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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 12

Harvey Tool Counterbores - Flat Bottom, 0.5625" (9/16), Number of Flutes: 4 23436
Harvey Tool

Counterbores - Flat Bottom, 0.5625" (9/16), Number of Flutes: 4

Zoro # G7155069
Mfr # 23436
product price:  $224.99
/ea
Garant Counterbore for Through Holes, 180 Deg, Uncoated, 11X6.4 mm 156020 11X6,4
Garant

Counterbore for Through Holes, 180 Deg, Uncoated, 11X6.4 mm

Zoro # G414389675
Mfr # 156020 11X6,4
product price:  $23.15
/ea
Garant Counterbore for Through Holes, 180 Deg, Uncoated, 11X6.6 mm 156020 11X6,6
Garant

Counterbore for Through Holes, 180 Deg, Uncoated, 11X6.6 mm

Zoro # G814389626
Mfr # 156020 11X6,6
product price:  $23.15
/ea
Keo Counterbore, Decimal Inch, 5 in 902-000-141
Keo

Counterbore, Decimal Inch, 5 in

Zoro # G521725823
Mfr # 902-000-141
product price:  $93.39
/ea
Keo Counterbore, Decimal Inch, 6 in 902-000-306
Keo

Counterbore, Decimal Inch, 6 in

Zoro # G421727699
Mfr # 902-000-306
product price:  $146.99
/ea
Harvey Tool Counterbores - Flat Bottom, 0.1181" 2343M-C6
Harvey Tool

Counterbores - Flat Bottom, 0.1181"

Zoro # G7161387
Mfr # 2343M-C6
product price:  $61.89
/ea
Drill America No 12 .215mm Machine Screw Solid Counterbore DEWCBRSOL12
Drill America

No 12 .215mm Machine Screw Solid Counterbore

Zoro # G1739564
Mfr # DEWCBRSOL12
product price:  $16.25
/ea
Keo Counterbore, Decimal Inch, 3 in 902-000-078
Keo

Counterbore, Decimal Inch, 3 in

Zoro # G821726254
Mfr # 902-000-078
product price:  $56.29
/ea
Keo Counterbore, Decimal Inch, 6 in 902-000-302
Keo

Counterbore, Decimal Inch, 6 in

Zoro # G321727744
Mfr # 902-000-302
product price:  $202.99
/ea
Drill America 5/8" 21/32" Continuous Pilot Capscrew Counterbore DEWCSCBR5/8
Drill America

5/8" 21/32" Continuous Pilot Capscrew Counterbore

Zoro # G1742644
Mfr # DEWCSCBR5/8
product price:  $54.45
/ea
Harvey Tool Counterbores - Flat Bottom 2345M-C6
Harvey Tool

Counterbores - Flat Bottom

Zoro # G904195397
Mfr # 2345M-C6
product price:  $77.35
/ea
Garant Counterbore for Through Holes, 180 Deg, Uncoated, 15X9 mm 156020 15X9
Garant

Counterbore for Through Holes, 180 Deg, Uncoated, 15X9 mm

Zoro # G314389669
Mfr # 156020 15X9
product price:  $36.99
/ea
Harvey Tool Counterbores - Flat Bottom, 0.7500" (3/4) 23448-C3
Harvey Tool

Counterbores - Flat Bottom, 0.7500" (3/4)

Zoro # G7257804
Mfr # 23448-C3
product price:  $373.99
/ea
Harvey Tool Counterbores - Flat Bottom, 0.0937" (3/32) 23393
Harvey Tool

Counterbores - Flat Bottom, 0.0937" (3/32)

Zoro # G7149198
Mfr # 23393
product price:  $51.29
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.3437" (11/32) 25522-C3
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.3437" (11/32)

Zoro # G7164780
Mfr # 25522-C3
product price:  $162.99
/ea
Keo Counterbore, Decimal Inch, 6 in 902-000-159
Keo

Counterbore, Decimal Inch, 6 in

Zoro # G421726128
Mfr # 902-000-159
product price:  $125.99
/ea
Harvey Tool Counterbores - Flat Bottom, 0.0937" (3/32) 23393-C6
Harvey Tool

Counterbores - Flat Bottom, 0.0937" (3/32)

Zoro # G7155105
Mfr # 23393-C6
product price:  $61.89
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.0781" (5/64) 25478-C3
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.0781" (5/64)

Zoro # G7242919
Mfr # 25478-C3
product price:  $71.89
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.2362" 2556M-C3
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.2362"

Zoro # G7164817
Mfr # 2556M-C3
product price:  $121.99
/ea
Keo Counterbore, Metric, 80 mm 902-000-237
Keo

Counterbore, Metric, 80 mm

Zoro # G521725885
Mfr # 902-000-237
product price:  $71.69
/ea
Drill America No 5 .124mm Machine Screw Solid Counterbore DEWCBRSOL5
Drill America

No 5 .124mm Machine Screw Solid Counterbore

Zoro # G1744997
Mfr # DEWCBRSOL5
product price:  $13.59
/ea
Keo Counterbore, Decimal Inch, 5 in 902-000-310
Keo

Counterbore, Decimal Inch, 5 in

Zoro # G321727607
Mfr # 902-000-310
product price:  $110.99
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.0781" (5/64) 25478
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.0781" (5/64)

Zoro # G7256438
Mfr # 25478
product price:  $66.39
/ea
Keo Counterbore, Decimal Inch, 3 in 902-000-072
Keo

Counterbore, Decimal Inch, 3 in

Zoro # G121727616
Mfr # 902-000-072
product price:  $53.49
/ea
Keo Counterbore, Decimal Inch, 3 in 902-000-084
Keo

Counterbore, Decimal Inch, 3 in

Zoro # G321727010
Mfr # 902-000-084
product price:  $59.39
/ea
Link 1/4" Co 3Fl 0.281 Pilot X 0.414 Cbore 5/16" Shank X 4" Oal 50-CO-184
Link

1/4" Co 3Fl 0.281 Pilot X 0.414 Cbore 5/16" Shank X 4" Oal

Zoro # G7637317
Mfr # 50-CO-184
product price:  $78.85
/ea
Super Tool Reduced Shank Counterbore, 7/16" D 52214
Super Tool

Reduced Shank Counterbore, 7/16" D

Zoro # G0331471
Mfr # 52214
product price:  $107.99
/ea
Internal Tool A Nc-219-250 N/C Counterbore 85-2191
Internal Tool

A Nc-219-250 N/C Counterbore

Zoro # G900402406
Mfr # 85-2191
product price:  $57.99
/ea
Garant Interchangeable Pilot Pin for Counterbore 156520 33-40, 21 mm 156620 10X21
Garant

Interchangeable Pilot Pin for Counterbore 156520 33-40, 21 mm

Zoro # G414389811
Mfr # 156620 10X21
product price:  $45.65
/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
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
Tungaloy Solid End Mill Head, VGC078L08.0R02-, PK2 6859332
Tungaloy

Solid End Mill Head, VGC078L08.0R02-, PK2

Zoro # G401778987
Mfr # 6859332
product price:  $139.99
/pk 2, $70.00/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 2, $54.50/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:  $67.69
/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 2, $101.00/ea
Garant Interchangeable Pilot Pin for Counterbore 156520 33-40, 17.5 mm 156620 10X17,5
Garant

Interchangeable Pilot Pin for Counterbore 156520 33-40, 17.5 mm

Zoro # G014389785
Mfr # 156620 10X17,5
product price:  $45.65
/ea
Porting Tools & Counterbores (993 items) - Page 12
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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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