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  5. Cutting Tools
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  7. Porting Tools & Counterbores
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Porting Tools & Counterbores (995 items) - Page 7

Garant Counterbore with Interchangeable Pilot Pins, 30 mm 156520 30
Garant

Counterbore with Interchangeable Pilot Pins, 30 mm

Zoro # G114389821
Mfr # 156520 30
product price:  $171.99
/ea
Harvey Tool Counterbores - Flat Bottom 23360-C3
Harvey Tool

Counterbores - Flat Bottom

Zoro # G901019412
Mfr # 23360-C3
product price:  $40.99
/ea
Harvey Tool 0.0394 in. 1 mm Cutter dia. x 0.1560 in. 5/32 Carbide Flat Bottom Counterbore, 4 Flutes 2331M-C8
Harvey Tool

0.0394 in. 1 mm Cutter dia. x 0.1560 in. 5/32 Carbide Flat Bottom Counterbore, 4 Flutes

Zoro # G311326391
Mfr # 2331M-C8
product price:  $46.99
/ea
Garant Counterbore with Interchangeable Pilot Pins, 33 mm 156520 33
Garant

Counterbore with Interchangeable Pilot Pins, 33 mm

Zoro # G414389828
Mfr # 156520 33
product price:  $192.99
/ea
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:  $102.99
/ea
Scientific Cutting Tools Port Tool, MS33649, Reamer, 7/8-14 UNJF MS33649-10R
Scientific Cutting Tools

Port Tool, MS33649, Reamer, 7/8-14 UNJF

Zoro # G8281987
Mfr # MS33649-10R
product price:  $258.29
/ea
Cleveland Counterbore, 8.250" L, 0.750" dia., Bright C91726
Cleveland

Counterbore, 8.250" L, 0.750" dia., Bright

Zoro # G4836653
Mfr # C91726
product price:  $198.99
/ea
Scientific Cutting Tools Port Tool, RPT, Reamer, 3/8-24 UNJF RPT-5
Scientific Cutting Tools

Port Tool, RPT, Reamer, 3/8-24 UNJF

Zoro # G8145006
Mfr # RPT-5
product price:  $241.99
/ea
Cleveland Counterbore, 8.813" L, 1.000" dia., Bright C91835
Cleveland

Counterbore, 8.813" L, 1.000" dia., Bright

Zoro # G4844907
Mfr # C91835
product price:  $327.99
/ea
Cleveland Counterbore, 7.000" L, 0.500" dia., Bright C91717
Cleveland

Counterbore, 7.000" L, 0.500" dia., Bright

Zoro # G4756217
Mfr # C91717
product price:  $182.99
/ea
Drill America 1/2" 17/32" Continuous Pilot Capscrew Counterbore DEWCSCBR1/2
Drill America

1/2" 17/32" Continuous Pilot Capscrew Counterbore

Zoro # G1739406
Mfr # DEWCSCBR1/2
product price:  $45.45
/ea
Drill America No 8 11/64" Continuous Pilot Capscrew Counterbore DEWCSCBR8
Drill America

No 8 11/64" Continuous Pilot Capscrew Counterbore

Zoro # G1741278
Mfr # DEWCSCBR8
product price:  $23.19
/ea
Harvey Tool 0.3320'' Cutter DIA x 1.0000'', 1 Flute Length - 4 FL - AlTiN Coated 23731-C3
Harvey Tool

0.3320'' Cutter DIA x 1.0000'', 1 Flute Length - 4 FL - AlTiN Coated

Zoro # G813082092
Mfr # 23731-C3
product price:  $87.15
/ea
Keo Counterbore, Close Fit, Size 3/4, Cobalt 902-000-034
Keo

Counterbore, Close Fit, Size 3/4, Cobalt

Zoro # G2348534
Mfr # 902-000-034
product price:  $236.99
/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:  $91.95
/ea
Scientific Cutting Tools Port Tool, RPT, Reamer, 1 1/8-18 UNJEF RPT-16
Scientific Cutting Tools

Port Tool, RPT, Reamer, 1 1/8-18 UNJEF

Zoro # G7876495
Mfr # RPT-16
product price:  $272.78
/ea
Harvey Tool Counterbores - Flat Bottom, 0.4375" (7/16) 23428-C3
Harvey Tool

Counterbores - Flat Bottom, 0.4375" (7/16)

Zoro # G7158544
Mfr # 23428-C3
product price:  $114.99
/ea
Harvey Tool Counterbores - Flat Bottom, 0.0781" (5/64) 23378-C3
Harvey Tool

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

Zoro # G7151964
Mfr # 23378-C3
product price:  $47.45
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.0469" (3/64) 25447-C3
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.0469" (3/64)

Zoro # G7255887
Mfr # 25447-C3
product price:  $59.99
/ea
Harvey Tool Counterbores - Flat Bottom 23409-C6
Harvey Tool

Counterbores - Flat Bottom

Zoro # G604195383
Mfr # 23409-C6
product price:  $45.35
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.1094" (7/64) 25507-C3
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.1094" (7/64)

Zoro # G7247767
Mfr # 25507-C3
product price:  $56.59
/ea
Harvey Tool 0.3320'' Cutter DIA x 1.0000'', 1 Flute Length - 4 FL 23731
Harvey Tool

0.3320'' Cutter DIA x 1.0000'', 1 Flute Length - 4 FL

Zoro # G113082129
Mfr # 23731
product price:  $74.59
/ea
Harvey Tool Counterbores - Flat Bottom, 0.2362" 2346M-C6
Harvey Tool

Counterbores - Flat Bottom, 0.2362"

Zoro # G7255850
Mfr # 2346M-C6
product price:  $65.25
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.0394" 2541M-C3
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.0394"

Zoro # G7161037
Mfr # 2541M-C3
product price:  $59.99
/ea
Harvey Tool Counterbores - Flat Bottom 23420-C6
Harvey Tool

Counterbores - Flat Bottom

Zoro # G804195442
Mfr # 23420-C6
product price:  $72.59
/ea
Scientific Cutting Tools Port Tool, RPT, Reamer, 7/32-28 UNJF RPT-2
Scientific Cutting Tools

Port Tool, RPT, Reamer, 7/32-28 UNJF

Zoro # G8115405
Mfr # RPT-2
product price:  $218.99
/ea
Harvey Tool Counterbores - Flat Bottom, 0.1875" (3/16), Overall Length: 2" 23412-C6
Harvey Tool

Counterbores - Flat Bottom, 0.1875" (3/16), Overall Length: 2"

Zoro # G7153206
Mfr # 23412-C6
product price:  $50.65
/ea
Harvey Tool 0.2900'' Cutter DIA x 0.8750'', 7/8 Flute Length - 4 FL 23689
Harvey Tool

0.2900'' Cutter DIA x 0.8750'', 7/8 Flute Length - 4 FL

Zoro # G913082206
Mfr # 23689
product price:  $62.25
/ea
Harvey Tool 0.1750'' Cutter DIA x 0.6250'', 5/8 Flute Length - 4 FL 23574
Harvey Tool

0.1750'' Cutter DIA x 0.6250'', 5/8 Flute Length - 4 FL

Zoro # G413081570
Mfr # 23574
product price:  $36.89
/ea
Harvey Tool Counterbores - Flat Bottom 23320
Harvey Tool

Counterbores - Flat Bottom

Zoro # G601022507
Mfr # 23320
product price:  $42.19
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.1562" (5/32) 25510-C3
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.1562" (5/32)

Zoro # G7255415
Mfr # 25510-C3
product price:  $70.95
/ea
Harvey Tool Counterbores - Flat Bottom 23380-C3
Harvey Tool

Counterbores - Flat Bottom

Zoro # G201018894
Mfr # 23380-C3
product price:  $47.95
/ea
Scientific Cutting Tools Port Tool, RPT, Reamer, 13/16-20 UNJEF RPT-12
Scientific Cutting Tools

Port Tool, RPT, Reamer, 13/16-20 UNJEF

Zoro # G7965054
Mfr # RPT-12
product price:  $245.99
/ea
Harvey Tool Counterbores - Flat Bottom, 0.2969" (19/64) 23419-C3
Harvey Tool

Counterbores - Flat Bottom, 0.2969" (19/64)

Zoro # G7151395
Mfr # 23419-C3
product price:  $78.15
/ea
Harvey Tool Counterbores - Flat Bottom 2345M-C6
Harvey Tool

Counterbores - Flat Bottom

Zoro # G904195397
Mfr # 2345M-C6
product price:  $55.59
/ea
Harvey Tool Counterbores - Flat Bottom, 0.1181" 2343M-C6
Harvey Tool

Counterbores - Flat Bottom, 0.1181"

Zoro # G7161387
Mfr # 2343M-C6
product price:  $51.65
/ea
Porting Tools & Counterbores (995 items) - Page 7
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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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