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  5. Cutting Tools
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  7. Porting Tools & Counterbores

Porting Tools & Counterbores (993 items) - Page 15

Garant Counterbore with Interchangeable Pilot Pins, 18 mm 156520 18
Garant

Counterbore with Interchangeable Pilot Pins, 18 mm

Zoro # G314389881
Mfr # 156520 18
product price: 
$106.99
/ea
Kodiak Cutting Tools No. 6 Counterbores 1/32 Oversize Capscrew Style 5495985
Kodiak Cutting Tools

No. 6 Counterbores 1/32 Oversize Capscrew Style

Zoro # G8633590
Mfr # 5495985
product price: 
$45.25
/ea
Garant Interchangeable Pilot Pin for Counterbore 156520 26-30, 17 mm 156620 8X17
Garant

Interchangeable Pilot Pin for Counterbore 156520 26-30, 17 mm

Zoro # G214389547
Mfr # 156620 8X17
product price: 
$39.75
/ea
Link Ua4-6MM Metric Shcs HSS Counterbore 72-L2-513
Link

Ua4-6MM Metric Shcs HSS Counterbore

Zoro # G7642725
Mfr # 72-L2-513
product price: 
$32.75
/ea
Link 7/16" Co 3Fl 0.468 Pilot X 0.695 Cbore 1/2" Shank X 6" Oal 50-CO-187
Link

7/16" Co 3Fl 0.468 Pilot X 0.695 Cbore 1/2" Shank X 6" Oal

Zoro # G7641298
Mfr # 50-CO-187
product price: 
$105.99
/ea
Kodiak Cutting Tools No. 5/16 Counterbores On Size Capscrew Style 5495721
Kodiak Cutting Tools

No. 5/16 Counterbores On Size Capscrew Style

Zoro # G8662397
Mfr # 5495721
product price: 
$69.99
/ea
Internal Tool A Nc-281-312 N/C Counterbore 85-2811
Internal Tool

A Nc-281-312 N/C Counterbore

Zoro # G600402386
Mfr # 85-2811
product price: 
$82.79
/ea
Super Tool Reduced Shank Counterbore, 25/32" D 52225
Super Tool

Reduced Shank Counterbore, 25/32" D

Zoro # G0331508
Mfr # 52225
product price: 
$132.99
/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
Keo Counterbore, Decimal Inch, 4-1/2 in 902-000-315
Keo

Counterbore, Decimal Inch, 4-1/2 in

Zoro # G621725426
Mfr # 902-000-315
product price: 
$86.15
/ea
Super Tool Counterbore, 19/32" D, Carbide Tipped 5775938
Super Tool

Counterbore, 19/32" D, Carbide Tipped

Zoro # G0330360
Mfr # 5775938
product price: 
$130.99
/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
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
Qualtech Counterbore, Morse Taper Shank, Series DEWCBR, 3 Bore, 978 Overall Length, 5 Shank Diameter, 1 DEWCBRTS3INCH
Qualtech

Counterbore, Morse Taper Shank, Series DEWCBR, 3 Bore, 978 Overall Length, 5 Shank Diameter, 1

Zoro # G008028997
Mfr # DEWCBRTS3INCH
product price: 
$611.99
/ea
Internal Tool A Nc-734-750 N/C Counterbore 85-7341
Internal Tool

A Nc-734-750 N/C Counterbore

Zoro # G700402552
Mfr # 85-7341
product price: 
$470.99
/ea
Link 5/8" Co 3Fl 0.655 Pilot X 0.978 Cbore 5/8" Shank X 6" Oal 50-CO-189
Link

5/8" Co 3Fl 0.655 Pilot X 0.978 Cbore 5/8" Shank X 6" Oal

Zoro # G7642698
Mfr # 50-CO-189
product price: 
$183.99
/ea
Kodiak Cutting Tools No. 6 Counterbores 1/64 Oversize Capscrew Style 5495831
Kodiak Cutting Tools

No. 6 Counterbores 1/64 Oversize Capscrew Style

Zoro # G8614824
Mfr # 5495831
product price: 
$45.25
/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
Internal Tool A Nc-140-187 N/C Counterbore 85-1401
Internal Tool

A Nc-140-187 N/C Counterbore

Zoro # G600402416
Mfr # 85-1401
product price: 
$50.39
/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
Link 5MM Co 3Fl 5.8 Pilot X 9.3 Cbore 6.35 Shank X 100 Oal 75-CO-522
Link

5MM Co 3Fl 5.8 Pilot X 9.3 Cbore 6.35 Shank X 100 Oal

Zoro # G7644965
Mfr # 75-CO-522
product price: 
$74.35
/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
Link 1/4" HSS Se .280 X .375 Drill .406 Cbore 7/16 Shank 1-3/4 Oal 50-L2-184
Link

1/4" HSS Se .280 X .375 Drill .406 Cbore 7/16 Shank 1-3/4 Oal

Zoro # G7636039
Mfr # 50-L2-184
product price: 
$25.49
/ea
Garant Interchangeable Pilot Pin for Counterbore 156520 24, 12 mm 156620 6X12
Garant

Interchangeable Pilot Pin for Counterbore 156520 24, 12 mm

Zoro # G414389705
Mfr # 156620 6X12
product price: 
$37.85
/ea
Keo Counterbore, Decimal Inch, 4-1/2 in 902-000-111
Keo

Counterbore, Decimal Inch, 4-1/2 in

Zoro # G321727119
Mfr # 902-000-111
product price: 
$67.69
/ea
Link 16MM HSS Se 16.67 X 17.46 Drill 24.60 Cbore 15.87 Shank 69.85 Oal 75-L2-528
Link

16MM HSS Se 16.67 X 17.46 Drill 24.60 Cbore 15.87 Shank 69.85 Oal

Zoro # G7644980
Mfr # 75-L2-528
product price: 
$52.15
/ea
Super Tool Counterbore, 19/32" D, Carbide Tipped 5795938
Super Tool

Counterbore, 19/32" D, Carbide Tipped

Zoro # G0330062
Mfr # 5795938
product price: 
$125.99
/ea
Super Tool Counterbore, 13/16" D, Carbide Tipped 59810
Super Tool

Counterbore, 13/16" D, Carbide Tipped

Zoro # G0330193
Mfr # 59810
product price: 
$129.99
/ea
Keo Counterbore, Decimal Inch, 4-1/2 in 902-000-108
Keo

Counterbore, Decimal Inch, 4-1/2 in

Zoro # G221726663
Mfr # 902-000-108
product price: 
$67.69
/ea
Tungaloy Solid End Mill Head, VGC160L15.0R04-, PK2 6859480
Tungaloy

Solid End Mill Head, VGC160L15.0R04-, PK2

Zoro # G501779006
Mfr # 6859480
product price: 
$314.99
/pk of 2, $157.50/ea
Morse Cap Screw Counterbore, Series 1766, 4 Screw, 0199 Bore Dia, 378 Overall Length, 4 Flutes, 01 25701
Morse

Cap Screw Counterbore, Series 1766, 4 Screw, 0199 Bore Dia, 378 Overall Length, 4 Flutes, 01

Zoro # G108028958
Mfr # 25701
product price: 
$53.99
/ea
Kodiak Cutting Tools No. 5/8 Counterbores On Size Capscrew Style 5495765
Kodiak Cutting Tools

No. 5/8 Counterbores On Size Capscrew Style

Zoro # G8654444
Mfr # 5495765
product price: 
$164.99
/ea
Harvey Tool 0.1181 in. 3 mm Cutter dia. x 3/8 in. Carbide Flat Bottom Counterbore, 4 Flutes, TiB2 Coated 2343M-C8
Harvey Tool

0.1181 in. 3 mm Cutter dia. x 3/8 in. Carbide Flat Bottom Counterbore, 4 Flutes, TiB2 Coated

Zoro # G411324723
Mfr # 2343M-C8
product price: 
$58.49
/ea
Harvey Tool Counterbores - Flat Bottom 23360
Harvey Tool

Counterbores - Flat Bottom

Zoro # G501019232
Mfr # 23360
product price: 
$48.89
/ea
Link 1/2" HSS Se .532 X .562 Drill .781 Cbore 5/8 Shank 2-11/16 Oal 50-L2-188
Link

1/2" HSS Se .532 X .562 Drill .781 Cbore 5/8 Shank 2-11/16 Oal

Zoro # G7638735
Mfr # 50-L2-188
product price: 
$51.19
/ea
Link Ua7-12MM Metric Shcs HSS Counterbore 72-L2-516
Link

Ua7-12MM Metric Shcs HSS Counterbore

Zoro # G7643985
Mfr # 72-L2-516
product price: 
$51.65
/ea
Porting Tools & Counterbores (993 items) - Page 15
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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.

Related Categories

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Sockets & RatchetsMeasuring and Layout ToolsKnives, Cutters & SnipsPrecision Measuring ToolsScrewdrivers and Nutdrivers
pilot counterboremetric counterboreinterchangeable pilot counterbore5/8 counterborecounter bore pilot
1-1/4 in counterborehigh speed steelcounterbores - flat bottommetric shcscounter bore set

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