12 Inch Cobalt Bits

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  • COBALT DRILL BITS, 12"
    BAC #: DRILL-BIT-12

    Cobalt Drill Bits, 12"

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    12" High Speed Steel Aircraft Extension Drills feature a 135 degree split point, manufactured to NAS Standard 907. Sizes: 1/4, 10, 19, 21, 30, 40. Cobalt drill bits maintain hardness at elevated temperatures Reduce edge breakdown and extend tool...
    $7.20 - $9.29
    $7.20 - $9.29
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    $7.20 - $9.29
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Foot-Long Cobalt Drill Bits for Hard to Reach Areas

These 12" long drill bits are for use with standard electric drills for hard-to-reach jobs.  Twelve-inch cobalt drill bits are designed for aircraft maintenance applications that require maximum reach into deep assemblies, wing structures, fuselage sections and other confined areas where standard-length drill bits cannot access. Their extended length allows aircraft technicians to drill precise holes while minimizing the need to disassemble surrounding components, helping improve efficiency during inspections, repairs and modifications. Built to withstand the demands of drilling aluminum, stainless steel, titanium and other aerospace alloys, 12-inch cobalt drill bits are an essential tool for airframe maintenance, structural repair and aircraft manufacturing.