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  1. Home
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  5. Cutting Tools
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  7. Porting Tools & Counterbores

Porting Tools & Counterbores (993 items) - Page 27

Harvey Tool Counterbores - Flat Bottom, 0.1719" (11/64) 23411-C3
Harvey Tool

Counterbores - Flat Bottom, 0.1719" (11/64)

Zoro # G7152515
Mfr # 23411-C3
product price: 
$56.45
/ea
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
Keo Counterbore, Decimal Inch, 3 in 902-000-330
Keo

Counterbore, Decimal Inch, 3 in

Zoro # G621725716
Mfr # 902-000-330
product price: 
$61.49
/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
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.2969" (19/64) 25519-C3
Harvey Tool

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

Zoro # G7167109
Mfr # 25519-C3
product price: 
$142.99
/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
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.1719" (11/64) 25511-C3
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.1719" (11/64)

Zoro # G7242885
Mfr # 25511-C3
product price: 
$85.79
/ea
Cleveland Counterbore, 1.375" L, 0.156" dia., Bright C46555
Cleveland

Counterbore, 1.375" L, 0.156" dia., Bright

Zoro # G4846611
Mfr # C46555
product price: 
$30.15
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.1968" 2555M-C3
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.1968"

Zoro # G7164878
Mfr # 2555M-C3
product price: 
$121.99
/ea
Kodiak Cutting Tools 7/16 Counterbore 1/64 Oversize Capscrew Style 5495897
Kodiak Cutting Tools

7/16 Counterbore 1/64 Oversize Capscrew Style

Zoro # G8630109
Mfr # 5495897
product price: 
$84.55
/ea
Internal Tool A Nc-265-312 N/C Counterbore 85-2651
Internal Tool

A Nc-265-312 N/C Counterbore

Zoro # G000402450
Mfr # 85-2651
product price: 
$80.79
/ea
Cleveland Counterbore, 1.500" L, 0.094" dia., Bright C46570
Cleveland

Counterbore, 1.500" L, 0.094" dia., Bright

Zoro # G4880132
Mfr # C46570
product price: 
$31.29
/ea
Cleveland Port Tool, 5.375" L, 0.500" dia., Bright C46438
Cleveland

Port Tool, 5.375" L, 0.500" dia., Bright

Zoro # G4850662
Mfr # C46438
product price: 
$177.99
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.1875" (3/16), Number of Flutes: 4 25512
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.1875" (3/16), Number of Flutes: 4

Zoro # G7260945
Mfr # 25512
product price: 
$81.69
/ea
Keo Counterbore, Decimal Inch, 3 in 902-000-324
Keo

Counterbore, Decimal Inch, 3 in

Zoro # G721726408
Mfr # 902-000-324
product price: 
$71.15
/ea
Keo Counterbore, Close Fit, Size No 5, Cobalt 902-000-004
Keo

Counterbore, Close Fit, Size No 5, Cobalt

Zoro # G0806881
Mfr # 902-000-004
product price: 
$56.99
/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: 
$23.99
/ea
Harvey Tool 1/2 in. Cutter dia. x 1 in. 1 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, TiB2 Coated 23432-C8
Harvey Tool

1/2 in. Cutter dia. x 1 in. 1 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, TiB2 Coated

Zoro # G811324668
Mfr # 23432-C8
product price: 
$176.99
/ea
Cleveland Counterbore, 5.750" L, 0.375" dia., Bright C92704
Cleveland

Counterbore, 5.750" L, 0.375" dia., Bright

Zoro # G4857857
Mfr # C92704
product price: 
$130.99
/ea
Link #6 HSS Se .150 X .250 Drill .242 Cbore 3/16 Shank 1-7/32 Oal 50-L2-181
Link

#6 HSS Se .150 X .250 Drill .242 Cbore 3/16 Shank 1-7/32 Oal

Zoro # G7639986
Mfr # 50-L2-181
product price: 
$20.89
/ea
Kodiak Cutting Tools No. 3/4 Counterbores 1/32 Oversize Capscrew Style 5496084
Kodiak Cutting Tools

No. 3/4 Counterbores 1/32 Oversize Capscrew Style

Zoro # G8645000
Mfr # 5496084
product price: 
$190.99
/ea
Kodiak Cutting Tools No. 5/8 Counterbores 1/32 Oversize Capscrew Style 5496073
Kodiak Cutting Tools

No. 5/8 Counterbores 1/32 Oversize Capscrew Style

Zoro # G8631886
Mfr # 5496073
product price: 
$164.99
/ea
Super Tool Counterbore, 7/8" D, Carbide Tipped 56411
Super Tool

Counterbore, 7/8" D, Carbide Tipped

Zoro # G0330117
Mfr # 56411
product price: 
$136.99
/ea
Garant Counterbore with Interchangeable Pilot Pins, 15 mm 156520 15
Garant

Counterbore with Interchangeable Pilot Pins, 15 mm

Zoro # G414389903
Mfr # 156520 15
product price: 
$103.99
/ea
Super Tool Reduced Shank Counterbore, 1-3/8" D 52244
Super Tool

Reduced Shank Counterbore, 1-3/8" D

Zoro # G0331307
Mfr # 52244
product price: 
$198.99
/ea
Link 4MM Co 3Fl 4.8 Pilot X 7.8 Cbore 6.35 Shank X 100 Oal 75-CO-521
Link

4MM Co 3Fl 4.8 Pilot X 7.8 Cbore 6.35 Shank X 100 Oal

Zoro # G7638839
Mfr # 75-CO-521
product price: 
$66.95
/ea
Garant Counterbore for Through Holes, 180 Deg, Uncoated, 10X5.3 mm 156020 10X5,3
Garant

Counterbore for Through Holes, 180 Deg, Uncoated, 10X5.3 mm

Zoro # G614389642
Mfr # 156020 10X5,3
product price: 
$22.35
/ea
Harvey Tool Counterbores - Flat Bottom, 0.3937" 2340M-C3
Harvey Tool

Counterbores - Flat Bottom, 0.3937"

Zoro # G7150975
Mfr # 2340M-C3
product price: 
$138.99
/ea
Cleveland Port Tool, 6.375" L, 0.750" dia., Bright C46447
Cleveland

Port Tool, 6.375" L, 0.750" dia., Bright

Zoro # G4797033
Mfr # C46447
product price: 
$261.99
/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
Super Tool Reduced Shank Counterbore, 15/16" D 52230
Super Tool

Reduced Shank Counterbore, 15/16" D

Zoro # G0331237
Mfr # 52230
product price: 
$111.99
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.2187" (7/32), Number of Flutes: 4 25514
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.2187" (7/32), Number of Flutes: 4

Zoro # G7261444
Mfr # 25514
product price: 
$105.99
/ea
Super Tool Reduced Shank Counterbore, 1-1/16" D 52234
Super Tool

Reduced Shank Counterbore, 1-1/16" D

Zoro # G0331261
Mfr # 52234
product price: 
$170.99
/ea
Harvey Tool Counterbores - Flat Bottom, 0.3437" (11/32), Flute Length: 1" 23422
Harvey Tool

Counterbores - Flat Bottom, 0.3437" (11/32), Flute Length: 1"

Zoro # G7150984
Mfr # 23422
product price: 
$99.39
/ea
Harvey Tool Counterbores - Flat Bottom, 0.0787" 2332M-C3
Harvey Tool

Counterbores - Flat Bottom, 0.0787"

Zoro # G7257856
Mfr # 2332M-C3
product price: 
$59.99
/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
Porting Tools & Counterbores (993 items) - Page 27
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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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