Drill America DWDCO15/16 15/16" Reduced Shank Cobalt Drill Bit, 1/2" Shank, Qualtech, DWDCO15/16 Shop By Vehicle>Mazda Drill America D/AN35/64 35/64" HSS

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Drill America DWDCO15/16 15/16" Reduced Shank Cobalt Drill Bit, 1/2" Shank, Qualtech, DWDCO15/16 Shop By Vehicle>Mazda Drill America D/AN35/64 35/64" HSSDrill America DWDCO15 16 15 16" Reduced Shank Cobalt Drill Bit, 1 2" Shank, Qualtech, DWDCO15 16 Cobalt reduced shank drills are heavy Duty 135 Split Point, Cobalt Steel, Jobber Length, manufactured to National Aerospace standard 907. These drill bits display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel, and are especially effective in drilling tough, high tensile strength materials like stainless