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Cobalt Extended-Length Drill Bits

Cobalt extended-length drill bits tolerate higher drilling speeds and are harder and more wear-resistant than high-speed steel extended-length drill bits. They provide some shock absorption and can be used in handheld power tools. These extended-length drill bits have longer flutes and more overall length than standard jobber-length drill bits of the same size, and they have longer shanks than taper-length drill bits. Their extra length allows them to create deep holes or drill into hard-to-reach workpieces.

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DRILL BIT, AIRCRAFT EXTENSION, #44, 1 1/8 IN FLUTE L, 6 IN OVERALL L, 0.086 IN DIA, COBALT STEEL

CLARKSON-OSBORN
DRILL BIT, AIRCRAFT EXTENSION, #44, 1 1/8 IN FLUTE L, 6 IN OVERALL L, 0.086 IN DIA, COBALT STEEL
Item # CSBDR64744
Mfr. Model # DR64744

EHC: EHC :

This number 44, cobalt steel, aircraft extension drill bit has a flute length of 1 1/8 inches, an overall length of six inches, and a diameter of 0.086 inches.

This number 44, cobalt steel, aircraft extension drill bit has a flute length of 1 1/8 inches, an overall length of six inches, and a diameter of 0.086 inches.

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Web Price : $12.83 / EACH

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DRILL BIT, AIRCRAFT EXTENSION, #27, 1 7/8 IN FLUTE L, 6 IN OVERALL L, 0.144 IN DIA, COBALT STEEL

CLARKSON-OSBORN
DRILL BIT, AIRCRAFT EXTENSION, #27, 1 7/8 IN FLUTE L, 6 IN OVERALL L, 0.144 IN DIA, COBALT STEEL
Item # CSBDR64727
Mfr. Model # DR64727

EHC: EHC :

This number 27 aircraft extension drill bit has a flute length of 1 7/8 inches, an overall length of six inches, and a diameter of 0.144 inches. This drill bit is made of cobalt steel.

This number 27 aircraft extension drill bit has a flute length of 1 7/8 inches, an overall length of six inches, and a diameter of 0.144 inches. This drill bit is made of cobalt steel.

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DRILL BIT, AIRCRAFT EXTENSION, 3 5/8 IN FLUTE L, 6 IN OVERALL L, 0.368 IN DIA, COBALT STEEL

CLARKSON-OSBORN
DRILL BIT, AIRCRAFT EXTENSION, 3 5/8 IN FLUTE L, 6 IN OVERALL L, 0.368 IN DIA, COBALT STEEL
Item # CSBDR64621
Mfr. Model # DR64621

EHC: EHC :

This cobalt steel aircraft extension drill bit has a flute length of 3 5/8 inches, an overall length of six inches, and a diameter of 0.368 inches.

This cobalt steel aircraft extension drill bit has a flute length of 3 5/8 inches, an overall length of six inches, and a diameter of 0.368 inches.

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Web Price : $93.14 / EACH

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DRILL BIT, AIRCRAFT EXTENSION, #52, 7/8 IN FLUTE L, 6 IN OVERALL L, 0.0635 IN DIA, COBALT STEEL

CLARKSON-OSBORN
DRILL BIT, AIRCRAFT EXTENSION, #52, 7/8 IN FLUTE L, 6 IN OVERALL L, 0.0635 IN DIA, COBALT STEEL
Item # CSBDR64752
Mfr. Model # DR64752

EHC: EHC :

This number 52 aircraft extension drill bit has a flute length of 7/8 inches and an overall length of six inches. It is made of cobalt steel and has a diameter of 0.0635 inches.

This number 52 aircraft extension drill bit has a flute length of 7/8 inches and an overall length of six inches. It is made of cobalt steel and has a diameter of 0.0635 inches.

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DRILL BIT, AIRCRAFT EXTENSION, #57, 3/4 IN FLUTE L, 6 IN OVERALL L, 0.043 IN DIA, COBALT STEEL

CLARKSON-OSBORN
DRILL BIT, AIRCRAFT EXTENSION, #57, 3/4 IN FLUTE L, 6 IN OVERALL L, 0.043 IN DIA, COBALT STEEL
Item # CSBDR64757
Mfr. Model # DR64757

EHC: EHC :

This number 57 aircraft extension drill bit has a flute length of 3/4 inches and an overall length of six inches. It is made of cobalt steel and has a diameter of 0.043 inches.

This number 57 aircraft extension drill bit has a flute length of 3/4 inches and an overall length of six inches. It is made of cobalt steel and has a diameter of 0.043 inches.

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DRILL BIT, AIRCRAFT EXTENSION, #28, 1 3/4 IN FLUTE L, 6 IN OVERALL L, 0.1405 IN DIA, COBALT STEEL

CLARKSON-OSBORN
DRILL BIT, AIRCRAFT EXTENSION, #28, 1 3/4 IN FLUTE L, 6 IN OVERALL L, 0.1405 IN DIA, COBALT STEEL
Item # CSBDR64728
Mfr. Model # DR64728

EHC: EHC :

This number 28 aircraft extension drill bit has a flute length of 1 3/4 inches, an overall length of six inches, and a diameter of 0.1405 inches. This drill bit is made of cobalt steel.

This number 28 aircraft extension drill bit has a flute length of 1 3/4 inches, an overall length of six inches, and a diameter of 0.1405 inches. This drill bit is made of cobalt steel.

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DRILL BIT, AIRCRAFT EXTENSION, #29, 1 3/4 IN FLUTE L, 6 IN OVERALL L, 0.136 IN DIA, COBALT STEEL

CLARKSON-OSBORN
DRILL BIT, AIRCRAFT EXTENSION, #29, 1 3/4 IN FLUTE L, 6 IN OVERALL L, 0.136 IN DIA, COBALT STEEL
Item # CSBDR64729
Mfr. Model # DR64729

EHC: EHC :

This number 29 aircraft extension drill bit has a flute length of 1 3/4 inches, an overall length of six inches, and a diameter of 0.136 inches. This drill bit is made of cobalt steel.

This number 29 aircraft extension drill bit has a flute length of 1 3/4 inches, an overall length of six inches, and a diameter of 0.136 inches. This drill bit is made of cobalt steel.

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DRILL BIT, AIRCRAFT EXTENSION, 3 3/4 IN FLUTE L, 6 IN OVERALL L, 0.397 IN DIA, COBALT STEEL

CLARKSON-OSBORN
DRILL BIT, AIRCRAFT EXTENSION, 3 3/4 IN FLUTE L, 6 IN OVERALL L, 0.397 IN DIA, COBALT STEEL
Item # CSBDR64624
Mfr. Model # DR64624

EHC: EHC :

This cobalt steel aircraft extension drill bit has a flute length of 3 3/4 inches, an overall length of six inches, and a diameter of 0.397 inches.

This cobalt steel aircraft extension drill bit has a flute length of 3 3/4 inches, an overall length of six inches, and a diameter of 0.397 inches.

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Web Price : $90.59 / EACH

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DRILL BIT, AIRCRAFT EXTENSION, #31, 1 5/8 IN FLUTE L, 6 IN OVERALL L, 0.12 IN DIA, COBALT STEEL

CLARKSON-OSBORN
DRILL BIT, AIRCRAFT EXTENSION, #31, 1 5/8 IN FLUTE L, 6 IN OVERALL L, 0.12 IN DIA, COBALT STEEL
Item # CSBDR64731
Mfr. Model # DR64731

EHC: EHC :

This number 31, cobalt steel, aircraft extension drill bit has a flute length of 1 5/8 inches, an overall length of six inches, and a diameter of 0.12 inches.

This number 31, cobalt steel, aircraft extension drill bit has a flute length of 1 5/8 inches, an overall length of six inches, and a diameter of 0.12 inches.

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Web Price : $11.01 / EACH

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DRILL BIT, AIRCRAFT EXTENSION, #35, 1 1/2 IN FLUTE L, 6 IN OVERALL L, 0.111 IN DIA, COBALT STEEL

CLARKSON-OSBORN
DRILL BIT, AIRCRAFT EXTENSION, #35, 1 1/2 IN FLUTE L, 6 IN OVERALL L, 0.111 IN DIA, COBALT STEEL
Item # CSBDR64735
Mfr. Model # DR64735

EHC: EHC :

This number 35, cobalt steel, aircraft extension drill bit has a flute length of 1 1/2 inches, an overall length of six inches, and a diameter of 0.111 inches.

This number 35, cobalt steel, aircraft extension drill bit has a flute length of 1 1/2 inches, an overall length of six inches, and a diameter of 0.111 inches.

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DRILL BIT, AIRCRAFT EXTENSION, #7, 2 7/16 IN FLUTE L, 6 IN OVERALL L, 0.201 IN DIA, COBALT STEEL

CLARKSON-OSBORN
DRILL BIT, AIRCRAFT EXTENSION, #7, 2 7/16 IN FLUTE L, 6 IN OVERALL L, 0.201 IN DIA, COBALT STEEL
Item # CSBDR64707
Mfr. Model # DR64707

EHC: EHC :

This number seven, cobalt steel, aircraft extension drill bit has a flute length of 2 7/16 inches, an overall length of six inches, and a diameter of 0.201 inches.

This number seven, cobalt steel, aircraft extension drill bit has a flute length of 2 7/16 inches, an overall length of six inches, and a diameter of 0.201 inches.

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Web Price : $17.91 / EACH

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DRILL BIT, AIRCRAFT EXTENSION, #17, 2 3/16 IN FLUTE L, 6 IN OVERALL L, 0.173 IN DIA, COBALT STEEL

CLARKSON-OSBORN
DRILL BIT, AIRCRAFT EXTENSION, #17, 2 3/16 IN FLUTE L, 6 IN OVERALL L, 0.173 IN DIA, COBALT STEEL
Item # CSBDR64717
Mfr. Model # DR64717

EHC: EHC :

This number 17, cobalt steel, aircraft extension drill bit has a flute length of 2 3/16 inches, an overall length of six inches, and a diameter of 0.173 inches.

This number 17, cobalt steel, aircraft extension drill bit has a flute length of 2 3/16 inches, an overall length of six inches, and a diameter of 0.173 inches.

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Web Price : $15.10 / EACH

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DRILL BIT, AIRCRAFT EXTENSION, #54, 7/8 IN FLUTE L, 6 IN OVERALL L, 0.055 IN DIA, COBALT STEEL

CLARKSON-OSBORN
DRILL BIT, AIRCRAFT EXTENSION, #54, 7/8 IN FLUTE L, 6 IN OVERALL L, 0.055 IN DIA, COBALT STEEL
Item # CSBDR64754
Mfr. Model # DR64754

EHC: EHC :

This number 54 aircraft extension drill bit has a flute length of 7/8 inches and an overall length of six inches. It is made of cobalt steel and has a diameter of 0.055 inches.

This number 54 aircraft extension drill bit has a flute length of 7/8 inches and an overall length of six inches. It is made of cobalt steel and has a diameter of 0.055 inches.

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Web Price : $27.47 / EACH

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DRILL BIT, AIRCRAFT EXTENSION, 2 5/8 IN FLUTE L, 6 IN OVERALL L, 0.234 IN DIA, COBALT STEEL

CLARKSON-OSBORN
DRILL BIT, AIRCRAFT EXTENSION, 2 5/8 IN FLUTE L, 6 IN OVERALL L, 0.234 IN DIA, COBALT STEEL
Item # CSBDR64601
Mfr. Model # DR64601

EHC: EHC :

This cobalt steel aircraft extension drill bit has a flute length of 2 5/8 inches, an overall length of six inches, and a diameter of 0.234 inches.

This cobalt steel aircraft extension drill bit has a flute length of 2 5/8 inches, an overall length of six inches, and a diameter of 0.234 inches.

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Web Price : $33.92 / EACH

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DRILL BIT, AIRCRAFT EXTENSION, #3, 2 1/2 IN FLUTE L, 6 IN OVERALL L, 0.213 IN DIA, COBALT STEEL

CLARKSON-OSBORN
DRILL BIT, AIRCRAFT EXTENSION, #3, 2 1/2 IN FLUTE L, 6 IN OVERALL L, 0.213 IN DIA, COBALT STEEL
Item # CSBDR64703
Mfr. Model # DR64703

EHC: EHC :

This number three, cobalt steel, aircraft extension drill bit has a flute length of 2 1/2 inches, an overall length of six inches, and a diameter of 0.213 inches.

This number three, cobalt steel, aircraft extension drill bit has a flute length of 2 1/2 inches, an overall length of six inches, and a diameter of 0.213 inches.

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DRILL BIT, AIRCRAFT EXTENSION, #6, 2 1/2 IN FLUTE L, 6 IN OVERALL L, 0.204 IN DIA, COBALT STEEL

CLARKSON-OSBORN
DRILL BIT, AIRCRAFT EXTENSION, #6, 2 1/2 IN FLUTE L, 6 IN OVERALL L, 0.204 IN DIA, COBALT STEEL
Item # CSBDR64706
Mfr. Model # DR64706

EHC: EHC :

This number six, cobalt steel, aircraft extension drill bit has a flute length of 2 1/2 inches, an overall length of six inches, and a diameter of 0.204 inches.

This number six, cobalt steel, aircraft extension drill bit has a flute length of 2 1/2 inches, an overall length of six inches, and a diameter of 0.204 inches.

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For assistance please contact the SDS Coordinator by email at productcompliance@grainger.ca

CATALOGUE PAGE # N/A

This product must be purchased in quantities of 7 or more. Please update the quantity to proceed with checkout.

Availability dates may vary based on the assortment of product in the cart and is not final until you complete your order. Check Availability:

Web Price : $17.91 / EACH

EHC: EHC :

Qty:

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