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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 5

Harvey Tool Counterbores - Flat Bottom 23350
Harvey Tool

Counterbores - Flat Bottom

Zoro # G201019020
Mfr # 23350
product price: 
$51.25
/ea
Harvey Tool 1/8 in. Cutter dia. x 1/2 in. Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, AlTiN Coated 731608-C3
Harvey Tool

1/8 in. Cutter dia. x 1/2 in. Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, AlTiN Coated

Zoro # G911325152
Mfr # 731608-C3
product price: 
$63.19
/ea
Harvey Tool 1/16 Cutter dia. x 1/4 in. Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, TiB2 Coated 23362-C8
Harvey Tool

1/16 Cutter dia. x 1/4 in. Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, TiB2 Coated

Zoro # G711326380
Mfr # 23362-C8
product price: 
$58.79
/ea
Drill America 3/4" 13/16" Continuous Pilot Capscrew Counterbore DEWCSCBR3/4
Drill America

3/4" 13/16" Continuous Pilot Capscrew Counterbore

Zoro # G1745295
Mfr # DEWCSCBR3/4
product price: 
$81.79
/ea
Harvey Tool Counterbores - Flat Bottom, 0.3750" (3/8), Finish - Machining: Uncoated 23424
Harvey Tool

Counterbores - Flat Bottom, 0.3750" (3/8), Finish - Machining: Uncoated

Zoro # G7150920
Mfr # 23424
product price: 
$99.39
/ea
Drill America No 5 .141 Continuous Pilot Capscrew Counterbore DEWCSCBR5
Drill America

No 5 .141 Continuous Pilot Capscrew Counterbore

Zoro # G1739640
Mfr # DEWCSCBR5
product price: 
$25.15
/ea
Garant Counterbore for Through Holes, 180 Deg, Uncoated, 8X4.5 mm 156020 8X4,5
Garant

Counterbore for Through Holes, 180 Deg, Uncoated, 8X4.5 mm

Zoro # G114389470
Mfr # 156020 8X4,5
product price: 
$19.79
/ea
Drill America 1/2" HSS Solid Counterbore DEWCBRSOL1/2
Drill America

1/2" HSS Solid Counterbore

Zoro # G1742154
Mfr # DEWCBRSOL1/2
product price: 
$26.15
/ea
Harvey Tool Counterbores - Flat Bottom, 0.4375" (7/16), Flute Length: 1" 23428
Harvey Tool

Counterbores - Flat Bottom, 0.4375" (7/16), Flute Length: 1"

Zoro # G7157485
Mfr # 23428
product price: 
$122.99
/ea
Garant Counterbore for Tapping Drill Holes, 180 Deg, Uncoated, 15X6.8 mm 156220 15X6,8
Garant

Counterbore for Tapping Drill Holes, 180 Deg, Uncoated, 15X6.8 mm

Zoro # G614375508
Mfr # 156220 15X6,8
product price: 
$39.55
/ea
Harvey Tool 0.2900'' Cutter DIA x 0.8750'', 7/8 Flute Length - 4 FL - AlTiN Coated 23689-C3
Harvey Tool

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

Zoro # G713082161
Mfr # 23689-C3
product price: 
$94.15
/ea
Harvey Tool Counterbores - Flat Bottom, 0.3594" (23/64), Material - Machining: Carbide 23423
Harvey Tool

Counterbores - Flat Bottom, 0.3594" (23/64), Material - Machining: Carbide

Zoro # G7155139
Mfr # 23423
product price: 
$98.29
/ea
Harvey Tool Counterbores - Flat Bottom, 0.2031" (13/64) 23413-C3
Harvey Tool

Counterbores - Flat Bottom, 0.2031" (13/64)

Zoro # G7153276
Mfr # 23413-C3
product price: 
$78.59
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.2031" (13/64), Overall Length: 4" 25513-C3
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.2031" (13/64), Overall Length: 4"

Zoro # G7262607
Mfr # 25513-C3
product price: 
$114.99
/ea
Garant Counterbore for Tapping Drill Holes, 180 Deg, Uncoated, 10X4.2 mm 156220 10X4,2
Garant

Counterbore for Tapping Drill Holes, 180 Deg, Uncoated, 10X4.2 mm

Zoro # G514375578
Mfr # 156220 10X4,2
product price: 
$23.65
/ea
Garant Counterbore for Through Holes, 180 Deg, Uncoated, 8X4.3 mm 156020 8X4,3
Garant

Counterbore for Through Holes, 180 Deg, Uncoated, 8X4.3 mm

Zoro # G014389464
Mfr # 156020 8X4,3
product price: 
$20.39
/ea
Garant Mini Counterbore for Through Holes, 180 Deg, Uncoated, 11.5X6.4 mm 155600 11,5X6,4
Garant

Mini Counterbore for Through Holes, 180 Deg, Uncoated, 11.5X6.4 mm

Zoro # G814389848
Mfr # 155600 11,5X6,4
product price: 
$41.95
/ea
Drill America 3/4" X 1/2" Pilots for Counterbore DEWPIL3/4X1/2
Drill America

3/4" X 1/2" Pilots for Counterbore

Zoro # G1741576
Mfr # DEWPIL3/4X1/2
product price: 
$11.45
/ea
Garant Counterbore for Tapping Drill Holes, 180 Deg, Uncoated, 6.5X2.9 mm 156220 6,5X2,9
Garant

Counterbore for Tapping Drill Holes, 180 Deg, Uncoated, 6.5X2.9 mm

Zoro # G814376060
Mfr # 156220 6,5X2,9
product price: 
$26.99
/ea
Garant Mini Counterbore for Through Holes, 180 Deg, Uncoated, 2.8X1.5 mm 155700 2,8X1,5
Garant

Mini Counterbore for Through Holes, 180 Deg, Uncoated, 2.8X1.5 mm

Zoro # G514389629
Mfr # 155700 2,8X1,5
product price: 
$32.15
/ea
Harvey Tool 0.4220'', 27/64 Cutter DIA x 1.0000'', 1 Flute Length - 4 FL - AlTiN Coated 23427-C3
Harvey Tool

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

Zoro # G413081587
Mfr # 23427-C3
product price: 
$138.99
/ea
Scientific Cutting Tools Port Tool, RPT, Reamer, 9/16-18 UNJF RPT-8
Scientific Cutting Tools

Port Tool, RPT, Reamer, 9/16-18 UNJF

Zoro # G8147063
Mfr # RPT-8
product price: 
$282.99
/ea
Scientific Cutting Tools Port Tool, MS33649, Reamer, 3/8-24 UNJF MS33649-3R
Scientific Cutting Tools

Port Tool, MS33649, Reamer, 3/8-24 UNJF

Zoro # G8163811
Mfr # MS33649-3R
product price: 
$227.99
/ea
Scientific Cutting Tools Port Tool, MS33649, Reamer, 9/16-18 UNJF MS33649-6R
Scientific Cutting Tools

Port Tool, MS33649, Reamer, 9/16-18 UNJF

Zoro # G7834565
Mfr # MS33649-6R
product price: 
$290.99
/ea
Scientific Cutting Tools Port Tool, 2-1/2"-12, 2-1/2 in, Straight MS16142-32R
Scientific Cutting Tools

Port Tool, 2-1/2"-12, 2-1/2 in, Straight

Zoro # G8077185
Mfr # MS16142-32R
product price: 
$631.99
/ea
Kodiak Cutting Tools No. 5/16 Counterbores 1/32 Oversize Capscrew Style 5496029
Kodiak Cutting Tools

No. 5/16 Counterbores 1/32 Oversize Capscrew Style

Zoro # G8644985
Mfr # 5496029
product price: 
$68.29
/ea
Super Tool Counterbore, 1/2" D, Carbide Tipped 59805
Super Tool

Counterbore, 1/2" D, Carbide Tipped

Zoro # G0329977
Mfr # 59805
product price: 
$112.99
/ea
Super Tool Reduced Shank Counterbore, 1-9/16" D 52250
Super Tool

Reduced Shank Counterbore, 1-9/16" D

Zoro # G0331587
Mfr # 52250
product price: 
$232.99
/ea
Harvey Tool Counterbores - Flat Bottom 23411-C6
Harvey Tool

Counterbores - Flat Bottom

Zoro # G804195398
Mfr # 23411-C6
product price: 
$61.49
/ea
Super Tool Counterbore, 23/32" D, Carbide Tipped 5797188
Super Tool

Counterbore, 23/32" D, Carbide Tipped

Zoro # G0330071
Mfr # 5797188
product price: 
$122.99
/ea
Super Tool Counterbore, 1-3/16" D, Carbide Tipped 56416
Super Tool

Counterbore, 1-3/16" D, Carbide Tipped

Zoro # G0329843
Mfr # 56416
product price: 
$154.99
/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 Ua7-14MM Metric Shcs HSS Counterbore 72-L2-517
Link

Ua7-14MM Metric Shcs HSS Counterbore

Zoro # G7646898
Mfr # 72-L2-517
product price: 
$49.75
/ea
Link Ua7-7/16 English Shcs HSS Counterbore 60-L2-300
Link

Ua7-7/16 English Shcs HSS Counterbore

Zoro # G7641316
Mfr # 60-L2-300
product price: 
$44.25
/ea
Garant Interchangeable Pilot Pin for Counterbore 156520 15, 6.8 mm 156620 4X6,8
Garant

Interchangeable Pilot Pin for Counterbore 156520 15, 6.8 mm

Zoro # G514389711
Mfr # 156620 4X6,8
product price: 
$27.25
/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
Porting Tools & Counterbores (993 items) - Page 5
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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

Drill BitsTapsHole Saws & CuttersReamersWrenches
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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