Heavy Duty Cobalt Drill Bits

Our Cobalt High Speed drill bits are made of high speed Cobalt Steel. The Cobalt content adds high abrasion resistance to the already hard working properties if our bits. Heavy web construction and 135 degree Split-Point add to the long life of these bits. Available in sizes 1/32″ – 1/2″.

SKU: COB031-COB500 Categories: , Tag:
  • Description
  • Selection Chart


  • High Speed Steel
  • Ground Flute
  • Heavy Duty Cobalt
  • 135 degree Split Point
  • Made in the USA
  • NAS 907 Type B