COBALT 1/4-28 MALE THREADED DRILL BITS – 1/2 INCH

Overview

Cobalt

  • Type D Threaded Square Shank Cobalt Adaptor
    Drill NAS 965 1/4-28 UNF Class 2A Thread
  • Surface Treated-Steam Oxide
  • Drills are manufactured to NAS 965 Type D construction.
  • Cobalt drills are for drilling hard, tough, high tensile strength materials in confined areas

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