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HSS 1/4-28 MALE THREADED DRILL BITS - 1 INCH

From $2.75 to $9.99
Size HSS # PN Price Buy
#50211-0700
12-03939
$9.95
Quantity
3/32211-0938
12-03941
$5.40
Quantity
#40211-0980
12-03942
$2.75
Quantity
#37211-1040
12-03945
$9.95
Quantity
#36211-1065
12-03946
$9.95
Quantity
7/64211-1094
12-03947
$9.95
Quantity
#35211-1100
12-03948
$9.99
Quantity
#31211-1200
12-03953
$9.99
Quantity
1/8211-1250
12-03954
$3.95
Quantity
Subtotal $0.00
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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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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.

Q: What is the # or part number for a 1/4 drill bit. Thats a 1/4 in width, not length. An inch length would be sufficient.

12-04228 is just a standard 1/4 diameter 4" long cobalt drill.

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