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

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 #: 81853327
Brand: Cleveland
Model #: C91711

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) 12.70
Counterbore Diameter (Inch) 1/2
Counterbore Diameter (Decimal Inch) 0.5000
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) 11/32
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

$135.22

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Value Collection - 7/16" Head Diam, 5/16" Shank Diam, Counterbore Pilot - A1 Tooling

Value Collection - 7/16" Head Diam, 5/16" Shank Diam, Counterbore Pilot


Item #: 08906281
Brand: Value Collection
Model #:

Product Specifications
Head Diameter (Inch) 7/16
Shank Diameter (Inch) 5/16
Pilot Material Carbon Steel

$12.05

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

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


Item #: 44850758
Brand: Keo
Model #: 56213

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) 11.00
Fastener Size Compatibility (mm) 6.00
Counterbore Material Cobalt
Finish/Coating Bright
Standard or Oversize Pilot Standard
Shank Diameter (mm) 8.00
Number of Flutes 3
Pilot Diameter (mm) 6.40
Overall Length (mm) 80.00

$60.89

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Made in USA - 7/32" Head Diam, 1/8" Shank Diam, Counterbore Pilot - A1 Tooling

Made in USA - 7/32" Head Diam, 1/8" Shank Diam, Counterbore Pilot


Item #: 78902145
Brand: Made in USA
Model #:

Product Specifications
Head Diameter (Inch) 7/32
Shank Diameter (Inch) 1/8
Finish/Coating Bright
Aircraft-Style No
Pilot Material Carbon Steel

$12.28

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Value Collection - 39 Piece, 3 Flutes, Straight Shank, Interchangeable Pilot Counterbore Set - A1 Tooling

Value Collection - 39 Piece, 3 Flutes, Straight Shank, Interchangeable Pilot Counterbore Set


Item #: 08794844
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.
Straight shanks are used for general purpose applications. The shank is smaller than the drill bit diameter. They are used with portable drills and drill presses on ferrous and non-ferrous materials.
Product Specifications
Number of Flutes 3
Counterbore Material High Speed Steel
Aircraft-Style No
Finish/Coating Bright
Fastener Size Compatibility (Inch) 1/4; 5/16; 3/8; 7/16; 1/2; 9/16; 5/8; 11/16; 3/4; 13/16; 7/8; 15/16; 1
Number of Pieces 39
Shank Type Straight
Standard or Oversize Pilot Standard
Storage Unit Type Case
Storage Unit Material Wood

$1,011.56

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Cleveland - #12 Wire Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore - A1 Tooling

Cleveland - #12 Wire Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore


Item #: 81852147
Brand: Cleveland
Model #: C91701

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) 0.3480
Fastener Size Compatibility (Wire) #12
Counterbore Material High Speed Steel
Finish/Coating Bright
Standard or Oversize Pilot Standard
Shank Diameter (Inch) 11/32
Number of Flutes 3
Aircraft-Style No
Pilot Diameter (Decimal Inch) 0.2130
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

$120.86

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Cleveland - 11/32" Head Diam, 1/8" Shank Diam, Counterbore Pilot - A1 Tooling

Cleveland - 11/32" Head Diam, 1/8" Shank Diam, Counterbore Pilot


Item #: 63677041
Brand: Cleveland
Model #: C46576

Product Specifications
Head Diameter (Inch) 11/32
Shank Diameter (Inch) 1/8
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

$29.61

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Union Butterfield - 7/16" Head Diam, 3/8" Shank Diam, Counterbore Pilot - A1 Tooling

Union Butterfield - 7/16" Head Diam, 3/8" Shank Diam, Counterbore Pilot


Item #: 65706913
Brand: Union Butterfield
Model #: 3210155

Product Specifications
Head Diameter (Inch) 7/16
Shank Diameter (Inch) 3/8
Finish/Coating Bright
Aircraft-Style No
Pilot Material High Speed Steel

$48.52

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Interstate - 4mm Compatible Cobalt, Solid Pilot Counterbore - A1 Tooling

Interstate - 4mm Compatible Cobalt, Solid Pilot Counterbore


Item #: 45403409
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) 8.00
Fastener Size Compatibility (mm) 4.00
Counterbore Material Cobalt
Shank Diameter (Decimal Inch) 0.3120
Number of Flutes 3
Pilot Diameter (mm) 4.50
Shank Type Straight
Overall Length (mm) 88.90
Cutting Direction Forward

$28.57

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Made in USA - #10 to #4 Wire Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore Set - A1 Tooling

Made in USA - #10 to #4 Wire Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore Set


Item #: 08273021
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.
Straight shanks are used for general purpose applications. The shank is smaller than the drill bit diameter. They are used with portable drills and drill presses on ferrous and non-ferrous materials.
Product Specifications
Fastener Type Compatibility Socket-Head Cap Screw
Minimum Fastener Size Compatibility (Inch) 1/4
Minimum Fastener Size Compatibility (Wire) #10
Maximum Fastener Size Compatibility (Wire) #4
Maximum Fastener Size Compatibility (Inch) 1/2
Standard or Oversize Pilot Oversize
Number of Flutes 3
Counterbore Material High Speed Steel
Finish/Coating Bright
Fastener Size Compatibility (Wire) #4; #5; #6; #8; #10
Fastener Size Compatibility (Inch) 1/4; 5/16; 3/8; 7/16; 1/2
Number of Pieces 10
Shank Type Straight
Cutting Direction Forward
Oversize Increment (Inch) 1/32
Storage Unit Type Case
Storage Unit Material Wood
Aircraft-Style No

$437.48

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Keo - 7/16" Socket Head Cap Screw Compatible, Cobalt, Solid Pilot Counterbore - A1 Tooling

Keo - 7/16" Socket Head Cap Screw Compatible, Cobalt, Solid Pilot Counterbore


Item #: 02828614
Brand: Keo
Model #: 55224

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) 0.6630
Fastener Size Compatibility (Inch) 7/16
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) 0.4370
Shank Type Straight
Overall Length (Inch) 5
Cutting Direction Forward

$86.50

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Cleveland - 19/32" Head Diam, 3/8" Shank Diam, Counterbore Pilot - A1 Tooling

Cleveland - 19/32" Head Diam, 3/8" Shank Diam, Counterbore Pilot


Item #: 63677884
Brand: Cleveland
Model #: C46639

Product Specifications
Head Diameter (Inch) 19/32
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

$48.97

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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 #: 81853442
Brand: Cleveland
Model #: C91720

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) 11/16
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

$172.59

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Union Butterfield - 11/32" Head Diam, 3/16" Shank Diam, Counterbore Pilot - A1 Tooling

Union Butterfield - 11/32" Head Diam, 3/16" Shank Diam, Counterbore Pilot


Item #: 65707317
Brand: Union Butterfield
Model #: 3210444

Product Specifications
Head Diameter (Inch) 11/32
Shank Diameter (Inch) 3/16
Finish/Coating Bright
Aircraft-Style No
Pilot Material High Speed Steel

$43.11

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Cleveland - 3/4" Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore - A1 Tooling

Cleveland - 3/4" Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore


Item #: 81852683
Brand: Cleveland
Model #: C91734

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) 1-1/32
Fastener Size Compatibility (Inch) 3/4
Counterbore Material High Speed Steel
Finish/Coating Bright
Standard or Oversize Pilot Standard
Shank Diameter (Inch) 1
Shank Diameter (mm) 25.40
Shank Diameter (Decimal Inch) 1.0000
Number of Flutes 3
Aircraft-Style No
Pilot Diameter (Inch) 25/32
Shank Type Straight
Overall Length (Inch) 8-13/16
Cutting Direction Forward
Material Application Alloy Tool Steel; Carbon Steel; Cast Iron

$290.80

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Cleveland - 7/32" Head Diam, 1/8" Shank Diam, Counterbore Pilot - A1 Tooling

Cleveland - 7/32" Head Diam, 1/8" Shank Diam, Counterbore Pilot


Item #: 63676985
Brand: Cleveland
Model #: C46548

Product Specifications
Head Diameter (Inch) 7/32
Shank Diameter (Inch) 1/8
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

$27.33

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

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


Item #: 08860322
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 (Inch) 25/32
Counterbore Material High Speed Steel
Standard or Oversize Pilot Standard
Shank Diameter (Inch) 1/2
Number of Flutes 2
Aircraft-Style No
Pilot Diameter (Inch) 1/2
Shank Type Straight
Overall Length (Inch) 5-1/4
Cutting Direction Forward

$52.18

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Keo - 12mm Socket Head Cap Screw Compatible, Cobalt, Solid Pilot Counterbore - A1 Tooling

Keo - 12mm Socket Head Cap Screw Compatible, Cobalt, Solid Pilot Counterbore


Item #: 44850626
Brand: Keo
Model #: 56223

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) 20.00
Fastener Size Compatibility (mm) 12.00
Counterbore Material Cobalt
Finish/Coating Bright
Standard or Oversize Pilot Standard
Shank Diameter (mm) 12.50
Number of Flutes 3
Pilot Diameter (mm) 14.00
Overall Length (mm) 100.00

$89.46

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Interstate - 1/4" Socket Head Cap Screw Compatible, Cobalt, Solid Pilot Counterbore - A1 Tooling

Interstate - 1/4" Socket Head Cap Screw Compatible, Cobalt, Solid Pilot Counterbore


Item #: 45403334
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
Fastener Type Compatibility Socket-Head Cap Screw
Counterbore Diameter (Inch) 13/32
Fastener Size Compatibility (Inch) 1/4
Counterbore Material Cobalt
Finish/Coating Bright
Shank Diameter (Inch) 3/8
Number of Flutes 3
Pilot Diameter (Inch) 9/32
Shank Type Straight
Overall Length (Inch) 4-1/2
Cutting Direction Forward

$48.62

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

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


Item #: 43997899
Brand: Alvord Polk
Model #: 33012

Features and Benefits

Titanium Nitride (TiN) is a multi-purpose coating which increases chip flow in softer materials. The heat and hardness resistance allows the tool to run at higher speeds than uncoated tools.
Product Specifications
Fastener Type Compatibility Fillister-Head Screw
Counterbore Diameter (Decimal Inch) 0.3140
Fastener Size Compatibility (Inch) 10-32
Finish/Coating TiN
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

$49.87

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