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Cobalt Extension Drill Bits - 6 Inch

From $4.85 to $43.90
Size Cobalt # PN Price Buy
1/164040-0625
12-04293
$8.50
Quantity
#514040-0670
12-04295
$7.50
Quantity
#504040-0700
12-04296
$8.85
Quantity
#494040-0730
12-04297
$5.75
Quantity
#464040-0810
12-04302
$7.75
Quantity
#454040-0820
12-04303
$14.50
Quantity
#444040-0860
12-04304
$8.99
Quantity
#434040-0890
12-04305
$6.50
Quantity
#424040-0935
12-04306
$4.85
Quantity
3/324040-0938
12-04307
$5.25
Quantity
#414040-0960
12-04308
$5.45
Quantity
#404040-0980
12-04309
$5.40
Quantity
#384040-1015
12-04311
$7.50
Quantity
#374040-1040
12-04312
$11.50
Quantity
7/644040-1094
12-04314
$6.50
Quantity
#354040-1100
12-04315
$5.70
Quantity
#344040-1110
12-04316
$5.70
Quantity
#334040-1130
12-04317
$7.95
Quantity
#324040-1160
12-04318
$5.70
Quantity
#314040-1200
12-04319
$6.50
Quantity
1/84040-1250
12-04320
$6.50
Quantity
#304040-1285
12-04321
$5.75
Quantity
#294040-1360
12-04322
$6.50
Quantity
#284040-1405
12-04323
$6.50
Quantity
9/644040-1406
12-04324
$6.90
Quantity
#274040-1440
12-04325
$6.50
Quantity
#264040-1470
12-04326
$6.50
Quantity
#254040-1495
12-04327
$7.50
Quantity
#244040-1520
12-04328
$8.99
Quantity
#234040-1540
12-04329
$7.50
Quantity
5/324040-1562
12-04330
$7.25
Quantity
#214040-1590
12-04332
$6.70
Quantity
#204040-1610
12-04333
$6.50
Quantity
#194040-1660
12-04334
$7.50
Quantity
#184040-1695
12-04335
$7.50
Quantity
11/644040-1719
12-04336
$6.90
Quantity
#174040-1730
12-04337
$7.50
Quantity
#164040-1770
12-04338
$7.50
Quantity
#154040-1800
12-04339
$7.95
Quantity
#134040-1850
12-04341
$7.95
Quantity
3/164040-1875
12-04342
$6.50
Quantity
#124040-1890
12-04343
$7.50
Quantity
#114040-1910
12-04344
$6.90
Quantity
#104040-1935
12-04345
$8.50
Quantity
#94040-1960
12-04346
$7.95
Quantity
#74040-2010
12-04348
$8.50
Quantity
13/644040-2031
12-04349
$8.50
Quantity
#34040-2130
12-04353
$8.99
Quantity
7/324040-2188
12-04354
$8.50
Quantity
#24040-2210
12-04355
$11.50
Quantity
#14040-2280
12-04356
$9.50
Quantity
15/644040-2344
12-04357
$10.50
Quantity
D4040-2460
12-04358
$11.50
Quantity
1/44040-2500
12-04359
$9.50
Quantity
F4040-2570
12-04360
$13.50
Quantity
G4040-2610
12-04361
$21.70
Quantity
17/644040-2656
12-04362
$19.60
Quantity
9/324040-2812
12-04363
$18.90
Quantity
19/644040-2969
12-04364
$22.50
Quantity
11/324040-3438
12-04367
$26.50
Quantity
23/644040-3594
12-04368
$29.50
Quantity
25/644040-3906
12-04370
$33.50
Quantity
27/644040-4219
12-04372
$33.50
Quantity
31/644040-4844
12-04376
$42.85
Quantity
1/24040-5000
12-04377
$43.90
Quantity
Subtotal $0.00
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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
   
California Prop 65 Warning Symbol

WARNING: The product may contain and/or expose you to a chemical(s) or substance(s) which are known to the State of California to cause cancer and/or birth defects or other reproductive harm. www.P65Warnings.ca.gov

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Reviews

Jaakko M Verified Purchase

1/8 (.125) EXTENSION DRILL BIT, COBALT 6" LONG

October 18, 2022

Jaakko M Verified Purchase

1/8 (.125) EXTENSION DRILL BIT, COBALT 6" LONG

October 18, 2022

Works great!!

Doug Verified Purchase

#40 (.098) EXTENSION DRILL BIT, COBALT 6" LONG

October 16, 2022

Lorne G Verified Purchase

#40 (.098) EXTENSION DRILL BIT, COBALT 6" LONG

February 1, 2022

Lorne G Verified Purchase

#30 (.1285) EXTENSION DRILL BIT, COBALT 6" LONG

February 1, 2022

Jennifer L Verified Purchase

#30 (.1285) EXTENSION DRILL BIT, COBALT 6" LONG

November 23, 2021

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

product works as advertised

Harold P Verified Purchase

#31 (.1200) EXTENSION DRILL BIT, COBALT 6" LONG

July 13, 2021

product works as advertised

Harold P Verified Purchase

#38 (.1015) EXTENSION DRILL BIT, COBALT 6" LONG

July 13, 2021

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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