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#21 (.159) EXTENSION DRILL BIT, COBALT 6" LONG

$5.95/Each
Part# 12-04332
MFR Model# 4040-1590
SizeCobalt #PN
#214040-159012-04332

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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Reviews

Bits as described. Fast and reasonable shipping. If you havent switched to using cobalt bits yet, they are noticeably more durable and stay sharp longer.

Stephen B
April 30, 2020

Robb
August 28, 2017

George T
September 19, 2017

Q&A

Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

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