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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 28

Keo Counterbore, Decimal Inch, 5 in 902-000-138
Keo

Counterbore, Decimal Inch, 5 in

Zoro # G521725854
Mfr # 902-000-138
product price: 
$93.39
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.2812" (9/32) 25518
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.2812" (9/32)

Zoro # G7263176
Mfr # 25518
product price: 
$117.99
/ea
Keo Counterbore, 1/32 Clearance, Size 7/16, Co 902-000-027
Keo

Counterbore, 1/32 Clearance, Size 7/16, Co

Zoro # G3237306
Mfr # 902-000-027
product price: 
$97.55
/ea
Internal Tool A Nc-672-750 N/C Counterbore 85-6721
Internal Tool

A Nc-672-750 N/C Counterbore

Zoro # G700402484
Mfr # 85-6721
product price: 
$444.99
/ea
Super Tool Reduced Shank Counterbore, 1-7/8" D 52260
Super Tool

Reduced Shank Counterbore, 1-7/8" D

Zoro # G0331517
Mfr # 52260
product price: 
$232.99
/ea
Keo Counterbore, Decimal Inch, 4-1/2 in 902-000-319
Keo

Counterbore, Decimal Inch, 4-1/2 in

Zoro # G021725804
Mfr # 902-000-319
product price: 
$78.19
/ea
Internal Tool A Nc-578-625 N/C Counterbore 85-5781
Internal Tool

A Nc-578-625 N/C Counterbore

Zoro # G200402502
Mfr # 85-5781
product price: 
$331.99
/ea
Super Tool 1 in. dia. Carbide Tipped Counterbore for Steel, Morse Taper Shank No. 3, 3 flutes 47421
Super Tool

1 in. dia. Carbide Tipped Counterbore for Steel, Morse Taper Shank No. 3, 3 flutes

Zoro # G810744221
Mfr # 47421
product price: 
$174.99
/ea
Super Tool Counterbore, 27/32" D, Carbide Tipped 5798438
Super Tool

Counterbore, 27/32" D, Carbide Tipped

Zoro # G0330187
Mfr # 5798438
product price: 
$158.99
/ea
Cleveland Port Tool, 3.000" L, 0.234" dia., Bright C46421
Cleveland

Port Tool, 3.000" L, 0.234" dia., Bright

Zoro # G4778702
Mfr # C46421
product price: 
$122.99
/ea
Hhip 3/8 X 1/2" Shank High Speed Steel 2 Flute Solid  Cap Screw Counterbore 2007-0107
Hhip

3/8 X 1/2" Shank High Speed Steel 2 Flute Solid Cap Screw Counterbore

Zoro # G2468218
Mfr # 2007-0107
product price: 
$24.89
/ea
Cleveland Counterbore, 2.046" L, 0.313" dia., Bright C46587
Cleveland

Counterbore, 2.046" L, 0.313" dia., Bright

Zoro # G4812433
Mfr # C46587
product price: 
$37.89
/ea
Link 12MM Co 3Fl 12.8 Pilot X 18.8 Cbore 9.53 Shank X 125 Oal 75-CO-526
Link

12MM Co 3Fl 12.8 Pilot X 18.8 Cbore 9.53 Shank X 125 Oal

Zoro # G7641264
Mfr # 75-CO-526
product price: 
$108.99
/ea
Super Tool Reduced Shank Counterbore, 11/32" D 52211
Super Tool

Reduced Shank Counterbore, 11/32" D

Zoro # G0331447
Mfr # 52211
product price: 
$75.59
/ea
Harvey Tool 0.4220'', 27/64 Cutter DIA x 1.0000'', 1 Flute Length - 4 FL 23427
Harvey Tool

0.4220'', 27/64 Cutter DIA x 1.0000'', 1 Flute Length - 4 FL

Zoro # G213081602
Mfr # 23427
product price: 
$120.99
/ea
Harvey Tool 11/32 in. Cutter dia. x 1 in. 1 Carbide Flat Bottom Counterbore, 4 Flutes, AlTiN Coated 731622-C3
Harvey Tool

11/32 in. Cutter dia. x 1 in. 1 Carbide Flat Bottom Counterbore, 4 Flutes, AlTiN Coated

Zoro # G811325290
Mfr # 731622-C3
product price: 
$118.99
/ea
Harvey Tool Counterbores - Flat Bottom 23411-C6
Harvey Tool

Counterbores - Flat Bottom

Zoro # G804195398
Mfr # 23411-C6
product price: 
$61.49
/ea
Link Ua3-4MM Metric Shcs HSS Counterbore 72-L2-511
Link

Ua3-4MM Metric Shcs HSS Counterbore

Zoro # G7639995
Mfr # 72-L2-511
product price: 
$24.49
/ea
Drill America 5/16" HSS Solid Counterbore DEWCBRSOL5/16
Drill America

5/16" HSS Solid Counterbore

Zoro # G1741174
Mfr # DEWCBRSOL5/16
product price: 
$19.55
/ea
Harvey Tool Counterbores - Flat Bottom, 0.1575", Shank Dia.: 3/16" 2344M
Harvey Tool

Counterbores - Flat Bottom, 0.1575", Shank Dia.: 3/16"

Zoro # G7243025
Mfr # 2344M
product price: 
$49.15
/ea
Kodiak Cutting Tools No. 10 Counterbores On Size Capscrew Style 5495699
Kodiak Cutting Tools

No. 10 Counterbores On Size Capscrew Style

Zoro # G8655467
Mfr # 5495699
product price: 
$49.65
/ea
Porting Tools & Counterbores (993 items) - Page 28
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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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