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Holemaking > Counterbores & Porting Tools (ET04) - (2029 Products)


3/8″ Diam, 1/4″ Shank, Diam, 4 Flutes, Straight Shank, Interchangeable Pilot Counterbore 2-3/8″ OAL, Bright Finish, High Speed Steel, Aircraft Style


Item #: 08840241
Brand: Value Collection
Model #: GH8840241

Product Specifications

Counterbore Diameter (Inch) 3/8
Pilot Shank Diameter Compatibility (Inch) 3/32
Tool Material High Speed Steel
Finish/Coating Bright
Counterbore Material High Speed Steel
Coating Bright (Polished)
Number of Flutes 4
Shank Type Straight
Shank Diameter (Inch) 1/4
Aircraft-Style Yes
Overall Length (Inch) 2-3/8
Cutting Direction Right Hand

$58.48

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Socket-Head Cap Screw Compatible, Solid Pilot Counterbore TiN, Oversize Pilot, 5/16″ Diam Straight Shank, 0.281″ Pilot Diam, 5.63″ OAL


Item #: 40176976
Brand: Alvord Polk
Model #: 33017

Product Specifications

Fastener Type Compatibility Socket-Head Cap Screw
Counterbore Diameter (Decimal Inch) 0.4140
Fastener Size Compatibility (Inch) 1/4
Fastener Size Compatibility (Decimal Inch) 0.2500
Finish/Coating TiN
Standard or Oversize Pilot Oversize
Shank Diameter (mm) 0.3125 in
Overall Length 5.63 in
Aircraft-Style No
Pilot Diameter (Decimal Inch) 0.2810
Pilot Diameter (Inch) 0.281 in
Shank Type Straight
Overall Length (Decimal Inch) 5.63
Overall Length (Inch) 5-5/8
Overall Length (mm) 5.63 in
Cutting Direction Forward

$57.31

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13/32″ Diam, 3 Flutes, Morse Taper Shank, Interchangeable Pilot Counterbore 4-1/16″ OAL, Bright Finish, High Speed Steel


Item #: 08780264
Brand: Value Collection
Model #: GH8780264

Product Specifications

Counterbore Diameter (Inch) 13/32
Pilot Shank Diameter Compatibility (Inch) 5/32
Tool Material High Speed Steel
Shank Type Morse Taper
Aircraft Style No
Shank Taper Designation 1MT
Overall Length (Inch) 4-1/16
Cutting Direction Right Hand
Number Of Flutes 3

$56.76

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$55.86

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$55.66

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$54.81

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Brand: Glastonbury Gage & Southern Gage - GSG / Part #: GSG-CR-2.3517MC


Item #: 94419116
Brand: Glastonbury Gage & Southern Gage - GSG
Model #: GSG-CR-2.3517MC

Product Specifications

Material Solid Carbide
Tolerance (Decimal Inch) +0.00002/-0.00002
Blank Number Wire Size #7
Inner Diameter (Decimal Inch) 2.3517
Calibrated Yes
Traceability Certification Included NIST
Standards B47.1 Gage Standards; ASME B89.1.6
Go/No Go Master

$1,563.82

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$46.42

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Fillister-Head Screw Compatible, High Speed Steel Solid Pilot Counterbore Bright (Polished), Oversize Pilot, 1/4″ Diam Straight Shank, 0.195″ Pilot Diam, 5″ OAL


Item #: 43983584
Brand: Alvord Polk
Model #: 03011

Product Specifications

Fastener Type Compatibility Fillister-Head Screw
Counterbore Diameter (Decimal Inch) 0.3040
Fastener Size Compatibility (Inch) 8-32
Counterbore Material High Speed Steel
Finish/Coating Bright (Polished); Bright
Standard or Oversize Pilot Oversize
Shank Diameter (mm) 0.25 in
Overall Length 5.0 in; 5 in
Aircraft-Style No
Pilot Diameter (Decimal Inch) 0.1950
Pilot Diameter (Inch) 0.195 in
Shank Type Straight
Overall Length (Decimal Inch) 5.00
Overall Length (Inch) 5
Overall Length (mm) 5.0 in; 5 in
Cutting Direction Forward

$37.72

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Brand: Glastonbury Gage & Southern Gage - GSG / Part #: GSG-CR-2.1844MC


Item #: 98461429
Brand: Glastonbury Gage & Southern Gage - GSG
Model #: GSG-CR-2.1844MC

Product Specifications

Material Solid Carbide
Tolerance (Decimal Inch) +0.00002/-0.00002
Blank Number Wire Size #7
Inner Diameter (Decimal Inch) 2.1844
Calibrated Yes
Traceability Certification Included NIST
Standards B47.1 Gage Standards; ASME B89.1.6
Go/No Go Master

$1,438.97

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$35.34

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High Speed Steel Solid Pilot Counterbore Bright (Polished), 0.4925″ Diam Straight Shank, 0.331″ Pilot Diam, 100mm OAL


Item #: 65671927
Brand: DORMER
Model #: 5973154

Product Specifications

Counterbore Diameter (mm) 15.00
Counterbore Diameter (Decimal Inch) 0.5910
Counterbore Material High Speed Steel
Finish/Coating Bright (Polished); Bright
Shank Diameter (mm) 12.50; 0.4925 in; 12.5 mm
Number of Flutes 3
Overall Length 100.0 mm; 3.94 in
Aircraft-Style No
Pilot Diameter (Decimal Inch) 0.3310
Pilot Diameter (Inch) 0.331 in; 8.4 mm
Pilot Diameter (mm) 8.40
Shank Type Straight Shank
Overall Length (Decimal Inch) 3.94
Overall Length (mm) 100.00; 100.0 mm; 3.94 in
Cutting Direction Right Hand
Tip Included Angle 180
Material Application2 Thermosetting Plastics; Aluminum; Brass; Carbon Steel; Free Machining Stainless Steel; Alloy Tool Steel; Steel; Aluminum Alloys; Copper Alloys; Titanium Alloys; Stainless Steel; Cast Iron; Structural Steel; Titanium; Nickel; Magnesium; Copper; Nickel Alloys; Plastics; Hardened Steel

$70.92

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High Speed Steel Solid Pilot Counterbore Bright (Polished), 0.4925″ Diam Straight Shank, 0.2679″ Pilot Diam, 100mm OAL


Item #: 65671935
Brand: DORMER
Model #: 5973149

Product Specifications

Counterbore Diameter (mm) 15.00
Counterbore Diameter (Decimal Inch) 0.5910
Counterbore Material High Speed Steel
Finish/Coating Bright (Polished); Bright
Shank Diameter (mm) 12.50; 0.4925 in; 12.5 mm
Number of Flutes 3
Overall Length 100.0 mm; 3.94 in
Aircraft-Style No
Pilot Diameter (Decimal Inch) 0.2679
Pilot Diameter (Inch) 6.8 mm; 0.2679 in
Pilot Diameter (mm) 6.80
Shank Type Straight Shank
Overall Length (Decimal Inch) 3.94
Overall Length (mm) 100.00; 100.0 mm; 3.94 in
Cutting Direction Right Hand
Tip Included Angle 180
Material Application2 Thermosetting Plastics; Aluminum; Brass; Carbon Steel; Free Machining Stainless Steel; Alloy Tool Steel; Steel; Aluminum Alloys; Copper Alloys; Titanium Alloys; Stainless Steel; Cast Iron; Structural Steel; Titanium; Nickel; Magnesium; Copper; Nickel Alloys; Plastics; Hardened Steel

$68.88

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Brand: Glastonbury Gage & Southern Gage - GSG / Part #: GSG-CR-2.0769MC


Item #: 89953202
Brand: Glastonbury Gage & Southern Gage - GSG
Model #: GSG-CR-2.0769MC

Product Specifications

Material Solid Carbide
Tolerance (Decimal Inch) +0.00002/-0.00002
Blank Number Wire Size #7
Inner Diameter (Decimal Inch) 2.0769
Calibrated Yes
Traceability Certification Included NIST
Standards B47.1 Gage Standards; ASME B89.1.6
Go/No Go Master

$1,438.97

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$51.88

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Solid Pilot Counterbores; Fastener Type Compatibility: Cap Screw; Counterbore Diameter (Decimal Inch): 0.7710; Fastener Size Compatibility (Inch): 1/2; Counterbore Material: High Speed Steel; Finish/Coating: Uncoated; Standard or Oversize Pilot: Oversize;


Item #: 07963002
Brand: Titan USA
Model #: TR97493

Product Specifications

Fastener Type Compatibility Cap Screw
Counterbore Diameter (Decimal Inch) 0.7710
Fastener Size Compatibility (Inch) 1/2
Counterbore Material High Speed Steel
Finish/Coating Uncoated
Standard or Oversize Pilot Oversize
Shank Diameter (Inch) 1/2
Number of Flutes 4
Pilot Diameter (Inch) 33/64
Overall Length (Inch) 7-1/2

$67.27

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1/4″ Cut Diam, 7/8″ Flute Length, Solid Carbide Solid Counterbore Uncoated, 4 Flutes, 1/4″ Shank Diam, 2-1/2 OAL


Item #: 63121974
Brand: Harvey Tool
Model #: 23416

Product Specifications

Cutter Diameter (Decimal Inch) 0.2500
Shank Diameter (Inch) 1/4
Material Solid Carbide
Number of Flutes 4
Finish/Coating Uncoated

$40.79

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Solid Counterbores; Cutter Diameter (Decimal Inch): 0.3125; Shank Diameter (Inch): 5/16; Flute Length (Decimal Inch): 1.0000; Overall Length (Inch): 2-1/2; Material: Solid Carbide; Number of Flutes: 4


Item #: 16174328
Brand: Harvey Tool
Model #: 23420-C6

Product Specifications

Cutter Diameter (Decimal Inch) 0.3125
Shank Diameter (Inch) 5/16
Flute Length (Decimal Inch) 1.0000
Overall Length (Inch) 2-1/2
Material Solid Carbide
Number of Flutes 4

$62.77

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$48.31

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High Speed Steel Solid Pilot Counterbore Bright (Polished), 0.197″ Diam Straight Shank, 0.1773″ Pilot Diam, 71mm OAL


Item #: 65671836
Brand: DORMER
Model #: 5973224

Product Specifications

Counterbore Diameter (mm) 8.00
Counterbore Diameter (Decimal Inch) 0.3152
Counterbore Material High Speed Steel
Finish/Coating Bright (Polished); Bright
Shank Diameter (mm) 5.00; 0.197 in; 5.0 mm
Number of Flutes 3
Overall Length 71.0 mm; 2.8 in
Aircraft-Style No
Pilot Diameter (Decimal Inch) 0.1773
Pilot Diameter (Inch) 0.1773 in; 4.5 mm
Pilot Diameter (mm) 4.50
Shank Type Straight Shank
Overall Length (Decimal Inch) 2.80
Overall Length (mm) 71.0 mm; 71.00; 2.8 in
Cutting Direction Right Hand
Tip Included Angle 180
Material Application2 Thermosetting Plastics; Aluminum; Brass; Carbon Steel; Free Machining Stainless Steel; Alloy Tool Steel; Steel; Aluminum Alloys; Copper Alloys; Titanium Alloys; Stainless Steel; Cast Iron; Structural Steel; Titanium; Nickel; Magnesium; Copper; Nickel Alloys; Plastics; Hardened Steel

$38.42

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