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Cobalt Extension Drill Bits - 12 Inch

From $4.55 to $58.99
Size Cobalt # PN Price Buy
#524070-0635
12-04464
$20.90
Quantity
#494070-0730
12-04467
$21.70
Quantity
#484070-0760
12-04468
$14.65
Quantity
5/644070-0781
12-04469
$18.55
Quantity
#474070-0785
12-04470
$21.70
Quantity
#464070-0810
12-04471
$11.65
Quantity
#454070-0820
12-04472
$21.70
Quantity
#444070-0860
12-04473
$21.70
Quantity
#434070-0890
12-04474
$21.70
Quantity
3/324070-0938
12-04476
$15.65
Quantity
#404070-0980
12-04478
$12.50
Quantity
#394070-0995
12-04479
$16.50
Quantity
#384070-1015
12-04480
$16.50
Quantity
#374070-1040
12-04481
$16.50
Quantity
#364070-1065
12-04482
$16.50
Quantity
7/644070-1094
12-04483
$13.50
Quantity
#354070-1100
12-04484
$18.55
Quantity
#344070-1110
12-04485
$18.55
Quantity
#334070-1130
12-04486
$18.55
Quantity
#324070-1160
12-04487
$18.55
Quantity
#314070-1200
12-04488
$16.50
Quantity
1/84070-1250
12-04489
$12.50
Quantity
#304070-1285
12-04490
$12.70
Quantity
#294070-1360
12-04491
$15.50
Quantity
#284070-1405
12-04492
$17.50
Quantity
#264070-1470
12-04495
$16.50
Quantity
#254070-1495
12-04496
$16.50
Quantity
#244070-1520
12-04497
$19.60
Quantity
#234070-1540
12-04498
$16.50
Quantity
5/324070-1562
12-04499
$4.55
Quantity
#214070-1590
12-04501
$12.50
Quantity
#204070-1610
12-04502
$14.80
Quantity
#184070-1695
12-04504
$17.75
Quantity
#174070-1730
12-04506
$17.80
Quantity
#164070-1770
12-04507
$17.80
Quantity
#154070-1800
12-04508
$20.90
Quantity
#144070-1820
12-04509
$16.85
Quantity
#134070-1850
12-04510
$15.50
Quantity
3/164070-1875
12-04511
$11.85
Quantity
#104070-1935
12-04514
$13.50
Quantity
#94070-1960
12-04515
$17.75
Quantity
#84070-1990
12-04516
$19.60
Quantity
#74070-2010
12-04517
$19.60
Quantity
13/644070-2031
12-04518
$19.60
Quantity
#64070-2040
12-04519
$22.80
Quantity
#54070-2055
12-04520
$14.50
Quantity
#44070-2090
12-04521
$22.80
Quantity
#34070-2130
12-04522
$22.80
Quantity
#24070-2210
12-04524
$19.60
Quantity
#14070-2280
12-04525
$20.90
Quantity
15/644070-2344
12-04526
$18.80
Quantity
D4070-2460
12-04527
$36.50
Quantity
G4070-2610
12-04530
$34.85
Quantity
17/644070-2656
12-04531
$29.55
Quantity
9/324070-2812
12-04532
$25.95
Quantity
11/324070-3438
12-04536
$35.50
Quantity
25/644070-4219
12-04539
$28.85
Quantity
13/324070-4062
12-04540
$43.50
Quantity
7/164070-4375
12-04542
$36.60
Quantity
29/644070-4531
12-04543
$53.80
Quantity
31/644070-4844
12-04545
$58.99
Quantity
1/24070-5000
12-04546
$57.95
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: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.

Reviews

135* Split Point Cobalt bits are all I use so I was happy to find ACS finally carries them. High quality bits that cut clean, fast, and stay sharp longer than HSS.

Custom F Verified Purchase

#30 (.1285) EXTENSION DRILL BIT, COBALT 12" LONG

April 19, 2023

135* Split Point Cobalt bits are all I use so I was happy to find ACS finally carries them. High quality bits that cut clean, fast, and stay sharp longer than HSS.

Custom F Verified Purchase

3/32 (.0938) EXTENSION DRILL BIT, COBALT 12" LONG

April 19, 2023

Great! Worth the extra money for sure. This is a must have for any sheet metal project with hard to get to areas

Genavco A Verified Purchase

#30 (.1285) EXTENSION DRILL BIT, COBALT 12" LONG

April 19, 2023

Great service

Chris R Verified Purchase

#30 (.1285) EXTENSION DRILL BIT, COBALT 12" LONG

February 1, 2023

works great!

Doug Verified Purchase

#40 (.098) EXTENSION DRILL BIT, COBALT 12" LONG

October 16, 2022

Paul G Verified Purchase

#40 (.098) EXTENSION DRILL BIT, COBALT 12" LONG

December 19, 2021

Paul G Verified Purchase

#30 (.1285) EXTENSION DRILL BIT, COBALT 12" LONG

December 19, 2021

James M
June 18, 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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