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Cutting and Threading > Drill Bits - Individual > Mountain 9/64" Cobalt Drill B

Mountain 9/64" Cobalt Drill Bit

Mountain 9/64\" Cobalt Drill Bit

Features and Benefits:

  • Made from premium grade cobalt steel
  • 135 Split Point, starts cutting at the starting surface
  • For use in extremely hard metals, including stainless steel
  • No center punch needed
  • Aerospace NAS907-J specifications

Cobalt drill bits are designed to cut through extremely hard metals, including stainless steel. The Quick Cut Points are self-centering and penetrate faster with less pressure. It will not "walk" or "wander" at the starting surface. Extremely heat resistant, must be operated in power units that have a RPM speed of 1,500 or higher for maximum efficiency. Made in the USA.


  • Shipping Weight: 0.06lbs
  • Manufactured by: Mountain
  • Toolsource #: 155375
  • Manufacturers Part #: 55609
  • Also Known As: MTN55609

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