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Holemaking Products - Counterbores & Porting Tools For Sale | A1 Tooling - (1669 Products)

Made in USA - 5/16" Head Diam, 1/8" Shank Diam, Counterbore Pilot - A1 Tooling

Made in USA - 5/16" Head Diam, 1/8" Shank Diam, Counterbore Pilot


Item #: 78902202
Brand: Made in USA
Model #:

Product Specifications
Head Diameter (Inch) 5/16
Shank Diameter (Inch) 1/8
Finish/Coating Bright
Aircraft-Style No
Pilot Material Carbon Steel

$12.30

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Cleveland - 9/16" Head Diam, 5/16" Shank Diam, Counterbore Pilot - A1 Tooling

Cleveland - 9/16" Head Diam, 5/16" Shank Diam, Counterbore Pilot


Item #: 63677702
Brand: Cleveland
Model #: C46630

Product Specifications
Head Diameter (Inch) 9/16
Shank Diameter (Inch) 5/16
Finish/Coating Bright
Aircraft-Style No
Pilot Material High Speed Steel
Material Application Alloy Tool Steel; Aluminum; Cast Iron; Low Carbon Steel; Medium Carbon Steel

$51.00

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Interstate - 12mm Compatible Cobalt, Solid Pilot Counterbore - A1 Tooling

Interstate - 12mm Compatible Cobalt, Solid Pilot Counterbore


Item #: 45403458
Brand: Interstate
Model #:

Features and Benefits

Cobalt is harder than high speed steel and provides better wear resistance. It is commonly used on high tensile alloys.
Product Specifications
Counterbore Diameter (mm) 20.00
Fastener Size Compatibility (mm) 12.00
Counterbore Material Cobalt
Shank Diameter (Inch) 1/2
Shank Diameter (mm) 12.70
Shank Diameter (Decimal Inch) 0.5000
Number of Flutes 3
Pilot Diameter (mm) 14.00
Shank Type Straight
Shank Taper Designation 2MT
Overall Length (mm) 190.50
Cutting Direction Forward

$58.54

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Made in USA - 7/16" Head Diam, 1/4" Shank Diam, Counterbore Pilot - A1 Tooling

Made in USA - 7/16" Head Diam, 1/4" Shank Diam, Counterbore Pilot


Item #: 78905288
Brand: Made in USA
Model #:

Product Specifications
Head Diameter (Inch) 7/16
Shank Diameter (Inch) 1/4
Finish/Coating Bright
Aircraft-Style No
Pilot Material Carbon Steel

$13.82

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Value Collection - 11/16" Head Diam, 3/8" Shank Diam, Counterbore Pilot - A1 Tooling

Value Collection - 11/16" Head Diam, 3/8" Shank Diam, Counterbore Pilot


Item #: 08907446
Brand: Value Collection
Model #:

Product Specifications
Head Diameter (Inch) 11/16
Shank Diameter (Inch) 3/8
Pilot Material Carbon Steel

$15.35

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Made in USA - 3/8" Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore - A1 Tooling

Made in USA - 3/8" Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore


Item #: 08272858
Brand: Made in USA
Model #:

Features and Benefits

High speed steel (HSS) provides good wear resistance and can be used in general purpose applications on both ferrous and nonferrous materials.
Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic.
Product Specifications
Fastener Type Compatibility Socket-Head Cap Screw
Counterbore Diameter (Decimal Inch) 0.5690
Fastener Size Compatibility (Inch) 3/8
Fastener Size Compatibility (Decimal Inch) 0.3750
Counterbore Material High Speed Steel
Finish/Coating Bright
Standard or Oversize Pilot Standard
Shank Diameter (Inch) 1/2
Shank Diameter (Decimal Inch) 0.5000
Number of Flutes 4
Aircraft-Style No
Pilot Diameter (Inch) 3/8
Pilot Diameter (Decimal Inch) 0.3750
Shank Type Straight
Overall Length (Inch) 6-1/2
Cutting Direction Forward

$65.91

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Union Butterfield - 1" Head Diam, 7/16" Shank Diam, Counterbore Pilot - A1 Tooling

Union Butterfield - 1" Head Diam, 7/16" Shank Diam, Counterbore Pilot


Item #: 66386772
Brand: Union Butterfield
Model #: 3210180

Product Specifications
Head Diameter (Inch) 1
Shank Diameter (Inch) 7/16
Finish/Coating Bright
Aircraft-Style No
Pilot Material High Speed Steel

$127.04

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Cleveland - 5/16" Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore - A1 Tooling

Cleveland - 5/16" Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore


Item #: 81853301
Brand: Cleveland
Model #: C92707

Features and Benefits

High speed steel (HSS) provides good wear resistance and can be used in general purpose applications on both ferrous and nonferrous materials.
Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic.
Product Specifications
Fastener Type Compatibility Socket-Head Cap Screw
Counterbore Diameter (Inch) 15/32
Fastener Size Compatibility (Inch) 5/16
Counterbore Material High Speed Steel
Finish/Coating Bright
Standard or Oversize Pilot Standard
Shank Diameter (Inch) 7/16
Number of Flutes 3
Aircraft-Style No
Pilot Diameter (Inch) 5/16
Shank Type Straight
Overall Length (mm) 152.40
Overall Length (Inch) 6
Overall Length (Decimal Inch) 6.00
Cutting Direction Forward
Material Application Alloy Tool Steel; Carbon Steel; Cast Iron

$125.75

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Interstate - 5/8" Compatible Cobalt, Solid Pilot Counterbore - A1 Tooling

Interstate - 5/8" Compatible Cobalt, Solid Pilot Counterbore


Item #: 45403383
Brand: Interstate
Model #:

Features and Benefits

Cobalt is harder than high speed steel and provides better wear resistance. It is commonly used on high tensile alloys.
Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic.
Product Specifications
Counterbore Diameter (Inch) 3/4
Fastener Size Compatibility (Inch) 5/8
Counterbore Material Cobalt
Finish/Coating Bright
Shank Diameter (Inch) 31/32
Pilot Diameter (Inch) 21/32
Shank Type Straight
Cutting Direction Forward

$104.73

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Made in USA - 10mm Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore - A1 Tooling

Made in USA - 10mm Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore


Item #: 01570035
Brand: Made in USA
Model #:

Features and Benefits

High speed steel (HSS) provides good wear resistance and can be used in general purpose applications on both ferrous and nonferrous materials.
Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic.
Product Specifications
Fastener Type Compatibility Socket-Head Cap Screw
Counterbore Diameter (mm) 18.00
Fastener Size Compatibility (mm) 10.00
Counterbore Material High Speed Steel
Finish/Coating Bright
Standard or Oversize Pilot Standard
Shank Diameter (Inch) 1/2
Shank Diameter (mm) 12.70
Number of Flutes 3
Aircraft-Style No
Pilot Diameter (mm) 11.00
Shank Type Straight
Overall Length (mm) 152.40
Overall Length (Inch) 6
Cutting Direction Forward

$103.16

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Made in USA - 3/16" Head Diam, 5/32" Shank Diam, Counterbore Pilot - A1 Tooling

Made in USA - 3/16" Head Diam, 5/32" Shank Diam, Counterbore Pilot


Item #: 78903127
Brand: Made in USA
Model #:

Product Specifications
Head Diameter (Inch) 3/16
Shank Diameter (Inch) 5/32
Finish/Coating Bright
Aircraft-Style No
Pilot Material Carbon Steel

$10.00

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Value Collection - 5/16" Head Diam, 1/4" Shank Diam, Counterbore Pilot - A1 Tooling

Value Collection - 5/16" Head Diam, 1/4" Shank Diam, Counterbore Pilot


Item #: 08905200
Brand: Value Collection
Model #:

Product Specifications
Head Diameter (Inch) 5/16
Shank Diameter (Inch) 1/4
Pilot Material Carbon Steel

$10.52

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Value Collection - 3/8" Head Diam, 1/8" Shank Diam, Counterbore Pilot - A1 Tooling

Value Collection - 3/8" Head Diam, 1/8" Shank Diam, Counterbore Pilot


Item #: 08902249
Brand: Value Collection
Model #:

Product Specifications
Head Diameter (Inch) 3/8
Shank Diameter (Inch) 1/8
Pilot Material Carbon Steel

$10.52

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Made in USA - #6 Wire Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore - A1 Tooling

Made in USA - #6 Wire Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore


Item #: 08272726
Brand: Made in USA
Model #:

Features and Benefits

High speed steel (HSS) provides good wear resistance and can be used in general purpose applications on both ferrous and nonferrous materials.
Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic.
Product Specifications
Fastener Type Compatibility Socket-Head Cap Screw
Counterbore Diameter (Decimal Inch) 0.2600
Fastener Size Compatibility (Wire) #6
Counterbore Material High Speed Steel
Finish/Coating Bright
Standard or Oversize Pilot Standard
Shank Diameter (Inch) 7/32
Number of Flutes 4
Aircraft-Style No
Pilot Diameter (Decimal Inch) 0.1690
Shank Type Straight
Overall Length (Inch) 4-5/8
Cutting Direction Forward

$40.72

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Keo - #5 Wire Socket Head Cap Screw Compatible, Cobalt, Solid Pilot Counterbore - A1 Tooling

Keo - #5 Wire Socket Head Cap Screw Compatible, Cobalt, Solid Pilot Counterbore


Item #: 02828424
Brand: Keo
Model #: 55205

Features and Benefits

Cobalt is harder than high speed steel and provides better wear resistance. It is commonly used on high tensile alloys.
Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic.
Product Specifications
Fastener Type Compatibility Socket-Head Cap Screw
Counterbore Diameter (Decimal Inch) 0.2370
Fastener Size Compatibility (Wire) #5
Counterbore Material Cobalt
Finish/Coating Bright
Standard or Oversize Pilot Oversize
Shank Diameter (Inch) 3/16
Number of Flutes 3
Aircraft-Style No
Pilot Diameter (Decimal Inch) 0.1560
Shank Type Straight
Overall Length (Inch) 3
Cutting Direction Forward

$50.30

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Alvord Polk - 8mm Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore - A1 Tooling

Alvord Polk - 8mm Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore


Item #: 43981455
Brand: Alvord Polk
Model #: 03084

Features and Benefits

High speed steel (HSS) provides good wear resistance and can be used in general purpose applications on both ferrous and nonferrous materials.
Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic.
Product Specifications
Fastener Type Compatibility Socket-Head Cap Screw
Counterbore Diameter (Decimal Inch) 0.5315
Fastener Size Compatibility (mm) 8.00
Fastener Size Compatibility (Decimal Inch) 0.3150
Counterbore Material High Speed Steel
Finish/Coating Bright
Standard or Oversize Pilot Standard
Shank Diameter (Decimal Inch) 0.5000
Aircraft-Style No
Pilot Diameter (Decimal Inch) 0.3346
Shank Type Straight
Overall Length (Inch) 6-1/2
Overall Length (Decimal Inch) 6.50
Cutting Direction Forward

$54.87

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Cleveland - 1/2" Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore - A1 Tooling

Cleveland - 1/2" Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore


Item #: 81852485
Brand: Cleveland
Model #: C91721

Features and Benefits

High speed steel (HSS) provides good wear resistance and can be used in general purpose applications on both ferrous and nonferrous materials.
Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic.
Product Specifications
Fastener Type Compatibility Socket-Head Cap Screw
Counterbore Diameter (mm) 19.05
Counterbore Diameter (Inch) 3/4
Counterbore Diameter (Decimal Inch) 0.7500
Fastener Size Compatibility (Inch) 1/2
Counterbore Material High Speed Steel
Finish/Coating Bright
Standard or Oversize Pilot Standard
Shank Diameter (Inch) 1/2
Shank Diameter (mm) 12.70
Shank Diameter (Decimal Inch) 0.5000
Number of Flutes 3
Aircraft-Style No
Pilot Diameter (Inch) 1/2
Pilot Diameter (mm) 12.70
Pilot Diameter (Decimal Inch) 0.5000
Shank Type Straight
Overall Length (mm) 184.15
Overall Length (Inch) 7-1/4
Overall Length (Decimal Inch) 7.25
Cutting Direction Forward
Material Application Alloy Tool Steel; Carbon Steel; Cast Iron

$172.59

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Union Butterfield - 1-1/2" Head Diam, 1/2" Shank Diam, Counterbore Pilot - A1 Tooling

Union Butterfield - 1-1/2" Head Diam, 1/2" Shank Diam, Counterbore Pilot


Item #: 65707630
Brand: Union Butterfield
Model #: 3210210

Product Specifications
Head Diameter (Inch) 1-1/2
Shank Diameter (Inch) 1/2
Finish/Coating Bright
Aircraft-Style No
Pilot Material High Speed Steel

$206.79

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Made in USA - 8mm Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore - A1 Tooling

Made in USA - 8mm Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore


Item #: 01570027
Brand: Made in USA
Model #:

Features and Benefits

High speed steel (HSS) provides good wear resistance and can be used in general purpose applications on both ferrous and nonferrous materials.
Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic.
Product Specifications
Fastener Type Compatibility Socket-Head Cap Screw
Counterbore Diameter (mm) 15.00
Fastener Size Compatibility (mm) 8.00
Counterbore Material High Speed Steel
Finish/Coating Bright
Standard or Oversize Pilot Standard
Shank Diameter (Inch) 3/8
Shank Diameter (mm) 9.53
Number of Flutes 3
Aircraft-Style No
Pilot Diameter (mm) 9.00
Shank Type Straight
Overall Length (mm) 152.40
Overall Length (Inch) 6
Cutting Direction Forward

$89.75

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Made in USA - 13/16" Head Diam, 5/16" Shank Diam, Counterbore Pilot - A1 Tooling

Made in USA - 13/16" Head Diam, 5/16" Shank Diam, Counterbore Pilot


Item #: 78906526
Brand: Made in USA
Model #:

Product Specifications
Head Diameter (Inch) 13/16
Shank Diameter (Inch) 5/16
Finish/Coating Bright
Aircraft-Style No
Pilot Material Carbon Steel

$32.14

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