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


Holemaking > Counterbores & Porting Tools (ET04)

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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$46.42

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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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$54.81

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$55.66

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$55.86

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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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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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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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15/64″ Diam, 15/64″ Shank, Diam, 3 Flutes, Straight Shank, Interchangeable Pilot Counterbore 3-13/16″ OAL, 3-1/16″ OAL Shank, Bright Finish, High Speed Steel


Item #: 08790156
Brand: Value Collection
Model #: GH8790156

Product Specifications

Counterbore Diameter (Inch) 15/64
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 3
Shank Type Straight
Shank Diameter (Inch) 15/64
Aircraft-Style No
Shank Length (Inch) 3-1/16
Overall Length (Inch) 3-13/16
Cutting Direction Right Hand

$61.93

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21/64″ Diam, 5/16″ Shank, Diam, 3 Flutes, Straight Shank, Interchangeable Pilot Counterbore 3-13/16″ OAL, 3-1/16″ OAL Shank, Bright Finish, High Speed Steel


Item #: 08790214
Brand: Value Collection
Model #: GH8790214

Product Specifications

Counterbore Diameter (Inch) 21/64
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 3
Shank Type Straight
Shank Diameter (Inch) 5/16
Aircraft-Style No
Shank Length (Inch) 3-1/16
Overall Length (Inch) 3-13/16
Cutting Direction Right Hand

$63.36

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17/32″ Diam, 1/4″ Shank, Diam, 4 Flutes, Straight Shank, Interchangeable Pilot Counterbore 2-13/16″ OAL, 5/8″ Flute Length, Bright Finish, High Speed Steel, Aircraft Style


Item #: 71010342
Brand: Made in USA
Model #: MIT-434-10

Product Specifications

Counterbore Diameter (Inch) 17/32
Pilot Shank Diameter Compatibility (Inch) 1/8
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) 2-13/16
Flute Length (Inch) 5/8
Cutting Direction Right Hand

$64.32

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Socket-Head Cap Screw Compatible, Solid Pilot Counterbore TiN, Oversize Pilot, 3/8″ Diam Straight Shank, 0.343″ Pilot Diam, 6.13″ OAL


Item #: 40177008
Brand: Alvord Polk
Model #: 33020

Product Specifications

Fastener Type Compatibility Socket-Head Cap Screw
Counterbore Diameter (Decimal Inch) 0.5070
Fastener Size Compatibility (Inch) 5/16
Fastener Size Compatibility (Decimal Inch) 0.3125
Finish/Coating TiN
Standard or Oversize Pilot Oversize
Shank Diameter (mm) 0.375 in
Overall Length 6.13 in
Aircraft-Style No
Pilot Diameter (Decimal Inch) 0.3430
Pilot Diameter (Inch) 0.343 in
Shank Type Straight
Overall Length (Decimal Inch) 6.13
Overall Length (Inch) 6-1/8
Overall Length (mm) 6.13 in
Cutting Direction Forward

$65.20

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25/64″ Diam, 3/8″ Shank, Diam, 3 Flutes, Straight Shank, Interchangeable Pilot Counterbore 4-1/16″ OAL, 3-1/16″ OAL Shank, Bright Finish, High Speed Steel


Item #: 08790255
Brand: Value Collection
Model #: GH8790255

Product Specifications

Counterbore Diameter (Inch) 25/64
Pilot Shank Diameter Compatibility (Inch) 5/32
Tool Material High Speed Steel
Finish/Coating Bright
Counterbore Material High Speed Steel
Coating Bright (Polished)
Number of Flutes 3
Shank Type Straight
Shank Diameter (Inch) 3/8
Aircraft-Style No
Shank Length (Inch) 3-1/16
Overall Length (Inch) 4-1/16
Cutting Direction Right Hand

$65.44

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1/4″ Diam, 15/64″ Shank, Diam, 4 Flutes, Straight Shank, Interchangeable Pilot Counterbore 4″ OAL, Bright Finish, High Speed Steel, Aircraft Style


Item #: 08830168
Brand: Value Collection
Model #: GH8830168

Product Specifications

Counterbore Diameter (Inch) 1/4
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) 15/64
Aircraft-Style Yes
Overall Length 4 in
Overall Length (Inch) 4
Cutting Direction Right Hand

$65.53

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17/32″ Diam, 3 Flutes, Morse Taper Shank, Interchangeable Pilot Counterbore 4-5/16″ OAL, Bright Finish, High Speed Steel


Item #: 08780348
Brand: Value Collection
Model #: GH8780348

Product Specifications

Counterbore Diameter (Inch) 17/32
Pilot Shank Diameter Compatibility (Inch) 3/16
Tool Material High Speed Steel
Finish/Coating Bright
Counterbore Material High Speed Steel
Coating Bright (Polished)
Number of Flutes 3
Shank Type Morse Taper
Aircraft-Style No
Shank Taper Designation 1MT
Overall Length (Inch) 4-5/16
Cutting Direction Right Hand

$66.36

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1/4″ Diam, 15/64″ Shank, Diam, 3 Flutes, Straight Shank, Interchangeable Pilot Counterbore 3-13/16″ OAL, 3-1/16″ OAL Shank, Bright Finish, High Speed Steel


Item #: 08812166
Brand: Made in USA
Model #: 10381

Product Specifications

Counterbore Diameter (Inch) 1/4
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 3
Shank Type Straight
Shank Diameter (Inch) 15/64
Shank Length (Inch) 3-1/16
Overall Length (Inch) 3-13/16
Cutting Direction Right Hand

$68.81

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3/8″ Diam, 5/16″ Shank, Diam, 3 Flutes, Straight Shank, Interchangeable Pilot Counterbore 4-1/16″ OAL, 3-1/16″ OAL Shank, Bright Finish, High Speed Steel


Item #: 08812240
Brand: Made in USA
Model #: 10385

Product Specifications

Counterbore Diameter (Inch) 3/8
Pilot Shank Diameter Compatibility (Inch) 5/32
Tool Material High Speed Steel
Finish/Coating Bright
Counterbore Material High Speed Steel
Coating Bright (Polished)
Number of Flutes 3
Shank Type Straight
Shank Diameter (Inch) 5/16
Shank Length (Inch) 3-1/16
Overall Length (Inch) 4-1/16
Cutting Direction Right Hand

$72.25

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9/16″ Diam, 1/2″ Shank, Diam, 4 Flutes, Straight Shank, Interchangeable Pilot Counterbore 4-1/4″ OAL, Bright Finish, High Speed Steel, Aircraft Style


Item #: 71011365
Brand: Made in USA
Model #: MIT-435-11

Product Specifications

Counterbore Diameter (Inch) 9/16
Pilot Shank Diameter Compatibility (Inch) 1/8
Tool Material High Speed Steel
Shank Type Straight
Shank Diameter (Inch) 1/2
Aircraft Style Yes
Overall Length (Inch) 4-1/4
Cutting Direction Right Hand
Number Of Flutes 4

$72.62

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11/32″ Diam, 5/16″ Shank, Diam, 3 Flutes, Straight Shank, Interchangeable Pilot Counterbore 3-13/16″ OAL, 3-1/16″ OAL Shank, Bright Finish, High Speed Steel


Item #: 08812224
Brand: Made in USA
Model #: 10384

Product Specifications

Counterbore Diameter (Inch) 11/32
Pilot Shank Diameter Compatibility (Inch) 3/32
Tool Material High Speed Steel
Shank Type Straight
Shank Diameter (Inch) 5/16
Overall Length (Inch) 3-13/16
Cutting Direction Right Hand
Number Of Flutes 3

$72.90

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