Cobalt Drill Bits


You don't have to drill down too deeply into our virtual store to find exactly what you need. From leading manufacturer American Tool Supply, we carry a big selection of numbered, fractional and lettered cobalt jobbers' length drill bits. They're made with 135 degree split-point angles that prevent walking, making your work easier and more efficient. You can use these rugged drill bits to drill stainless steel, Inconel, titanium and aircraft grade aluminum. These cobalt drill bits are designed to comply with NAS907 Type J standards, and you'll find all the juicy details below, such as the part number, diameter, flute length and overall length.

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