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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 4

Scientific Cutting Tools Port Tool, MS33649, Solid, 1/2-20 UNJF MS33649-5S
Scientific Cutting Tools

Port Tool, MS33649, Solid, 1/2-20 UNJF

Zoro # G8037906
Mfr # MS33649-5S
product price: 
$231.99
/ea
Scientific Cutting Tools PortTool, 1-3/16"-12, 2-1/4in, Straight MS16142-14R
Scientific Cutting Tools

PortTool, 1-3/16"-12, 2-1/4in, Straight

Zoro # G8099795
Mfr # MS16142-14R
product price: 
$350.99
/ea
Super Tool Reduced Shank Counterbore, 1/4" D 52208
Super Tool

Reduced Shank Counterbore, 1/4" D

Zoro # G0331541
Mfr # 52208
product price: 
$72.49
/ea
Super Tool Counterbore, 1" D, Carbide Tipped 59813
Super Tool

Counterbore, 1" D, Carbide Tipped

Zoro # G0330309
Mfr # 59813
product price: 
$148.99
/ea
Drill America 5/16" HSS Solid Counterbore DEWCBRSOL5/16
Drill America

5/16" HSS Solid Counterbore

Zoro # G1741174
Mfr # DEWCBRSOL5/16
product price: 
$19.55
/ea
Drill America 1/4" HSS Solid Counterbore DEWCBRSOL1/4
Drill America

1/4" HSS Solid Counterbore

Zoro # G1744839
Mfr # DEWCBRSOL1/4
product price: 
$24.15
/ea
Garant Counterbore for Tapping Drill Holes, 180 Deg, Uncoated, 8X3.3 mm 156220 8X3,3
Garant

Counterbore for Tapping Drill Holes, 180 Deg, Uncoated, 8X3.3 mm

Zoro # G014376389
Mfr # 156220 8X3,3
product price: 
$24.29
/ea
Garant Counterbore for Tapping Drill Holes, 180 Deg, Uncoated, 6.5X2.5 mm 156220 6,5X2,5
Garant

Counterbore for Tapping Drill Holes, 180 Deg, Uncoated, 6.5X2.5 mm

Zoro # G714375965
Mfr # 156220 6,5X2,5
product price: 
$26.99
/ea
Keo Metric Counterbore Set DIN373 - Before Thread 902-000-067
Keo

Metric Counterbore Set DIN373 - Before Thread

Zoro # G8925454
Mfr # 902-000-067
product price: 
$457.99
/ea
Harvey Tool 0.1968 in. Cutter dia. x .75 in. 3/4 Carbide Flat Bottom Counterbore, 4 Flutes, TiB2 Coated 2345M-C8
Harvey Tool

0.1968 in. Cutter dia. x .75 in. 3/4 Carbide Flat Bottom Counterbore, 4 Flutes, TiB2 Coated

Zoro # G311324779
Mfr # 2345M-C8
product price: 
$78.59
/ea
Super Tool Counterbore, 1-1/8" D, Carbide Tipped 56415
Super Tool

Counterbore, 1-1/8" D, Carbide Tipped

Zoro # G0329940
Mfr # 56415
product price: 
$144.99
/ea
Super Tool Reduced Shank Counterbore, 1-3/4" D 52256
Super Tool

Reduced Shank Counterbore, 1-3/4" D

Zoro # G0331569
Mfr # 52256
product price: 
$233.99
/ea
Harvey Tool Counterbores - Flat Bottom 23330
Harvey Tool

Counterbores - Flat Bottom

Zoro # G301019968
Mfr # 23330
product price: 
$51.59
/ea
Super Tool Counterbore, 1-11/16" D, Carbide Tipped 56429
Super Tool

Counterbore, 1-11/16" D, Carbide Tipped

Zoro # G0329931
Mfr # 56429
product price: 
$333.99
/ea
Drill America No 4 .111mm Machine Screw Solid Counterbore DEWCBRSOL4
Drill America

No 4 .111mm Machine Screw Solid Counterbore

Zoro # G1746835
Mfr # DEWCBRSOL4
product price: 
$9.29
/ea
Link Ua5-1/4 English Shcs HSS Counterbore 60-L2-297
Link

Ua5-1/4 English Shcs HSS Counterbore

Zoro # G7644859
Mfr # 60-L2-297
product price: 
$29.29
/ea
Super Tool Reduced Shank Counterbore, 2" D 52264
Super Tool

Reduced Shank Counterbore, 2" D

Zoro # G0331438
Mfr # 52264
product price: 
$343.99
/ea
Super Tool Counterbore, 15/16" D, Carbide Tipped 59812
Super Tool

Counterbore, 15/16" D, Carbide Tipped

Zoro # G0330220
Mfr # 59812
product price: 
$153.99
/ea
Link Ua7-16MM Metric Shcs HSS Counterbore 72-L2-518
Link

Ua7-16MM Metric Shcs HSS Counterbore

Zoro # G7645884
Mfr # 72-L2-518
product price: 
$58.99
/ea
Harvey Tool Counterbores - Flat Bottom 23340
Harvey Tool

Counterbores - Flat Bottom

Zoro # G401019899
Mfr # 23340
product price: 
$51.79
/ea
Harvey Tool Counterbores - Flat Bottom 23340-C3
Harvey Tool

Counterbores - Flat Bottom

Zoro # G701019278
Mfr # 23340-C3
product price: 
$60.49
/ea
Harvey Tool 0.2187 in. 7/32 Cutter dia x 0.75in. 3/4 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes 731614
Harvey Tool

0.2187 in. 7/32 Cutter dia x 0.75in. 3/4 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes

Zoro # G511325170
Mfr # 731614
product price: 
$70.69
/ea
Super Tool Counterbore, 5/8" D, Carbide Tipped 56407
Super Tool

Counterbore, 5/8" D, Carbide Tipped

Zoro # G0330010
Mfr # 56407
product price: 
$112.99
/ea
Super Tool Counterbore, 1-15/16" D, Carbide Tipped 56427
Super Tool

Counterbore, 1-15/16" D, Carbide Tipped

Zoro # G0330038
Mfr # 56427
product price: 
$445.99
/ea
Garant Counterbore Set in a Case, 6 Pieces, Type: DF 156420 DF
Garant

Counterbore Set in a Case, 6 Pieces, Type: DF

Zoro # G009578484
Mfr # 156420 DF
product price: 
$200.99
/ea
Link 5/16" 3Xd HSS Se .340 X 1.020 Drill .490 Cbore 1/2 Shank 3 Oal 50-L2-385
Link

5/16" 3Xd HSS Se .340 X 1.020 Drill .490 Cbore 1/2 Shank 3 Oal

Zoro # G7637344
Mfr # 50-L2-385
product price: 
$57.45
/ea
Garant Counterbore with Interchangeable Pilot Pins, 36 mm 156520 36
Garant

Counterbore with Interchangeable Pilot Pins, 36 mm

Zoro # G614389840
Mfr # 156520 36
product price: 
$224.99
/ea
Super Tool Counterbore, 15/16" D, Carbide Tipped 56412
Super Tool

Counterbore, 15/16" D, Carbide Tipped

Zoro # G0329959
Mfr # 56412
product price: 
$158.99
/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: 
$58.79
/ea
Harvey Tool Counterbores - Flat Bottom 23380
Harvey Tool

Counterbores - Flat Bottom

Zoro # G901019214
Mfr # 23380
product price: 
$50.15
/ea
Harvey Tool 1/4 in. Cutter dia. x7/8 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, AlTiN Coated 731616-C3
Harvey Tool

1/4 in. Cutter dia. x7/8 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, AlTiN Coated

Zoro # G111325242
Mfr # 731616-C3
product price: 
$79.89
/ea
Harvey Tool 0.1875 in. 3/16 Cutter dia x 0.75in. 3/4 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes 731612
Harvey Tool

0.1875 in. 3/16 Cutter dia x 0.75in. 3/4 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes

Zoro # G111325082
Mfr # 731612
product price: 
$52.39
/ea
Super Tool Counterbore, 1-3/4" D, Carbide Tipped 56424
Super Tool

Counterbore, 1-3/4" D, Carbide Tipped

Zoro # G0329651
Mfr # 56424
product price: 
$294.99
/ea
Super Tool Counterbore, 3/4" D, Carbide Tipped 56409
Super Tool

Counterbore, 3/4" D, Carbide Tipped

Zoro # G0330080
Mfr # 56409
product price: 
$127.99
/ea
Super Tool Reduced Shank Counterbore, 1-1/2" D 52248
Super Tool

Reduced Shank Counterbore, 1-1/2" D

Zoro # G0331578
Mfr # 52248
product price: 
$215.99
/ea
Harvey Tool Counterbores - Flat Bottom 23350-C3
Harvey Tool

Counterbores - Flat Bottom

Zoro # G401019455
Mfr # 23350-C3
product price: 
$59.59
/ea
Porting Tools & Counterbores (993 items) - Page 4
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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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