We ship from multiple warehouses throughout the USA
to get you what you need as fast as possible!
Millions of items in stock!
Fast online checkout - No account required
Cart 0

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


Scientific Cutting Tools - 3/4-16" Port, 1.24" Spotface Diam, 1/2" Tube Outside Diam, Reamer Pilot, Carbide Tipped Porting Tool


Item #: 98006786
Brand: Scientific Cutting Tools
Model #: MS33649-8RL

Features and Benefits

Carbide-tipped cuts faster than high speed steel. It is commonly used on ferrous and nonferrous materials including cast iron, steel and steel alloys.
Product Specifications
Port Standard Designation AS 5202; MS 33649
Pilot Type Reamer
Port Thread Size (Decimal Inch) 0.7500-16
Port Thread Size (Inch) 3/4-16
Tool Material Carbide-Tipped
Tube Dash Number 8.000
Tube Outside Diameter Compatibility (Decimal Inch) 0.500
Tube Outside Diameter Compatibility (Inch) 1/2
Minimum Pilot Diameter (Decimal Inch) 0.6930
Maximum Pilot Diameter (Decimal Inch) 0.7715
Spotface Diameter (Decimal Inch) 1.2400
Pilot Length (Decimal Inch) 0.7520
Identification Groove No
Workpiece Compatibility Tubes
Finish/Coating Bright
Head Length (Decimal Inch) 1.7200
Overall Length (Decimal Inch) 3.8400
Shank Diameter (Decimal Inch) 0.7500
Shank Length (Decimal Inch) 2.1200
Seal Angle 30
Thread Type UNJF
Flute Type Straight
Number of Flutes 4

$220.88

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Made in USA - 5/16-24" Port, 0.692" Spotface Diam, 1/8" Tube Outside Diam, Reamer Pilot, Straight Shank, High Speed Steel Porting Tool


Item #: 00389759
Brand: Made in USA
Model #:

Features and Benefits

High speed steel (HSS) provides good wear resistance and can be used in general purpose applications for both ferrous and nonferrous materials.
Product Specifications
Port Standard Designation MS 16142
Pilot Type Reamer
Port Thread Size (Inch) 5/16-24
Tool Material High Speed Steel
Tube Outside Diameter Compatibility (Inch) 1/8
Minimum Pilot Diameter (Decimal Inch) 0.2710
Spotface Diameter (Decimal Inch) 0.6920
ShankType Straight
Identification Groove No
Workpiece Compatibility Tubes
Finish/Coating Bright
Overall Length (Inch) 3-5/16
Shank Diameter (Decimal Inch) 0.5000
Seal Angle 12
Thread Type Straight
Number of Flutes 3
Material Application Ferrous Metals; Non-Ferrous Metals

$246.56

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Made in USA - 9/16-18" Port, 0.989" Spotface Diam, 3/8" Tube Outside Diam, Plain Pilot, Straight Shank, High Speed Steel Porting Tool


Item #: 00389668
Brand: Made in USA
Model #:

Features and Benefits

High speed steel (HSS) provides good wear resistance and can be used in general purpose applications for both ferrous and nonferrous materials.
Product Specifications
Port Standard Designation MS 16142
Pilot Type Plain
Port Thread Size (Inch) 9/16-18
Tool Material High Speed Steel
Tube Outside Diameter Compatibility (Inch) 3/8
Minimum Pilot Diameter (Decimal Inch) 0.5050
Spotface Diameter (Decimal Inch) 0.9890
ShankType Straight
Identification Groove No
Workpiece Compatibility Tubes
Finish/Coating Bright
Overall Length (Inch) 3-23/32
Shank Diameter (Inch) 1/2
Shank Diameter (Decimal Inch) 0.5000
Seal Angle 12
Thread Type Straight
Number of Flutes 4
Material Application Ferrous Metals; Non-Ferrous Metals

$314.51

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Scientific Cutting Tools - 5/16-24" Port, 0.682" Spotface Diam, 1/8" Tube Outside Diam, Reamer Pilot, Carbide Tipped Porting Tool


Item #: 44065100
Brand: Scientific Cutting Tools
Model #: MS16142-2RC

Features and Benefits

Carbide-tipped cuts faster than high speed steel. It is commonly used on ferrous and nonferrous materials including cast iron, steel and steel alloys.
Product Specifications
Port Standard Designation MS 16142; SAE J1926; SAE J514
Pilot Type Reamer
Port Thread Size (Decimal Inch) 0.3120-24
Port Thread Size (Inch) 5/16-24
Tool Material Carbide-Tipped
Tube Dash Number 2.000
Tube Outside Diameter Compatibility (Decimal Inch) 0.125
Tube Outside Diameter Compatibility (Inch) 1/8
Minimum Pilot Diameter (Decimal Inch) 0.2710
Maximum Pilot Diameter (Decimal Inch) 0.3605
Spotface Diameter (Decimal Inch) 0.6820
Pilot Length (Decimal Inch) 0.3970
Identification Groove No
Workpiece Compatibility Tubes
Finish/Coating TiN
Head Length (Decimal Inch) 1.2500
Overall Length (Decimal Inch) 3.0000
Shank Diameter (Decimal Inch) 0.5000
Shank Length (Decimal Inch) 1.7500
Seal Angle 12
Thread Type UNF
Flute Type Straight
Number of Flutes 3

$173.05

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Made in USA - 11/32" Diam, 5/16" Shank, Diam, 4 Flutes, Straight Shank, Interchangeable Pilot Counterbore


Item #: 71011225
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) 11/32
Pilot Shank Diameter Compatibility (Inch) 3/32
Finish/Coating Bright
Counterbore Material High Speed Steel
Number of Flutes 4
Shank Type Straight
Shank Diameter (Inch) 5/16
Aircraft-Style Yes
Overall Length (Inch) 4
Cutting Direction Forward

$54.48

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Scientific Cutting Tools - 0.8750-14" Port, 1.05" Spotface Diam, 5/8" Tube Outside Diam, Reamer Pilot, Carbide Tipped Porting Tool


Item #: 44065043
Brand: Scientific Cutting Tools
Model #: MS21921-10A

Features and Benefits

Carbide-tipped cuts faster than high speed steel. It is commonly used on ferrous and nonferrous materials including cast iron, steel and steel alloys.
Product Specifications
Port Standard Designation MS 21921
Pilot Type Reamer
Port Thread Size (Decimal Inch) 0.8750-14
Tool Material Carbide-Tipped
Tube Dash Number 10.000
Tube Outside Diameter Compatibility (Decimal Inch) 0.625
Minimum Pilot Diameter (Decimal Inch) 0.6920
Maximum Pilot Diameter (Decimal Inch) 1.0500
Spotface Diameter (Decimal Inch) 1.0500
Pilot Length (Decimal Inch) 0.3330
Identification Groove No
Workpiece Compatibility Tubes
Finish/Coating AlTiN+
Head Length (Decimal Inch) 1.7500
Overall Length (Decimal Inch) 3.7500
Shank Diameter (Decimal Inch) 0.7500
Shank Length (Decimal Inch) 2.0000
Thread Type UNJF
Flute Type Straight
Number of Flutes 4

$266.66

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Made in USA - 15/32" Diam, 7/16" Shank, Diam, 4 Flutes, Straight Shank, Interchangeable Pilot Counterbore


Item #: 71011308
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) 15/32
Pilot Shank Diameter Compatibility (Inch) 1/8
Finish/Coating Bright
Counterbore Material High Speed Steel
Number of Flutes 4
Shank Type Straight
Shank Diameter (Inch) 7/16
Aircraft-Style Yes
Overall Length (Inch) 4-1/4
Cutting Direction Forward

$65.08

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Value Collection - 2" Diam, 1-1/2" Shank, Diam, 5 Flutes, Straight Shank, Interchangeable Pilot Counterbore


Item #: 08817009
Brand: Value Collection
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 (Inch) 2
Pilot Shank Diameter Compatibility (Inch) 1/2
Finish/Coating Bright
Counterbore Material Cobalt
Number of Flutes 5
Shank Type Straight
Shank Diameter (Inch) 1-1/2
Aircraft-Style No
Shank Length (Inch) 5-7/8
Overall Length (Inch) 8-3/8
Cutting Direction Forward

$621.13

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Value Collection - 5/8" Diam, 1/2" Shank, Diam, 4 Flutes, Straight Shank, Interchangeable Pilot Counterbore


Item #: 08830408
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
Counterbore Diameter (Inch) 5/8
Pilot Shank Diameter Compatibility (Inch) 1/8
Finish/Coating Bright
Counterbore Material High Speed Steel
Number of Flutes 4
Shank Type Straight
Shank Diameter (Inch) 1/2
Aircraft-Style Yes
Overall Length (Inch) 4-1/4
Cutting Direction Forward

$91.50

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Scientific Cutting Tools - 3/4-16" Port, 1.24" Spotface Diam, 1/2" Tube Outside Diam, Reamer Pilot, Carbide Tipped Porting Tool


Item #: 44039618
Brand: Scientific Cutting Tools
Model #: AND10050-8RLA

Features and Benefits

Carbide-tipped cuts faster than high speed steel. It is commonly used on ferrous and nonferrous materials including cast iron, steel and steel alloys.
Product Specifications
Port Standard Designation AND 10050
Pilot Type Reamer
Port Thread Size (Decimal Inch) 0.7500-16
Port Thread Size (Inch) 3/4-16
Tool Material Carbide-Tipped
Tube Dash Number 8.000
Tube Outside Diameter Compatibility (Decimal Inch) 0.500
Tube Outside Diameter Compatibility (Inch) 1/2
Minimum Pilot Diameter (Decimal Inch) 0.6860
Maximum Pilot Diameter (Decimal Inch) 0.7715
Spotface Diameter (Decimal Inch) 1.2400
Pilot Length (Decimal Inch) 0.6360
Identification Groove No
Workpiece Compatibility Tubes
Finish/Coating AlTiN+
Head Length (Decimal Inch) 1.5800
Overall Length (Decimal Inch) 3.7000
Shank Diameter (Decimal Inch) 0.7500
Shank Length (Decimal Inch) 2.1200
Seal Angle 30
Thread Type UNF
Flute Type Straight
Number of Flutes 4

$235.91

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Scientific Cutting Tools - M18x1.5mm Port, 1.0276" Spotface Diam, Reamer Pilot, Carbide Tipped Porting Tool


Item #: 06606818
Brand: Scientific Cutting Tools
Model #: 6149-M18X1.5

Features and Benefits

Carbide-tipped cuts faster than high speed steel. It is commonly used on ferrous and nonferrous materials including cast iron, steel and steel alloys.
Product Specifications
Port Standard Designation ISO 6149-1; SAE J2244-1
Pilot Type Reamer
Port Thread Size (mm) M18x1.5
Tool Material Carbide-Tipped
Minimum Pilot Diameter (mm) 16.500
Minimum Pilot Diameter (Decimal Inch) 0.6496
Maximum Pilot Diameter (Decimal Inch) 0.7815
Spotface Diameter (Decimal Inch) 1.0276
Spotface Diameter (mm) 26.10
Pilot Length (Decimal Inch) 0.5709
Identification Groove No
Finish/Coating Bright
Head Length (Decimal Inch) 1.5800
Overall Length (Decimal Inch) 3.7000
Shank Diameter (Decimal Inch) 0.7500
Shank Length (Decimal Inch) 2.1200
Seal Angle 15
Thread Type Metric Fine
Flute Type Straight
Number of Flutes 4

$257.31

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Scientific Cutting Tools - 1-5/16 - 12" Port, 1.965" Spotface Diam, 1" Tube Outside Diam, Plain Pilot, Carbide Tipped Porting Tool


Item #: 44039782
Brand: Scientific Cutting Tools
Model #: AND10050-16SA

Features and Benefits

Carbide-tipped cuts faster than high speed steel. It is commonly used on ferrous and nonferrous materials including cast iron, steel and steel alloys.
Product Specifications
Port Standard Designation AND 10050
Pilot Type Plain
Port Thread Size (Decimal Inch) 1.3120-12
Port Thread Size (Inch) 1-5/16 - 12
Tool Material Carbide-Tipped
Tube Dash Number 16.000
Tube Outside Diameter Compatibility (Decimal Inch) 1.000
Tube Outside Diameter Compatibility (Inch) 1
Minimum Pilot Diameter (Decimal Inch) 1.2250
Maximum Pilot Diameter (Decimal Inch) 1.3385
Spotface Diameter (Decimal Inch) 1.9650
Pilot Length (Decimal Inch) 0.5770
Identification Groove No
Workpiece Compatibility Tubes
Finish/Coating AlTiN+
Head Length (Decimal Inch) 1.8000
Overall Length (Decimal Inch) 4.0500
Shank Diameter (Decimal Inch) 1.0000
Shank Length (Decimal Inch) 2.2500
Seal Angle 30
Thread Type UN
Flute Type Straight
Number of Flutes 4

$269.83

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Value Collection - 3/16" Diam, 15/64" Shank, Diam, 3 Flutes, Straight Shank, Interchangeable Pilot Counterbore


Item #: 08815128
Brand: Value Collection
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 (Inch) 3/16
Pilot Shank Diameter Compatibility (Inch) 3/32
Finish/Coating Bright
Counterbore Material Cobalt
Number of Flutes 3
Shank Type Straight
Shank Diameter (Inch) 15/64
Aircraft-Style No
Shank Length (Inch) 2-3/8
Overall Length (Inch) 3
Cutting Direction Forward

$82.95

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Value Collection - 13/16" Diam, 1/4" Shank, Diam, 4 Flutes, Straight Shank, Interchangeable Pilot Counterbore


Item #: 08840522
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
Counterbore Diameter (Inch) 13/16
Pilot Shank Diameter Compatibility (Inch) 3/16
Finish/Coating Bright
Counterbore Material High Speed Steel
Number of Flutes 4
Shank Type Straight
Shank Diameter (Inch) 1/4
Aircraft-Style Yes
Overall Length (Inch) 3-1/8
Cutting Direction Forward

$88.10

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Made in USA - 4 Flutes, 9/16" Diam, 3/16" Pilot Hole Diam, High Speed Steel Reverse Counterbore


Item #: 09937285
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) 9/16
Pilot Hole Diameter (Inch) 3/16
Counterbore Material High Speed Steel
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) 1/32
Aircraft-Style No

$36.54

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Made in USA - 15/16" Diam, 3 Flutes, Morse Taper Shank, Interchangeable Pilot Counterbore


Item #: 78810603
Brand: Made in USA
Model #:

Features and Benefits

Carbide tips cuts faster than high speed steel. It is commonly used on ferrous and nonferrous materials including cast iron, steel and steel alloys.
Product Specifications
Counterbore Diameter (Inch) 15/16
Pilot Shank Diameter Compatibility (Inch) 1/4
Pilot Shank Diameter Compatibility (Decimal Inch) 0.2500
Finish/Coating Bright
Counterbore Material Carbide-Tipped
Number of Flutes 3
Shank Type Morse Taper
Aircraft-Style No
Shank Taper Designation 3MT
Overall Length (Inch) 6-1/8
Cutting Direction Forward
Material Application Cast Iron; Composites; Non-Ferrous Metals; Non-Metals; Plastics

$304.55

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Scientific Cutting Tools - 1-1/16 - 12" Port, 1.665" Spotface Diam, 3/4" Tube Outside Diam, Reamer Pilot, Carbide Tipped Porting Tool


Item #: 43771856
Brand: Scientific Cutting Tools
Model #: MS33649-12RA

Features and Benefits

Carbide-tipped cuts faster than high speed steel. It is commonly used on ferrous and nonferrous materials including cast iron, steel and steel alloys.
Product Specifications
Port Standard Designation AS 5202; MS 33649
Pilot Type Reamer
Port Thread Size (Decimal Inch) 1.0620-12
Port Thread Size (Inch) 1-1/16 - 12
Tool Material Carbide-Tipped
Tube Dash Number 12.000
Tube Outside Diameter Compatibility (Decimal Inch) 0.750
Tube Outside Diameter Compatibility (Inch) 3/4
Minimum Pilot Diameter (Decimal Inch) 0.9850
Maximum Pilot Diameter (Decimal Inch) 1.0885
Spotface Diameter (Decimal Inch) 1.6650
Pilot Length (Decimal Inch) 0.9510
Identification Groove No
Workpiece Compatibility Tubes
Finish/Coating AlTiN+
Head Length (Decimal Inch) 2.0000
Overall Length (Decimal Inch) 4.1200
Shank Diameter (Decimal Inch) 0.7500
Shank Length (Decimal Inch) 2.1200
Seal Angle 30
Thread Type UNJ
Flute Type Straight
Number of Flutes 4

$241.10

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Scientific Cutting Tools - 9/16-18" Port, 1.012" Spotface Diam, 3/8" Tube Outside Diam, Reamer Pilot, Carbide Tipped Porting Tool


Item #: 44075844
Brand: Scientific Cutting Tools
Model #: MS33649-6RL

Features and Benefits

Carbide-tipped cuts faster than high speed steel. It is commonly used on ferrous and nonferrous materials including cast iron, steel and steel alloys.
Product Specifications
Port Standard Designation AS 5202; MS 33649
Pilot Type Reamer
Port Thread Size (Decimal Inch) 0.5620-18
Port Thread Size (Inch) 9/16-18
Tool Material Carbide-Tipped
Tube Dash Number 6.000
Tube Outside Diameter Compatibility (Decimal Inch) 0.375
Tube Outside Diameter Compatibility (Inch) 3/8
Minimum Pilot Diameter (Decimal Inch) 0.5130
Maximum Pilot Diameter (Decimal Inch) 0.5825
Spotface Diameter (Decimal Inch) 1.0120
Pilot Length (Decimal Inch) 0.6380
Identification Groove No
Workpiece Compatibility Tubes
Finish/Coating Bright
Head Length (Decimal Inch) 1.5000
Overall Length (Decimal Inch) 3.3800
Shank Diameter (Decimal Inch) 0.5000
Shank Length (Decimal Inch) 1.8800
Seal Angle 30
Thread Type UNJF
Flute Type Straight
Number of Flutes 4

$195.02

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Scientific Cutting Tools - M10x1.00mm Port, 0.7913" Spotface Diam, Reamer Pilot, Carbide Tipped Porting Tool


Item #: 44037471
Brand: Scientific Cutting Tools
Model #: 6149-M10X1-IDA

Features and Benefits

Carbide-tipped cuts faster than high speed steel. It is commonly used on ferrous and nonferrous materials including cast iron, steel and steel alloys.
Product Specifications
Port Standard Designation ISO 6149-1; SAE J2244-1
Pilot Type Reamer
Port Thread Size (mm) M10x1.00
Tool Material Carbide-Tipped
Minimum Pilot Diameter (mm) 9.000
Minimum Pilot Diameter (Decimal Inch) 0.3543
Maximum Pilot Diameter (Decimal Inch) 0.4390
Spotface Diameter (Decimal Inch) 0.7913
Spotface Diameter (mm) 20.10
Pilot Length (Decimal Inch) 0.3858
Identification Groove Yes
Finish/Coating AlTiN+
Head Length (Decimal Inch) 1.2500
Overall Length (Decimal Inch) 3.0000
Shank Diameter (Decimal Inch) 0.5000
Shank Length (Decimal Inch) 1.7500
Seal Angle 12
Thread Type Metric Fine
Flute Type Straight
Number of Flutes 3

$186.41

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Scientific Cutting Tools - 3/4-16" Port, 1.24" Spotface Diam, 1/2" Tube Outside Diam, Reamer Pilot, Carbide Tipped Porting Tool


Item #: 01241363
Brand: Scientific Cutting Tools
Model #: AND10050-8RL

Features and Benefits

Carbide-tipped cuts faster than high speed steel. It is commonly used on ferrous and nonferrous materials including cast iron, steel and steel alloys.
Product Specifications
Port Standard Designation AND 10050
Pilot Type Reamer
Port Thread Size (Decimal Inch) 0.7500-16
Port Thread Size (Inch) 3/4-16
Tool Material Carbide-Tipped
Tube Dash Number 8.000
Tube Outside Diameter Compatibility (Decimal Inch) 0.500
Tube Outside Diameter Compatibility (Inch) 1/2
Minimum Pilot Diameter (Decimal Inch) 0.6860
Maximum Pilot Diameter (Decimal Inch) 0.7715
Spotface Diameter (Decimal Inch) 1.2400
Pilot Length (Decimal Inch) 0.6360
Identification Groove No
Workpiece Compatibility Tubes
Finish/Coating Bright
Head Length (Decimal Inch) 1.5800
Overall Length (Decimal Inch) 3.7000
Shank Diameter (Decimal Inch) 0.7500
Shank Length (Decimal Inch) 2.1200
Seal Angle 30
Thread Type UNF
Flute Type Straight
Number of Flutes 4

$209.29

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It