Cobalt Aircraft Type D Drills
- Cobalt Drill Bits - Made of cobalt high speed steel and designed for handling the higher thrust loads required when drilling tough high tensile and heat resistant alloy steels. Jobber length with short flute, heavy web and 135° P9 split point, gives the tool more rigidity, eliminating vibration and flexing, resulting in a more accurate hole and longer tool life, making it an ideal tool for portable drilling applications. High polished steam oxide flutes improve the evacuation of chips and prevent abrasion at cutting edge.
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