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

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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Alvord Polk - 5mm Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore - A1 Tooling

Alvord Polk - 5mm Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore


Item #: 43983766
Brand: Alvord Polk
Model #: 03082

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) 0.3543
Fastener Size Compatibility (mm) 5.00
Fastener Size Compatibility (Decimal Inch) 0.1969
Counterbore Material High Speed Steel
Finish/Coating Bright
Standard or Oversize Pilot Standard
Shank Diameter (Decimal Inch) 0.3125
Aircraft-Style No
Pilot Diameter (Decimal Inch) 0.2165
Shank Type Straight
Overall Length (Inch) 5-5/8
Overall Length (Decimal Inch) 5.63
Cutting Direction Forward

$41.87

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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 #: 81852568
Brand: Cleveland
Model #: C91726

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) 7/8
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) 5/8
Shank Type Straight
Overall Length (Inch) 8-1/4
Overall Length (Decimal Inch) 8.25
Cutting Direction Forward
Material Application Alloy Tool Steel; Carbon Steel; Cast Iron

$212.83

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Value Collection - 5/8" Head Diam, 5/16" Shank Diam, Counterbore Pilot - A1 Tooling

Value Collection - 5/8" Head Diam, 5/16" Shank Diam, Counterbore Pilot


Item #: 08906406
Brand: Value Collection
Model #:

Product Specifications
Head Diameter (Inch) 5/8
Shank Diameter (Inch) 5/16
Pilot Material Carbon Steel

$16.60

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Value Collection - 11/32" Head Diam, 1/4" Shank Diam, Counterbore Pilot - A1 Tooling

Value Collection - 11/32" Head Diam, 1/4" Shank Diam, Counterbore Pilot


Item #: 08905226
Brand: Value Collection
Model #:

Product Specifications
Head Diameter (Inch) 11/32
Shank Diameter (Inch) 1/4
Pilot Material Carbon Steel

$10.52

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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 #: 02828655
Brand: Keo
Model #: 55228

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) 0.7730
Fastener Size Compatibility (Inch) 1/2
Counterbore Material Cobalt
Finish/Coating Bright
Standard or Oversize Pilot Oversize
Shank Diameter (Inch) 1/2
Number of Flutes 3
Aircraft-Style No
Pilot Diameter (Decimal Inch) 0.5150
Shank Type Straight
Overall Length (Inch) 6
Cutting Direction Forward

$95.64

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Cleveland - 7/16" Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore - A1 Tooling

Cleveland - 7/16" Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore


Item #: 81852428
Brand: Cleveland
Model #: C91719

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) 21/32
Fastener Size Compatibility (Inch) 7/16
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) 15/32
Shank Type Straight
Overall Length (mm) 177.80
Overall Length (Inch) 7
Overall Length (Decimal Inch) 7.00
Cutting Direction Forward
Material Application Alloy Tool Steel; Carbon Steel; Cast Iron

$160.37

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Union Butterfield - 9/32" Head Diam, 1/4" Shank Diam, Counterbore Pilot - A1 Tooling

Union Butterfield - 9/32" Head Diam, 1/4" Shank Diam, Counterbore Pilot


Item #: 66386913
Brand: Union Butterfield
Model #: 3210302

Product Specifications
Head Diameter (Inch) 9/32
Shank Diameter (Inch) 1/4
Finish/Coating Bright
Aircraft-Style No
Pilot Material High Speed Steel

$43.11

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Keo - #6 Wire Socket Head Cap Screw Compatible, Cobalt, Solid Pilot Counterbore - A1 Tooling

Keo - #6 Wire Socket Head Cap Screw Compatible, Cobalt, Solid Pilot Counterbore


Item #: 02828440
Brand: Keo
Model #: 55207

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) 0.2440
Fastener Size Compatibility (Wire) #6
Counterbore Material Cobalt
Finish/Coating Bright
Standard or Oversize Pilot Oversize
Shank Diameter (Inch) 7/32
Number of Flutes 3
Aircraft-Style No
Pilot Diameter (Decimal Inch) 0.1530
Shank Type Straight
Overall Length (Inch) 3
Cutting Direction Forward

$55.48

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Value Collection - 7/16" Compatible High Speed Steel, Solid Pilot Counterbore - A1 Tooling

Value Collection - 7/16" Compatible High Speed Steel, Solid Pilot Counterbore


Item #: 08862286
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) 11/16
Fastener Size Compatibility (Inch) 7/16
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) 15/32
Shank Type Straight
Cutting Direction Forward

$51.81

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Union Butterfield - 9/32" Head Diam, 3/16" Shank Diam, Counterbore Pilot - A1 Tooling

Union Butterfield - 9/32" Head Diam, 3/16" Shank Diam, Counterbore Pilot


Item #: 65706764
Brand: Union Butterfield
Model #: 3210287

Product Specifications
Head Diameter (Inch) 9/32
Shank Diameter (Inch) 3/16
Finish/Coating Bright
Aircraft-Style No
Pilot Material High Speed Steel

$44.84

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

Cleveland - 3/32" Shank Diam, Counterbore Pilot


Item #: 63676803
Brand: Cleveland
Model #: C46533

Product Specifications
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

$22.20

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Union Butterfield - 5/16" Head Diam, 5/32" Shank Diam, Counterbore Pilot - A1 Tooling

Union Butterfield - 5/16" Head Diam, 5/32" Shank Diam, Counterbore Pilot


Item #: 65707010
Brand: Union Butterfield
Model #: 3210123

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

$44.84

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Keo - 7/8" Socket Head Cap Screw Compatible, Cobalt, Solid Pilot Counterbore - A1 Tooling

Keo - 7/8" Socket Head Cap Screw Compatible, Cobalt, Solid Pilot Counterbore


Item #: 02828721
Brand: Keo
Model #: 55235

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) 1.3750
Fastener Size Compatibility (Inch) 7/8
Counterbore Material Cobalt
Finish/Coating Bright
Standard or Oversize Pilot Standard
Shank Diameter (Inch) 7/8
Number of Flutes 3
Aircraft-Style No
Pilot Diameter (Decimal Inch) 0.8910
Shank Type Straight
Overall Length (Inch) 7
Cutting Direction Forward

$310.26

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

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


Item #: 44850808
Brand: Keo
Model #: 56209

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) 10.00
Fastener Size Compatibility (mm) 5.00
Counterbore Material Cobalt
Finish/Coating Bright
Standard or Oversize Pilot Standard
Shank Diameter (mm) 8.00
Number of Flutes 3
Pilot Diameter (mm) 4.20
Overall Length (mm) 80.00

$58.60

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