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  1. Home
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  5. Cutting Tools
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  7. Porting Tools & Counterbores

Porting Tools & Counterbores (993 items) - Page 21

Harvey Tool Counterbores - Flat Bottom 23380-C3
Harvey Tool

Counterbores - Flat Bottom

Zoro # G201018894
Mfr # 23380-C3
product price: 
$60.15
/ea
Harvey Tool 0.25in. 1/4 Cutter dia x 0.8750 in. 7/8 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes 731616
Harvey Tool

0.25in. 1/4 Cutter dia x 0.8750 in. 7/8 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes

Zoro # G911325251
Mfr # 731616
product price: 
$70.69
/ea
Garant Counterbore with Interchangeable Pilot Pins, 40 mm 156520 40
Garant

Counterbore with Interchangeable Pilot Pins, 40 mm

Zoro # G314389799
Mfr # 156520 40
product price: 
$260.99
/ea
Harvey Tool Counterbores - Flat Bottom 23330-C3
Harvey Tool

Counterbores - Flat Bottom

Zoro # G401020246
Mfr # 23330-C3
product price: 
$56.79
/ea
Keo Counterbore, Decimal Inch, 4-1/2 in 902-000-120
Keo

Counterbore, Decimal Inch, 4-1/2 in

Zoro # G321726624
Mfr # 902-000-120
product price: 
$73.39
/ea
Harvey Tool 5/16 Cutter dia. x 1 in. 1 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, TiB2 Coated 23420-C8
Harvey Tool

5/16 Cutter dia. x 1 in. 1 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, TiB2 Coated

Zoro # G311324687
Mfr # 23420-C8
product price: 
$96.15
/ea
Drill America No 6 .137mm Machine Screw Solid Counterbore DEWCBRSOL6
Drill America

No 6 .137mm Machine Screw Solid Counterbore

Zoro # G1741357
Mfr # DEWCBRSOL6
product price: 
$14.49
/ea
Harvey Tool 1/8 in. Cutter dia. x 1/2 in. Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, TiB2 Coated 23408-C8
Harvey Tool

1/8 in. Cutter dia. x 1/2 in. Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, TiB2 Coated

Zoro # G711326410
Mfr # 23408-C8
product price: 
$58.49
/ea
Keo Counterbore, Decimal Inch, 4-1/2 in 902-000-318
Keo

Counterbore, Decimal Inch, 4-1/2 in

Zoro # G821726032
Mfr # 902-000-318
product price: 
$82.59
/ea
Harvey Tool 5/16 Cutter dia. x 1 in. 1 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, AlTiN Coated 731620-C3
Harvey Tool

5/16 Cutter dia. x 1 in. 1 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, AlTiN Coated

Zoro # G911325350
Mfr # 731620-C3
product price: 
$90.99
/ea
Keo Counterbore Set, 7, Fractional Inch 902-000-189
Keo

Counterbore Set, 7, Fractional Inch

Zoro # G321726334
Mfr # 902-000-189
product price: 
$573.99
/ea
Harvey Tool 3/8 in. Cutter dia. x 1 in. 1 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, TiB2 Coated 23424-C8
Harvey Tool

3/8 in. Cutter dia. x 1 in. 1 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, TiB2 Coated

Zoro # G211324640
Mfr # 23424-C8
product price: 
$115.99
/ea
Keo Counterbore Set, 7, Fractional Inch 902-000-294
Keo

Counterbore Set, 7, Fractional Inch

Zoro # G021724876
Mfr # 902-000-294
product price: 
$647.99
/ea
Harvey Tool 3/8  in. Cutter dia. x 1  in. 1 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes 731624-C3
Harvey Tool

3/8 in. Cutter dia. x 1 in. 1 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes

Zoro # G011325380
Mfr # 731624-C3
product price: 
$118.99
/ea
Harvey Tool 0.3437 in. 11/32 Cutter dia x 1.00in. 1 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes 731622
Harvey Tool

0.3437 in. 11/32 Cutter dia x 1.00in. 1 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes

Zoro # G611325346
Mfr # 731622
product price: 
$102.99
/ea
Harvey Tool 0.4375 in. 7/16 Cutter dia x 1.00in. 1 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes 731628
Harvey Tool

0.4375 in. 7/16 Cutter dia x 1.00in. 1 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes

Zoro # G911325404
Mfr # 731628
product price: 
$114.99
/ea
Keo Counterbore, Decimal Inch, 4-1/2 in 902-000-132
Keo

Counterbore, Decimal Inch, 4-1/2 in

Zoro # G521726745
Mfr # 902-000-132
product price: 
$76.79
/ea
Harvey Tool 1/2 in. Cutter dia. x 1 in. 1 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, TiB2 Coated 23432-C8
Harvey Tool

1/2 in. Cutter dia. x 1 in. 1 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, TiB2 Coated

Zoro # G811324668
Mfr # 23432-C8
product price: 
$176.99
/ea
Harvey Tool 1/2  in. Cutter dia. x 1  in. 1 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes 731632-C3
Harvey Tool

1/2 in. Cutter dia. x 1 in. 1 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes

Zoro # G811325351
Mfr # 731632-C3
product price: 
$186.99
/ea
Harvey Tool 1/16 Cutter dia. x 1/4 in. Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, AlTiN Coated 731562-C3
Harvey Tool

1/16 Cutter dia. x 1/4 in. Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, AlTiN Coated

Zoro # G711325017
Mfr # 731562-C3
product price: 
$63.19
/ea
Harvey Tool Counterbores - Flat Bottom 23360
Harvey Tool

Counterbores - Flat Bottom

Zoro # G501019232
Mfr # 23360
product price: 
$48.89
/ea
Harvey Tool Counterbores - Flat Bottom 23360-C3
Harvey Tool

Counterbores - Flat Bottom

Zoro # G901019412
Mfr # 23360-C3
product price: 
$58.49
/ea
Harvey Tool 0.2187 in. 7/32 Cutter dia. x 3/4 Carbide Flat Bottom Counterbore, 4 Flutes, AlTiN Coated 731614-C3
Harvey Tool

0.2187 in. 7/32 Cutter dia. x 3/4 Carbide Flat Bottom Counterbore, 4 Flutes, AlTiN Coated

Zoro # G011325229
Mfr # 731614-C3
product price: 
$79.89
/ea
Keo Counterbore, Decimal Inch, 4-1/2 in 902-000-129
Keo

Counterbore, Decimal Inch, 4-1/2 in

Zoro # G021726566
Mfr # 902-000-129
product price: 
$76.79
/ea
Keo Counterbore, Decimal Inch, 4-1/2 in 902-000-314
Keo

Counterbore, Decimal Inch, 4-1/2 in

Zoro # G221724614
Mfr # 902-000-314
product price: 
$86.15
/ea
Garant Counterbore Set in a Case, 6 Pieces, Type: K 156420 K
Garant

Counterbore Set in a Case, 6 Pieces, Type: K

Zoro # G714389849
Mfr # 156420 K
product price: 
$212.99
/ea
Keo Counterbore, Decimal Inch, 4-1/2 in 902-000-320
Keo

Counterbore, Decimal Inch, 4-1/2 in

Zoro # G321725061
Mfr # 902-000-320
product price: 
$74.89
/ea
Garant Counterbore with Interchangeable Pilot Pins, 26 mm 156520 26
Garant

Counterbore with Interchangeable Pilot Pins, 26 mm

Zoro # G714389757
Mfr # 156520 26
product price: 
$142.99
/ea
Harvey Tool 5/32 Cutter dia x 0.625 in. 5/8 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes 731610
Harvey Tool

5/32 Cutter dia x 0.625 in. 5/8 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes

Zoro # G511325118
Mfr # 731610
product price: 
$52.39
/ea
Keo Counterbore Set, 7, Fractional Inch 902-000-195
Keo

Counterbore Set, 7, Fractional Inch

Zoro # G321727829
Mfr # 902-000-195
product price: 
$573.99
/ea
Keo Counterbore, Decimal Inch, 4-1/2 in 902-000-313
Keo

Counterbore, Decimal Inch, 4-1/2 in

Zoro # G921726406
Mfr # 902-000-313
product price: 
$92.89
/ea
Keo Counterbore, Decimal Inch, 4-1/2 in 902-000-114
Keo

Counterbore, Decimal Inch, 4-1/2 in

Zoro # G821726896
Mfr # 902-000-114
product price: 
$70.69
/ea
Harvey Tool 0.0937 in. 3/32 Cutter dia. x 3/8 in. Carbide Flat Bottom Counterbore, 4 Flutes, AlTiN Coated 731593-C3
Harvey Tool

0.0937 in. 3/32 Cutter dia. x 3/8 in. Carbide Flat Bottom Counterbore, 4 Flutes, AlTiN Coated

Zoro # G411325058
Mfr # 731593-C3
product price: 
$63.29
/ea
Keo Counterbore, Decimal Inch, 4-1/2 in 902-000-117
Keo

Counterbore, Decimal Inch, 4-1/2 in

Zoro # G721727269
Mfr # 902-000-117
product price: 
$73.39
/ea
Keo Counterbore, Decimal Inch, 4-1/2 in 902-000-317
Keo

Counterbore, Decimal Inch, 4-1/2 in

Zoro # G621725921
Mfr # 902-000-317
product price: 
$82.59
/ea
Harvey Tool 9/32 in. Cutter dia. x7/8 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, AlTiN Coated 731618-C3
Harvey Tool

9/32 in. Cutter dia. x7/8 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, AlTiN Coated

Zoro # G611325216
Mfr # 731618-C3
product price: 
$99.89
/ea
Porting Tools & Counterbores (993 items) - Page 21
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About Porting Tools & Counterbores

Porting Tools & Counterbores are used to improve the flow of air or gas in an engine, turbine, compressor, and more. They are typically used to reduce turbulence in the airflow and increase performance.

Types of Porting Tools & Counterbores

Chainsaw porting tools are commonly used for small engines like lawnmowers, as they can be adjusted easily and quickly. Ported tools are designed for larger engines such as those found in cars and motorcycles. Porting supplies include special cutting tools that allow for precise modifications to be made with minimal effort.

How Porting Tools & Counterbores are Made

Porting tools are usually constructed from hardened steel or aluminum alloy materials that can withstand high temperatures and pressures associated with engine operations. Special compounds may also be applied during the manufacturing process to ensure optimal performance.

Industries that use Porting Tools & Counterbores

Porting Tools & Counterbores can be found in a variety of industries including automotive, aerospace, marine, industrial machinery, and power sports. Professionals such as mechanics, engineers, machinists, technicians often use these tools on the job.

Find the Porting Tools & Counterbores You Need at Zoro

Looking for a specific item? Use our robust search tool to find it by name or keyword, or use our handy filters to narrow down our full assortment. You can also check out our whole selection of Porting Tools & Counterbores along with other tools or equipment to ensure you have all you need to tackle the job, especially if you're taking on a DIY project for the first time.

Plus, when you shop at Zoro, you'll always enjoy competitive prices on tons of great brands you know and trust. We make the shopping experience as fast and seamless as possible with free shipping on orders over $50 for registered users, Net 30 payment terms for qualifying customers, and an unparalleled customer service experience.

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