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> New #40 6" extension length cobalt drill bit - usa -
New #40 6" extension length cobalt drill bit - usa -
National Aerospace Standard 907, Type J Cobalt 6" Extension Length Bit
Made to NAS 907 Type J specifications, these cobalt 6" extension length drills are used for drilling in tough, high tensile
strength materials like stainless steels, titanium and inconel. They are made of 8% cobalt high speed steel, with heavy
duty flute construction and 135 split point.
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