Holemaking Products - Counterbores & Porting Tools For Sale | A1 Tooling - (1669 Products)
Made in USA - 4 Flutes, 7/8" Diam, 5/16" Pilot Hole Diam, High Speed Steel Reverse Counterbore
Item #: 09937400
Brand: Made in USA
Model #: Features and Benefits
Product Specifications
Counterbore Diameter (Inch)
7/8
Pilot Hole Diameter (Inch)
5/16
Counterbore Material
High Speed Steel
Standard Pilot Model Number Compatibility
185-6
Oversize Pilot Model Number Compatibility
186-9
Number of Flutes
4
Overall Length (Inch)
5/8
Corner Radius (Inch)
1/32
Aircraft-Style
No
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Made in USA - 4 Flutes, 5/16" Diam, 3/32" Pilot Hole Diam, Solid Carbide Reverse Counterbore
Item #: 09937913
Brand: Made in USA
Model #: Features and Benefits
Product Specifications
Counterbore Diameter (Inch)
5/16
Pilot Hole Diameter (Inch)
3/32
Counterbore Material
Solid Carbide
Standard Pilot Model Number Compatibility
185-1
Oversize Pilot Model Number Compatibility
186-1
Number of Flutes
4
Overall Length (Inch)
1/2
Corner Radius (Inch)
1/64
Aircraft-Style
No
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Made in USA - 4 Flutes, 1-1/4" Diam, 3/8" Pilot Hole Diam, High Speed Steel Reverse Counterbore
Item #: 09937475
Brand: Made in USA
Model #: Features and Benefits
Product Specifications
Counterbore Diameter (Inch)
1-1/4
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
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Made in USA - 4 Flutes, 1/2" Diam, 5/32" Pilot Hole Diam, Solid Carbide Reverse Counterbore
Item #: 09938002
Brand: Made in USA
Model #: Features and Benefits
Product Specifications
Counterbore Diameter (Inch)
1/2
Pilot Hole Diameter (Inch)
5/32
Counterbore Material
Solid Carbide
Standard Pilot Model Number Compatibility
185-3
Oversize Pilot Model Number Compatibility
186-3
Number of Flutes
4
Overall Length (Inch)
1/2
Corner Radius (Inch)
1/64
Aircraft-Style
No
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Made in USA - 4 Flutes, 1" Diam, 3/8" Pilot Hole Diam, High Speed Steel Reverse Counterbore
Item #: 09937434
Brand: Made in USA
Model #: Features and Benefits
Product Specifications
Counterbore Diameter (Inch)
1
Pilot Hole Diameter (Inch)
3/8
Counterbore Material
High Speed Steel
Standard Pilot Model Number Compatibility
185-7
Oversize Pilot Model Number Compatibility
186-10
Number of Flutes
4
Overall Length (Inch)
5/8
Corner Radius (Inch)
1/32
Aircraft-Style
No
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Made in USA - 4 Flutes, 1/2" Diam, 1/4" Pilot Hole Diam, Solid Carbide Reverse Counterbore
Item #: 09938028
Brand: Made in USA
Model #: Features and Benefits
Product Specifications
Counterbore Diameter (Inch)
1/2
Pilot Hole Diameter (Inch)
1/4
Counterbore Material
Solid Carbide
Standard Pilot Model Number Compatibility
185-5
Oversize Pilot Model Number Compatibility
186-5
Number of Flutes
4
Overall Length (Inch)
1/2
Corner Radius (Inch)
1/64
Aircraft-Style
No
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Made in USA - 4 Flutes, 1-1/4" Diam, 1/2" Pilot Hole Diam, Carbide-Tipped Reverse Counterbore
Item #: 09938242
Brand: Made in USA
Model #: Features and Benefits
Product Specifications
Counterbore Diameter (Inch)
1-1/4
Pilot Hole Diameter (Inch)
1/2
Counterbore Material
Carbide-Tipped
Standard Pilot Model Number Compatibility
185-8
Oversize Pilot Model Number Compatibility
186-17
Number of Flutes
4
Overall Length (Inch)
7/8
Corner Radius (Inch)
1/64
Aircraft-Style
No
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Made in USA - 4 Flutes, 3/8" Diam, 3/16" Pilot Hole Diam, Solid Carbide Reverse Counterbore
Item #: 09937962
Brand: Made in USA
Model #: Features and Benefits
Product Specifications
Counterbore Diameter (Inch)
3/8
Pilot Hole Diameter (Inch)
3/16
Counterbore Material
Solid Carbide
Standard Pilot Model Number Compatibility
185-4
Oversize Pilot Model Number Compatibility
186-4
Number of Flutes
4
Overall Length (Inch)
1/2
Corner Radius (Inch)
1/64
Aircraft-Style
No
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Made in USA - 4 Flutes, 3/4" Diam, 5/16" Pilot Hole Diam, High Speed Steel Reverse Counterbore
Item #: 09937376
Brand: Made in USA
Model #: Features and Benefits
Product Specifications
Counterbore Diameter (Inch)
3/4
Pilot Hole Diameter (Inch)
5/16
Counterbore Material
High Speed Steel
Standard Pilot Model Number Compatibility
185-6
Oversize Pilot Model Number Compatibility
186-9
Number of Flutes
4
Overall Length (Inch)
5/8
Corner Radius (Inch)
1/32
Aircraft-Style
No
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Made in USA - 4 Flutes, 1-1/4" Diam, 3/8" Pilot Hole Diam, Carbide-Tipped Reverse Counterbore
Item #: 09938234
Brand: Made in USA
Model #: Features and Benefits
Product Specifications
Counterbore Diameter (Inch)
1-1/4
Pilot Hole Diameter (Inch)
3/8
Counterbore Material
Carbide-Tipped
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)
1/64
Aircraft-Style
No
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Made in USA - 4 Flutes, 7/16" Diam, 1/8" Pilot Hole Diam, Solid Carbide Reverse Counterbore
Item #: 09937970
Brand: Made in USA
Model #: Features and Benefits
Product Specifications
Counterbore Diameter (Inch)
7/16
Pilot Hole Diameter (Inch)
1/8
Counterbore Material
Solid Carbide
Standard Pilot Model Number Compatibility
185-2
Oversize Pilot Model Number Compatibility
186-2
Number of Flutes
4
Overall Length (Inch)
1/2
Corner Radius (Inch)
1/64
Aircraft-Style
No
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Made in USA - 4 Flutes, 7/16" Diam, 5/32" Pilot Hole Diam, Solid Carbide Reverse Counterbore
Item #: 09937988
Brand: Made in USA
Model #: Features and Benefits
Product Specifications
Counterbore Diameter (Inch)
7/16
Pilot Hole Diameter (Inch)
5/32
Counterbore Material
Solid Carbide
Standard Pilot Model Number Compatibility
185-3
Oversize Pilot Model Number Compatibility
186-3
Number of Flutes
4
Overall Length (Inch)
1/2
Corner Radius (Inch)
1/64
Aircraft-Style
No
2% Off All Online Orders
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Made in USA - 4 Flutes, 7/16" Diam, 1/8" Pilot Hole Diam, High Speed Steel Reverse Counterbore
Item #: 09937210
Brand: Made in USA
Model #: Features and Benefits
Product Specifications
Counterbore Diameter (Inch)
7/16
Pilot Hole Diameter (Inch)
1/8
Counterbore Material
High Speed Steel
Standard Pilot Model Number Compatibility
185-2
Oversize Pilot Model Number Compatibility
186-2
Number of Flutes
4
Overall Length (Inch)
1/2
Corner Radius (Inch)
1/32
Aircraft-Style
No
2% Off All Online Orders
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Made in USA - 4 Flutes, 7/16" Diam, 3/16" Pilot Hole Diam, Solid Carbide Reverse Counterbore
Item #: 09937996
Brand: Made in USA
Model #: Features and Benefits
Product Specifications
Counterbore Diameter (Inch)
7/16
Pilot Hole Diameter (Inch)
3/16
Counterbore Material
Solid Carbide
Standard Pilot Model Number Compatibility
185-4
Oversize Pilot Model Number Compatibility
186-4
Number of Flutes
4
Overall Length (Inch)
1/2
Corner Radius (Inch)
1/64
Aircraft-Style
No
2% Off All Online Orders
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Made in USA - 4 Flutes, 1/2" Diam, 1/4" Pilot Hole Diam, High Speed Steel Reverse Counterbore
Item #: 09937269
Brand: Made in USA
Model #: Features and Benefits
Product Specifications
Counterbore Diameter (Inch)
1/2
Pilot Hole Diameter (Inch)
1/4
Counterbore Material
High Speed Steel
Standard Pilot Model Number Compatibility
185-5
Oversize Pilot Model Number Compatibility
186-5
Number of Flutes
4
Overall Length (Inch)
1/2
Corner Radius (Inch)
1/32
Aircraft-Style
No
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Made in USA - 4 Flutes, 11/16" Diam, 3/16" Pilot Hole Diam, Solid Carbide Reverse Counterbore
Item #: 09938093
Brand: Made in USA
Model #: Features and Benefits
Product Specifications
Counterbore Diameter (Inch)
11/16
Pilot Hole Diameter (Inch)
3/16
Counterbore Material
Solid Carbide
Standard Pilot Model Number Compatibility
185-4
Oversize Pilot Model Number Compatibility
186-7
Number of Flutes
4
Overall Length (Inch)
5/8
Corner Radius (Inch)
1/64
Aircraft-Style
No
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Made in USA - 4 Flutes, 2" Diam, 3/4" Pilot Hole Diam, Carbide-Tipped Reverse Counterbore
Item #: 09938309
Brand: Made in USA
Model #: Features and Benefits
Product Specifications
Counterbore Diameter (Inch)
2
Pilot Hole Diameter (Inch)
3/4
Counterbore Material
Carbide-Tipped
Standard Pilot Model Number Compatibility
185-10
Oversize Pilot Model Number Compatibility
186-22; 186-23; 186-24
Number of Flutes
4
Overall Length (Inch)
1
Corner Radius (Inch)
1/64
Aircraft-Style
No
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Made in USA - 4 Flutes, 3/8" Diam, 1/8" Pilot Hole Diam, High Speed Steel Reverse Counterbore
Item #: 09937186
Brand: Made in USA
Model #: Features and Benefits
Product Specifications
Counterbore Diameter (Inch)
3/8
Pilot Hole Diameter (Inch)
1/8
Counterbore Material
High Speed Steel
Standard Pilot Model Number Compatibility
185-2
Oversize Pilot Model Number Compatibility
186-2
Number of Flutes
4
Overall Length (Inch)
1/2
Corner Radius (Inch)
1/32
Aircraft-Style
No
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Made in USA - 4 Flutes, 5/16" Diam, 5/32" Pilot Hole Diam, High Speed Steel Reverse Counterbore
Item #: 09937178
Brand: Made in USA
Model #: Features and Benefits
Product Specifications
Counterbore Diameter (Inch)
5/16
Pilot Hole Diameter (Inch)
5/32
Counterbore Material
High Speed Steel
Standard Pilot Model Number Compatibility
185-3
Oversize Pilot Model Number Compatibility
186-3
Number of Flutes
4
Overall Length (Inch)
1/2
Corner Radius (Inch)
1/32
Aircraft-Style
No
2% Off All Online Orders
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Made in USA - 4 Flutes, 1-1/2" Diam, 5/8" Pilot Hole Diam, Carbide-Tipped Reverse Counterbore
Item #: 09938267
Brand: Made in USA
Model #: Features and Benefits
Product Specifications
Counterbore Diameter (Inch)
1-1/2
Pilot Hole Diameter (Inch)
5/8
Counterbore Material
Carbide-Tipped
Standard Pilot Model Number Compatibility
185-9
Oversize Pilot Model Number Compatibility
186-20; 186-21
Number of Flutes
4
Overall Length (Inch)
7/8
Corner Radius (Inch)
1/64
Aircraft-Style
No
2% Off All Online Orders
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