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

Porting Tools & Counterbores (993 items) - Page 18

Super Tool Counterbore, 1-5/16" D, Carbide Tipped 56418
Super Tool

Counterbore, 1-5/16" D, Carbide Tipped

Zoro # G0329767
Mfr # 56418
product price: 
$166.99
/ea
Harvey Tool Counterbores-Flat Bottom, 676716-C3, AlTiN, 1/4" Cutter Diameter, 1-5/16" Flute Length 676716-C3
Harvey Tool

Counterbores-Flat Bottom, 676716-C3, AlTiN, 1/4" Cutter Diameter, 1-5/16" Flute Length

Zoro # G522920609
Mfr # 676716-C3
product price: 
$80.35
/ea
Super Tool Counterbore, 1-13/16" D, Carbide Tipped 56425
Super Tool

Counterbore, 1-13/16" D, Carbide Tipped

Zoro # G0329922
Mfr # 56425
product price: 
$396.99
/ea
Tungaloy Solid End Mill Head, VGC120L10.0R20-, PK2 6859335
Tungaloy

Solid End Mill Head, VGC120L10.0R20-, PK2

Zoro # G901779019
Mfr # 6859335
product price: 
$201.99
/pk of 2, $101.00/ea
Internal Tool A Nc-406-437 N/C Counterbore 85-4061
Internal Tool

A Nc-406-437 N/C Counterbore

Zoro # G200402373
Mfr # 85-4061
product price: 
$126.99
/ea
Kodiak Cutting Tools No. 4 Counterbores 1/32 Oversize Capscrew Style 5495963
Kodiak Cutting Tools

No. 4 Counterbores 1/32 Oversize Capscrew Style

Zoro # G8627677
Mfr # 5495963
product price: 
$43.85
/ea
Tungaloy Solid End Mill Head, VGC120L10.0R10-, PK2 6859505
Tungaloy

Solid End Mill Head, VGC120L10.0R10-, PK2

Zoro # G401779069
Mfr # 6859505
product price: 
$197.99
/pk of 2, $99.00/ea
Super Tool Counterbore, 7/8" D, Carbide Tipped 59811
Super Tool

Counterbore, 7/8" D, Carbide Tipped

Zoro # G0329968
Mfr # 59811
product price: 
$149.99
/ea
Internal Tool A Nc-234-250 N/C Counterbore 85-2341
Internal Tool

A Nc-234-250 N/C Counterbore

Zoro # G100402404
Mfr # 85-2341
product price: 
$59.59
/ea
Internal Tool A Nc-375-375 N/C Counterbore 85-3751
Internal Tool

A Nc-375-375 N/C Counterbore

Zoro # G600402423
Mfr # 85-3751
product price: 
$108.99
/ea
Tungaloy Solid End Mill Head, VGC100L09.0R04-, PK2 6859479
Tungaloy

Solid End Mill Head, VGC100L09.0R04-, PK2

Zoro # G001779018
Mfr # 6859479
product price: 
$159.99
/pk of 2, $80.00/ea
Tungaloy Solid End Mill Head, VGC157L15.0R03-, PK2 6859506
Tungaloy

Solid End Mill Head, VGC157L15.0R03-, PK2

Zoro # G601779043
Mfr # 6859506
product price: 
$108.99
/pk of 2, $54.50/ea
Internal Tool A Nc-312-312 N/C Counterbore 85-3121
Internal Tool

A Nc-312-312 N/C Counterbore

Zoro # G100402381
Mfr # 85-3121
product price: 
$80.49
/ea
Internal Tool A Nc-156-187 N/C Counterbore 85-1561
Internal Tool

A Nc-156-187 N/C Counterbore

Zoro # G500402448
Mfr # 85-1561
product price: 
$50.39
/ea
Morse Cap Screw Counterbore, Straight Shank, Series 1766, 12 mm Screw, 06496 Bore Dia, 712 Overall L 25752
Morse

Cap Screw Counterbore, Straight Shank, Series 1766, 12 mm Screw, 06496 Bore Dia, 712 Overall L

Zoro # G908029070
Mfr # 25752
product price: 
$125.99
/ea
Super Tool Counterbore, 11/32" D, Carbide Tipped 5793438
Super Tool

Counterbore, 11/32" D, Carbide Tipped

Zoro # G0330272
Mfr # 5793438
product price: 
$117.99
/ea
Kodiak Cutting Tools No. 5 Counterbores 1/64 Oversize Capscrew Style 5495820
Kodiak Cutting Tools

No. 5 Counterbores 1/64 Oversize Capscrew Style

Zoro # G8614849
Mfr # 5495820
product price: 
$40.35
/ea
Super Tool Counterbore, 1/4" D, Carbide Tipped 56401
Super Tool

Counterbore, 1/4" D, Carbide Tipped

Zoro # G0330333
Mfr # 56401
product price: 
$88.39
/ea
Internal Tool A Nc-625-625 N/C Counterbore 85-6251
Internal Tool

A Nc-625-625 N/C Counterbore

Zoro # G500402530
Mfr # 85-6251
product price: 
$333.99
/ea
Kodiak Cutting Tools No. 10 Counterbores 1/64 Oversize Capscrew Style 5495853
Kodiak Cutting Tools

No. 10 Counterbores 1/64 Oversize Capscrew Style

Zoro # G8604559
Mfr # 5495853
product price: 
$49.65
/ea
Super Tool Counterbore, 17/32" D, Carbide Tipped 5795312
Super Tool

Counterbore, 17/32" D, Carbide Tipped

Zoro # G0330169
Mfr # 5795312
product price: 
$148.99
/ea
Tungaloy Solid End Mill Head, VGC100L09.0R20-, PK2 6859423
Tungaloy

Solid End Mill Head, VGC100L09.0R20-, PK2

Zoro # G901779033
Mfr # 6859423
product price: 
$159.99
/pk of 2, $80.00/ea
Internal Tool A Nc-125-125 N/C Counterbore 85-1251
Internal Tool

A Nc-125-125 N/C Counterbore

Zoro # G700402361
Mfr # 85-1251
product price: 
$36.79
/ea
Garant Interchangeable Pilot Pin for Counterbore 156520 18-20, 13 mm 156620 5X13
Garant

Interchangeable Pilot Pin for Counterbore 156520 18-20, 13 mm

Zoro # G914389717
Mfr # 156620 5X13
product price: 
$33.15
/ea
Super Tool Counterbore, 27/32" D, Carbide Tipped 5778438
Super Tool

Counterbore, 27/32" D, Carbide Tipped

Zoro # G0330290
Mfr # 5778438
product price: 
$145.99
/ea
Super Tool Reduced Shank Counterbore, 11/16" D 52222
Super Tool

Reduced Shank Counterbore, 11/16" D

Zoro # G0331377
Mfr # 52222
product price: 
$117.99
/ea
Link Ua6-5/16 English Shcs HSS Counterbore 60-L2-298
Link

Ua6-5/16 English Shcs HSS Counterbore

Zoro # G7638787
Mfr # 60-L2-298
product price: 
$27.89
/ea
Tungaloy Solid End Mill Head, VGC080L08.0R04-, PK2 6859503
Tungaloy

Solid End Mill Head, VGC080L08.0R04-, PK2

Zoro # G101779024
Mfr # 6859503
product price: 
$139.99
/pk of 2, $70.00/ea
Link 10MM Co 3Fl 10.8 Pilot X 16.8 Cbore 9.53 Shank X 125 Oal 75-CO-525
Link

10MM Co 3Fl 10.8 Pilot X 16.8 Cbore 9.53 Shank X 125 Oal

Zoro # G7642506
Mfr # 75-CO-525
product price: 
$109.99
/ea
Kodiak Cutting Tools No. 8 Counterbores 1/32 Oversize Capscrew Style 5495996
Kodiak Cutting Tools

No. 8 Counterbores 1/32 Oversize Capscrew Style

Zoro # G8624396
Mfr # 5495996
product price: 
$49.65
/ea
Link Ua3 #6 English Shcs HSS Counterbore 60-L2-294
Link

Ua3 #6 English Shcs HSS Counterbore

Zoro # G7638769
Mfr # 60-L2-294
product price: 
$22.65
/ea
Internal Tool A Nc-390-437 N/C Counterbore 85-3901
Internal Tool

A Nc-390-437 N/C Counterbore

Zoro # G100402466
Mfr # 85-3901
product price: 
$127.99
/ea
Super Tool Reduced Shank Counterbore, 15/32" D 52215
Super Tool

Reduced Shank Counterbore, 15/32" D

Zoro # G0331523
Mfr # 52215
product price: 
$102.99
/ea
Internal Tool A Nc-484-500 N/C Counterbore 85-4841
Internal Tool

A Nc-484-500 N/C Counterbore

Zoro # G200402397
Mfr # 85-4841
product price: 
$170.99
/ea
Internal Tool A Nc-297-312 N/C Counterbore 85-2971
Internal Tool

A Nc-297-312 N/C Counterbore

Zoro # G200402403
Mfr # 85-2971
product price: 
$80.49
/ea
Garant Interchangeable Pilot Pin for Counterbore 156520 33-40, 26 mm 156620 10X26
Garant

Interchangeable Pilot Pin for Counterbore 156520 33-40, 26 mm

Zoro # G614389789
Mfr # 156620 10X26
product price: 
$48.59
/ea
Porting Tools & Counterbores (993 items) - Page 18
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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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