resistant cobalt. 135 degree split point is self-centering and reduces thrust. Ideal for drilling in tough, high tensile strength materials where extra length for reach is required. Sizes smaller than 1/16" have the standard 118 degree point
