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AT Aircraft Extension / Extra Length

Alfa Tools produces aircraft extension drills—also known as extra-length or long-series drills—crafted from high-speed steel (HSS) and designed with extended flutes and overall lengths for deep hole drilling in tight spaces, thick materials, and hard-to-access areas. Our comprehensive range includes Type B and Type J geometries in both 6-inch and 12-inch lengths, available in sizes from 3/64" to 1/2" diameter. These specialty drill bits are ideal for aerospace, automotive, industrial manufacturing, maintenance, and repair applications.

Alfa Tools AECO60660 #30 SWG 6 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

Alfa Tools AECO60660 #30 SWG 6 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

SKU: AT-AECO60660
MPN: AECO60660

Save $5.83
Alfa Tools AECO60661 #31 SWG 6 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

Alfa Tools AECO60661 #31 SWG 6 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

SKU: AT-AECO60661
MPN: AECO60661

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Alfa Tools AECO60662 #32 SWG 6 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

Alfa Tools AECO60662 #32 SWG 6 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

SKU: AT-AECO60662
MPN: AECO60662

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Alfa Tools AECO60663 #33 SWG 6 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

Alfa Tools AECO60663 #33 SWG 6 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

SKU: AT-AECO60663
MPN: AECO60663

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Alfa Tools AECO60664 #34 SWG 6 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

Alfa Tools AECO60664 #34 SWG 6 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

SKU: AT-AECO60664
MPN: AECO60664

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Alfa Tools AECO60665 #35 SWG 6 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

Alfa Tools AECO60665 #35 SWG 6 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

SKU: AT-AECO60665
MPN: AECO60665

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Alfa Tools AECO60666 #36 SWG 6 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

Alfa Tools AECO60666 #36 SWG 6 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

SKU: AT-AECO60666
MPN: AECO60666

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Alfa Tools AECO60667 #37 SWG 6 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

Alfa Tools AECO60667 #37 SWG 6 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

SKU: AT-AECO60667
MPN: AECO60667

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Alfa Tools AECO60668 #38 SWG 6 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

Alfa Tools AECO60668 #38 SWG 6 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

SKU: AT-AECO60668
MPN: AECO60668

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Alfa Tools AECO60669 #39 SWG 6 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

Alfa Tools AECO60669 #39 SWG 6 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

SKU: AT-AECO60669
MPN: AECO60669

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Alfa Tools AECO60670 #40 SWG 6 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

Alfa Tools AECO60670 #40 SWG 6 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

SKU: AT-AECO60670
MPN: AECO60670

Save $5.09
Alfa Tools AECO60701 1/16 X 12 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

Alfa Tools AECO60701 1/16 X 12 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

SKU: AT-AECO60701
MPN: AECO60701

Save $14.30
Alfa Tools AECO60702 5/64 X 12 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

Alfa Tools AECO60702 5/64 X 12 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

SKU: AT-AECO60702
MPN: AECO60702

Save $14.30
Alfa Tools AECO60703 3/32 X 12 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

Alfa Tools AECO60703 3/32 X 12 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

SKU: AT-AECO60703
MPN: AECO60703

Save $13.39
Alfa Tools AECO60704 7/64 X 12 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

Alfa Tools AECO60704 7/64 X 12 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

SKU: AT-AECO60704
MPN: AECO60704

Save $13.91
Alfa Tools AECO60705 1/8 X 12 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

Alfa Tools AECO60705 1/8 X 12 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

SKU: AT-AECO60705
MPN: AECO60705

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Alfa Tools AECO60706 9/64 X 12 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

Alfa Tools AECO60706 9/64 X 12 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

SKU: AT-AECO60706
MPN: AECO60706

Save $15.98
Alfa Tools AECO60707 5/32 X 12 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

Alfa Tools AECO60707 5/32 X 12 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

SKU: AT-AECO60707
MPN: AECO60707

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Alfa Tools AECO60708 11/64 X 12 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

Alfa Tools AECO60708 11/64 X 12 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

SKU: AT-AECO60708
MPN: AECO60708

Save $17.29
Alfa Tools AECO60709 3/16 X 12 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

Alfa Tools AECO60709 3/16 X 12 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

SKU: AT-AECO60709
MPN: AECO60709

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Alfa Tools AECO60710 13/64 X 12 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

Alfa Tools AECO60710 13/64 X 12 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

SKU: AT-AECO60710
MPN: AECO60710

Save $21.54
Alfa Tools AECO60711 7/32 X 12 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

Alfa Tools AECO60711 7/32 X 12 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

SKU: AT-AECO60711
MPN: AECO60711

Save $21.54
Alfa Tools AECO60712 15/64 X 12 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

Alfa Tools AECO60712 15/64 X 12 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

SKU: AT-AECO60712
MPN: AECO60712

Save $22.94
Alfa Tools AECO60713 1/4 X 12 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

Alfa Tools AECO60713 1/4 X 12 COBALT AIRCRAFT EXTENSION DRILL - Std Qty Pack 6

SKU: AT-AECO60713
MPN: AECO60713

Save $22.94