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

Keo - #10 Wire Socket Head Cap Screw Compatible, Cobalt, Solid Pilot Counterbore - A1 Tooling

Keo - #10 Wire Socket Head Cap Screw Compatible, Cobalt, Solid Pilot Counterbore


Item #: 02828499
Brand: Keo
Model #: 55212

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) 0.3140
Fastener Size Compatibility (Wire) #10
Counterbore Material Cobalt
Finish/Coating Bright
Standard or Oversize Pilot Standard
Shank Diameter (Inch) 9/32
Number of Flutes 3
Aircraft-Style No
Pilot Diameter (Decimal Inch) 0.1900
Shank Type Straight
Overall Length (Inch) 4-1/2
Cutting Direction Forward

$59.90

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Cleveland - #10 Wire Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore - A1 Tooling

Cleveland - #10 Wire Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore


Item #: 81852105
Brand: Cleveland
Model #: C91699

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) 0.3160
Fastener Size Compatibility (Wire) #10
Counterbore Material High Speed Steel
Finish/Coating Bright
Standard or Oversize Pilot Standard
Shank Diameter (Inch) 5/16
Number of Flutes 3
Aircraft-Style No
Pilot Diameter (Decimal Inch) 0.1870
Shank Type Straight
Overall Length (mm) 88.90
Overall Length (Inch) 3-1/2
Overall Length (Decimal Inch) 3.50
Cutting Direction Forward
Material Application Alloy Tool Steel; Carbon Steel; Cast Iron

$102.61

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Made in USA - #4 Wire Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore - A1 Tooling

Made in USA - #4 Wire Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore


Item #: 06330864
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) 0.1990
Fastener Size Compatibility (Wire) #4
Counterbore Material High Speed Steel
Finish/Coating Bright
Standard or Oversize Pilot Standard
Shank Diameter (Inch) 5/32
Number of Flutes 4
Aircraft-Style No
Pilot Diameter (Decimal Inch) 0.1270
Shank Type Straight
Overall Length (Inch) 3-7/8
Cutting Direction Forward

$30.02

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Value Collection - 3/8" Compatible High Speed Steel, Solid Pilot Counterbore - A1 Tooling

Value Collection - 3/8" Compatible High Speed Steel, Solid Pilot Counterbore


Item #: 08862245
Brand: Value Collection
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.
Product Specifications
Counterbore Diameter (Inch) 19/32
Fastener Size Compatibility (Inch) 3/8
Counterbore Material High Speed Steel
Standard or Oversize Pilot Standard
Shank Diameter (Inch) 1/2
Number of Flutes 3
Aircraft-Style No
Pilot Diameter (Inch) 13/32
Shank Type Straight
Cutting Direction Forward

$51.15

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Union Butterfield - 5/16" Head Diam, 1/8" Shank Diam, Counterbore Pilot - A1 Tooling

Union Butterfield - 5/16" Head Diam, 1/8" Shank Diam, Counterbore Pilot


Item #: 74201732
Brand: Union Butterfield
Model #: 3210262

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

$43.11

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

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


Item #: 63677918
Brand: Cleveland
Model #: C46659

Product Specifications
Head Diameter (Inch) 11/16
Shank Diameter (Inch) 3/8
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

$56.45

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Alvord Polk - 10-32 Fillister Head Screw Compatible, High Speed Steel, Solid Pilot Counterbore - A1 Tooling

Alvord Polk - 10-32 Fillister Head Screw Compatible, High Speed Steel, Solid Pilot Counterbore


Item #: 43981570
Brand: Alvord Polk
Model #: 03012

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 Fillister-Head Screw
Counterbore Diameter (Decimal Inch) 0.3140
Fastener Size Compatibility (Inch) 10-32
Counterbore Material High Speed Steel
Finish/Coating Bright
Standard or Oversize Pilot Standard
Shank Diameter (Decimal Inch) 0.2812
Aircraft-Style No
Pilot Diameter (Decimal Inch) 0.1900
Shank Type Straight
Overall Length (Inch) 5-1/4
Overall Length (Decimal Inch) 5.25
Cutting Direction Forward

$37.15

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Keo - 4mm Socket Head Cap Screw Compatible, Cobalt, Solid Pilot Counterbore - A1 Tooling

Keo - 4mm Socket Head Cap Screw Compatible, Cobalt, Solid Pilot Counterbore


Item #: 44850816
Brand: Keo
Model #: 56208

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 (mm) 8.00
Fastener Size Compatibility (mm) 4.00
Counterbore Material Cobalt
Finish/Coating Bright
Standard or Oversize Pilot Standard
Shank Diameter (mm) 5.00
Number of Flutes 3
Pilot Diameter (mm) 4.50
Overall Length (mm) 71.00

$55.14

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Keo - 1/2" Socket Head Cap Screw Compatible, Cobalt, Solid Pilot Counterbore - A1 Tooling

Keo - 1/2" Socket Head Cap Screw Compatible, Cobalt, Solid Pilot Counterbore


Item #: 02828648
Brand: Keo
Model #: 55227

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) 0.7570
Fastener Size Compatibility (Inch) 1/2
Counterbore Material Cobalt
Finish/Coating Bright
Standard or Oversize Pilot Standard
Shank Diameter (Inch) 1/2
Number of Flutes 3
Aircraft-Style No
Pilot Diameter (Decimal Inch) 0.5000
Shank Type Straight
Overall Length (Inch) 6
Cutting Direction Forward

$95.64

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Made in USA - 15/16" Head Diam, 3/8" Shank Diam, Counterbore Pilot - A1 Tooling

Made in USA - 15/16" Head Diam, 3/8" Shank Diam, Counterbore Pilot


Item #: 78907607
Brand: Made in USA
Model #:

Product Specifications
Head Diameter (Inch) 15/16
Shank Diameter (Inch) 3/8
Finish/Coating Bright
Aircraft-Style No
Pilot Material Carbon Steel

$34.82

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

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


Item #: 03304425
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) 0.7890
Fastener Size Compatibility (Inch) 1/2
Counterbore Material High Speed Steel
Finish/Coating Bright
Standard or Oversize Pilot Standard
Shank Diameter (Inch) 1/2
Number of Flutes 4
Aircraft-Style No
Pilot Diameter (Decimal Inch) 0.5310
Shank Type Straight
Overall Length (Inch) 7-1/2
Cutting Direction Forward

$72.93

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Union Butterfield - 13/16" Head Diam, 1/4" Shank Diam, Counterbore Pilot - A1 Tooling

Union Butterfield - 13/16" Head Diam, 1/4" Shank Diam, Counterbore Pilot


Item #: 66386723
Brand: Union Butterfield
Model #: 3210140

Product Specifications
Head Diameter (Inch) 13/16
Shank Diameter (Inch) 1/4
Finish/Coating Bright
Aircraft-Style No
Pilot Material High Speed Steel

$104.40

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Keo - 3/8" Socket Head Cap Screw Compatible, Cobalt, Solid Pilot Counterbore - A1 Tooling

Keo - 3/8" Socket Head Cap Screw Compatible, Cobalt, Solid Pilot Counterbore


Item #: 02828580
Brand: Keo
Model #: 55221

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) 0.5720
Fastener Size Compatibility (Inch) 3/8
Counterbore Material Cobalt
Finish/Coating Bright
Standard or Oversize Pilot Standard
Shank Diameter (Inch) 1/2
Number of Flutes 3
Aircraft-Style No
Pilot Diameter (Decimal Inch) 0.3750
Shank Type Straight
Overall Length (Inch) 5
Cutting Direction Forward

$72.37

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Keo - #10 Wire Socket Head Cap Screw Compatible, Cobalt, Solid Pilot Counterbore - A1 Tooling

Keo - #10 Wire Socket Head Cap Screw Compatible, Cobalt, Solid Pilot Counterbore


Item #: 02828515
Brand: Keo
Model #: 55214

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) 0.3460
Fastener Size Compatibility (Wire) #10
Counterbore Material Cobalt
Finish/Coating Bright
Standard or Oversize Pilot Oversize
Shank Diameter (Inch) 9/32
Number of Flutes 3
Aircraft-Style No
Pilot Diameter (Decimal Inch) 0.2210
Shank Type Straight
Overall Length (Inch) 4-1/2
Cutting Direction Forward

$59.90

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Cleveland - 3/8" Head Diam, 3/32" Shank Diam, Counterbore Pilot - A1 Tooling

Cleveland - 3/8" Head Diam, 3/32" Shank Diam, Counterbore Pilot


Item #: 63676902
Brand: Cleveland
Model #: C46314

Product Specifications
Head Diameter (Inch) 3/8
Shank Diameter (Inch) 3/32
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

$30.04

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Value Collection - #2 Wire Fillister Head Screw Compatible, High Speed Steel, Solid Pilot Counterbore - A1 Tooling

Value Collection - #2 Wire Fillister Head Screw Compatible, High Speed Steel, Solid Pilot Counterbore


Item #: 08860025
Brand: Value Collection
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.
Product Specifications
Fastener Type Compatibility Fillister-Head Screw
Counterbore Diameter (Decimal Inch) 0.1550
Fastener Size Compatibility (Wire) #2
Counterbore Material High Speed Steel
Standard or Oversize Pilot Standard
Shank Diameter (Decimal Inch) 0.1875
Number of Flutes 2
Aircraft-Style No
Pilot Diameter (Decimal Inch) 0.0850
Shank Type Straight
Overall Length (Inch) 2-1/2
Cutting Direction Forward

$14.96

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Made in USA - 5/8" Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore - A1 Tooling

Made in USA - 5/8" Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore


Item #: 08272932
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) 0.9430
Fastener Size Compatibility (Inch) 5/8
Fastener Size Compatibility (Decimal Inch) 0.6250
Counterbore Material High Speed Steel
Finish/Coating Bright
Standard or Oversize Pilot Standard
Shank Diameter (Inch) 5/8
Shank Diameter (Decimal Inch) 0.6250
Number of Flutes 4
Aircraft-Style No
Pilot Diameter (Inch) 5/8
Pilot Diameter (Decimal Inch) 0.6250
Shank Type Straight
Overall Length (Inch) 7-5/8
Cutting Direction Forward

$148.52

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Keo - 4mm Socket Head Cap Screw Compatible, Cobalt, Solid Pilot Counterbore - A1 Tooling

Keo - 4mm Socket Head Cap Screw Compatible, Cobalt, Solid Pilot Counterbore


Item #: 44850832
Brand: Keo
Model #: 56206

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 (mm) 8.00
Fastener Size Compatibility (mm) 4.00
Counterbore Material Cobalt
Finish/Coating Bright
Standard or Oversize Pilot Standard
Shank Diameter (mm) 5.00
Number of Flutes 3
Pilot Diameter (mm) 3.30
Overall Length (mm) 71.00

$55.14

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Cleveland - 5/8" Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore - A1 Tooling

Cleveland - 5/8" Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore


Item #: 81852584
Brand: Cleveland
Model #: C91728

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) 29/32
Fastener Size Compatibility (Inch) 5/8
Counterbore Material High Speed Steel
Finish/Coating Bright
Standard or Oversize Pilot Standard
Shank Diameter (Inch) 3/4
Shank Diameter (mm) 19.05
Shank Diameter (Decimal Inch) 0.7500
Number of Flutes 3
Aircraft-Style No
Pilot Diameter (Inch) 21/32
Shank Type Straight
Overall Length (mm) 209.55
Overall Length (Inch) 8-1/4
Overall Length (Decimal Inch) 8.25
Cutting Direction Forward
Material Application Alloy Tool Steel; Carbon Steel; Cast Iron

$230.52

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Value Collection - #12 Wire Fillister Head Screw Compatible, High Speed Steel, Solid Pilot Counterbore - A1 Tooling

Value Collection - #12 Wire Fillister Head Screw Compatible, High Speed Steel, Solid Pilot Counterbore


Item #: 08860124
Brand: Value Collection
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.
Product Specifications
Fastener Type Compatibility Fillister-Head Screw
Counterbore Diameter (Decimal Inch) 0.3720
Fastener Size Compatibility (Wire) #12
Counterbore Material High Speed Steel
Standard or Oversize Pilot Standard
Shank Diameter (Decimal Inch) 0.3750
Number of Flutes 2
Aircraft-Style No
Pilot Diameter (Decimal Inch) 0.2150
Shank Type Straight
Overall Length (Inch) 3
Cutting Direction Forward

$23.19

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