HSS EXTENSION DRILL BITS – 12 INCH

Overview

High Speed Steel

  • Type B Threaded Hex Shank HSS Adaptor
    Drill – NAS 965 1/4-28 UNF Class 2A Thread
  • Surface Treated-Steam Oxide
  • Drills are manufactured to NAS 965 Type B construction.
  • High Speed Steel drills are for drilling general to medium duty, low tensile strength materials in confined areas.

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