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

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

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


Item #: 45403375
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) 3/4
Fastener Size Compatibility (Inch) 1/2
Counterbore Material Cobalt
Finish/Coating Bright
Shank Diameter (Inch) 25/32
Number of Flutes 3
Pilot Diameter (Inch) 17/32
Shank Type Straight
Overall Length (Inch) 4-1/2
Cutting Direction Forward

$75.87

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Interstate - 10mm Compatible Cobalt, Solid Pilot Counterbore - A1 Tooling

Interstate - 10mm Compatible Cobalt, Solid Pilot Counterbore


Item #: 45403441
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) 18.00
Fastener Size Compatibility (mm) 10.00
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) 11.00
Shank Type Straight
Overall Length (mm) 152.40
Cutting Direction Forward

$54.44

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Cleveland - 7/16" Head Diam, 1/4" Shank Diam, Counterbore Pilot - A1 Tooling

Cleveland - 7/16" Head Diam, 1/4" Shank Diam, Counterbore Pilot


Item #: 63677470
Brand: Cleveland
Model #: C46599

Product Specifications
Head Diameter (Inch) 7/16
Shank Diameter (Inch) 1/4
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

$36.72

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Value Collection - 11 Piece, 3 Flutes, Straight Shank, Interchangeable Pilot Counterbore Set - A1 Tooling

Value Collection - 11 Piece, 3 Flutes, Straight Shank, Interchangeable Pilot Counterbore Set


Item #: 08794026
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) 3/16; 7/32; 1/4; 9/32; 5/16; 11/32; 3/8; 13/32; 7/16; 15/32; 1/2
Number of Pieces 11
Shank Type Straight
Standard or Oversize Pilot Standard
Storage Unit Type Block
Storage Unit Material Wood

$481.24

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Alvord Polk - 4-40 Fillister Head Screw Compatible, High Speed Steel, Solid Pilot Counterbore - A1 Tooling

Alvord Polk - 4-40 Fillister Head Screw Compatible, High Speed Steel, Solid Pilot Counterbore


Item #: 43981612
Brand: Alvord Polk
Model #: 03000

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) 0.1860
Fastener Size Compatibility (Inch) 4-40
Counterbore Material High Speed Steel
Finish/Coating Bright
Standard or Oversize Pilot Standard
Shank Diameter (Decimal Inch) 0.1562
Aircraft-Style No
Pilot Diameter (Decimal Inch) 0.1120
Shank Type Straight
Overall Length (Inch) 3-7/8
Overall Length (Decimal Inch) 3.88
Cutting Direction Forward

$32.72

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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 #: 08273047
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 Standard
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
Storage Unit Type Case
Storage Unit Material Wood
Aircraft-Style No

$437.48

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Keo - #10 to #4 Wire Socket Head Cap Screw Compatible, Cobalt, Solid Pilot Counterbore Set - A1 Tooling

Keo - #10 to #4 Wire Socket Head Cap Screw Compatible, Cobalt, Solid Pilot Counterbore Set


Item #: 02828770
Brand: Keo
Model #: 55240

Features and Benefits

Cobalt is harder than high speed steel and provides better wear resistance. It is commonly used on high tensile alloys.
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 (mm) 6
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 Cobalt
Finish/Coating Bright
Fastener Size Compatibility (Wire) #4; #6; #8; #10
Fastener Size Compatibility (Inch) 1/4; 5/16; 3/8; 1/2
Number of Pieces 7
Shank Type Straight
Cutting Direction Forward
Oversize Increment (Inch) 1/64
Storage Unit Type Case
Storage Unit Material Plastic
Aircraft-Style No

$464.76

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Union Butterfield - 5/8" Head Diam, 1/4" Shank Diam, Counterbore Pilot - A1 Tooling

Union Butterfield - 5/8" Head Diam, 1/4" Shank Diam, Counterbore Pilot


Item #: 65706988
Brand: Union Butterfield
Model #: 3210137

Product Specifications
Head Diameter (Inch) 5/8
Shank Diameter (Inch) 1/4
Finish/Coating Bright
Aircraft-Style No
Pilot Material High Speed Steel

$80.05

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Cleveland - 3/4" Head Diam, 3/16" Shank Diam, Counterbore Pilot - A1 Tooling

Cleveland - 3/4" Head Diam, 3/16" Shank Diam, Counterbore Pilot


Item #: 63677397
Brand: Cleveland
Model #: C46316

Product Specifications
Head Diameter (Inch) 3/4
Shank Diameter (Inch) 3/16
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

$57.70

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Cleveland - 11/16" Head Diam, 1/4" Shank Diam, Counterbore Pilot - A1 Tooling

Cleveland - 11/16" Head Diam, 1/4" Shank Diam, Counterbore Pilot


Item #: 63677553
Brand: Cleveland
Model #: C46657

Product Specifications
Head Diameter (Inch) 11/16
Shank Diameter (Inch) 1/4
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

$54.30

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Interstate - 5mm Compatible Cobalt, Solid Pilot Counterbore - A1 Tooling

Interstate - 5mm Compatible Cobalt, Solid Pilot Counterbore


Item #: 45403417
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) 10.00
Fastener Size Compatibility (mm) 5.00
Counterbore Material Cobalt
Shank Diameter (Decimal Inch) 0.3750
Number of Flutes 3
Pilot Diameter (mm) 5.50
Shank Type Straight
Overall Length (mm) 127.00
Cutting Direction Forward

$38.20

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Cleveland - 9/16" Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore - A1 Tooling

Cleveland - 9/16" Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore


Item #: 81852527
Brand: Cleveland
Model #: C91724

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) 13/16
Fastener Size Compatibility (Inch) 9/16
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) 9/16
Shank Type Straight
Overall Length (mm) 190.50
Overall Length (Inch) 7-1/2
Overall Length (Decimal Inch) 7.50
Cutting Direction Forward
Material Application Alloy Tool Steel; Carbon Steel; Cast Iron

$186.98

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

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


Item #: 63677033
Brand: Cleveland
Model #: C46569

Product Specifications
Head Diameter (Inch) 5/16
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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Made in USA - 4 Flutes, 1-1/8" Diam, 3/8" Pilot Hole Diam, High Speed Steel Reverse Counterbore - A1 Tooling

Made in USA - 4 Flutes, 1-1/8" Diam, 3/8" Pilot Hole Diam, High Speed Steel Reverse Counterbore


Item #: 09937459
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.
Product Specifications
Counterbore Diameter (Inch) 1-1/8
Pilot Hole Diameter (Inch) 3/8
Counterbore Material High Speed Steel
Standard Pilot Model Number Compatibility 185-7
Oversize Pilot Model Number Compatibility 186-14
Number of Flutes 4
Overall Length (Inch) 7/8
Corner Radius (Inch) 1/32
Aircraft-Style No

$110.84

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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 #: 81853731
Brand: Cleveland
Model #: C91737

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) 1-3/16
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) 13/16
Shank Type Straight
Overall Length (Inch) 8-13/16
Cutting Direction Forward
Material Application Alloy Tool Steel; Carbon Steel; Cast Iron

$298.32

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Value Collection - 3/4" Head Diam, 3/8" Shank Diam, Counterbore Pilot - A1 Tooling

Value Collection - 3/4" Head Diam, 3/8" Shank Diam, Counterbore Pilot


Item #: 08907487
Brand: Value Collection
Model #:

Product Specifications
Head Diameter (Inch) 3/4
Shank Diameter (Inch) 3/8
Pilot Material Carbon Steel

$19.42

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Made in USA - 11/16" Head Diam, 5/16" Shank Diam, Counterbore Pilot - A1 Tooling

Made in USA - 11/16" Head Diam, 5/16" Shank Diam, Counterbore Pilot


Item #: 78906443
Brand: Made in USA
Model #:

Product Specifications
Head Diameter (Inch) 11/16
Shank Diameter (Inch) 5/16
Finish/Coating Bright
Aircraft-Style No
Pilot Material Carbon Steel

$26.28

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Union Butterfield - 15/16" Head Diam, 5/16" Shank Diam, Counterbore Pilot - A1 Tooling

Union Butterfield - 15/16" Head Diam, 5/16" Shank Diam, Counterbore Pilot


Item #: 66386756
Brand: Union Butterfield
Model #: 3210151

Product Specifications
Head Diameter (Inch) 15/16
Shank Diameter (Inch) 5/16
Finish/Coating Bright
Aircraft-Style No
Pilot Material High Speed Steel

$121.14

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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 #: 44850741
Brand: Keo
Model #: 56214

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) 6.60
Overall Length (mm) 80.00

$60.89

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

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


Item #: 08272759
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) 0.3040
Fastener Size Compatibility (Wire) #8
Counterbore Material High Speed Steel
Finish/Coating Bright
Standard or Oversize Pilot Standard
Shank Diameter (Inch) 1/4
Number of Flutes 4
Aircraft-Style No
Pilot Diameter (Decimal Inch) 0.1950
Shank Type Straight
Overall Length (Inch) 5
Cutting Direction Forward

$43.87

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