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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 18

Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.1181" 2553M-C3
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.1181"

Zoro # G7249620
Mfr # 2553M-C3
product price: 
$71.19
/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: 
$59.49
/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
Keo Counterbore, Metric, 71 mm 902-000-219
Keo

Counterbore, Metric, 71 mm

Zoro # G621726607
Mfr # 902-000-219
product price: 
$62.29
/ea
Drill America 7/8" X 7/16" Pilots for Counterbore DEWPIL7/8X7/16
Drill America

7/8" X 7/16" Pilots for Counterbore

Zoro # G1744394
Mfr # DEWPIL7/8X7/16
product price: 
$16.79
/ea
Keo Counterbore, Metric, 100 mm 902-000-255
Keo

Counterbore, Metric, 100 mm

Zoro # G521726073
Mfr # 902-000-255
product price: 
$98.89
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.4375" (7/16) 25528-C3
Harvey Tool

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

Zoro # G7265504
Mfr # 25528-C3
product price: 
$192.99
/ea
Keo Counterbore, Decimal Inch, 3 in 902-000-102
Keo

Counterbore, Decimal Inch, 3 in

Zoro # G221725055
Mfr # 902-000-102
product price: 
$63.69
/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
Keo Counterbore, Metric, 80 mm 902-000-240
Keo

Counterbore, Metric, 80 mm

Zoro # G421726678
Mfr # 902-000-240
product price: 
$75.39
/ea
Garant Counterbore for Tapping Drill Holes, 180 Deg, Uncoated, 20X10.2 mm 156220 20X10,2
Garant

Counterbore for Tapping Drill Holes, 180 Deg, Uncoated, 20X10.2 mm

Zoro # G114376036
Mfr # 156220 20X10,2
product price: 
$50.65
/ea
Keo Counterbore, Decimal Inch, 3 in 902-000-087
Keo

Counterbore, Decimal Inch, 3 in

Zoro # G321727355
Mfr # 902-000-087
product price: 
$59.39
/ea
Keo Counterbore, Decimal Inch, 5 in 902-000-312
Keo

Counterbore, Decimal Inch, 5 in

Zoro # G021726719
Mfr # 902-000-312
product price: 
$110.99
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.2656" (17/64) 25517
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.2656" (17/64)

Zoro # G7245439
Mfr # 25517
product price: 
$129.99
/ea
Harvey Tool Counterbores - Flat Bottom, 0.2656" (17/64) 23417
Harvey Tool

Counterbores - Flat Bottom, 0.2656" (17/64)

Zoro # G7153215
Mfr # 23417
product price: 
$86.15
/ea
Harvey Tool Counterbores - Flat Bottom, 0.1250" (1/8) 23408-C6
Harvey Tool

Counterbores - Flat Bottom, 0.1250" (1/8)

Zoro # G7154186
Mfr # 23408-C6
product price: 
$61.39
/ea
Harvey Tool Counterbores - Flat Bottom, 0.2812" (9/32), Number of Flutes: 4 23418
Harvey Tool

Counterbores - Flat Bottom, 0.2812" (9/32), Number of Flutes: 4

Zoro # G7152460
Mfr # 23418
product price: 
$82.19
/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
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
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.2969" (19/64) 25519
Harvey Tool

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

Zoro # G7161536
Mfr # 25519
product price: 
$129.99
/ea
Harvey Tool Counterbores - Flat Bottom, 0.4724" 23476-C3
Harvey Tool

Counterbores - Flat Bottom, 0.4724"

Zoro # G7253988
Mfr # 23476-C3
product price: 
$174.99
/ea
Harvey Tool Counterbores - Flat Bottom, 0.2656" (17/64) 23417-C3
Harvey Tool

Counterbores - Flat Bottom, 0.2656" (17/64)

Zoro # G7149575
Mfr # 23417-C3
product price: 
$97.15
/ea
Keo Counterbore, Close Fit, Size 7/8, Cobalt 902-000-037
Keo

Counterbore, Close Fit, Size 7/8, Cobalt

Zoro # G1600033
Mfr # 902-000-037
product price: 
$322.99
/ea
Keo Counterbore, Decimal Inch, 3 in 902-000-105
Keo

Counterbore, Decimal Inch, 3 in

Zoro # G121725889
Mfr # 902-000-105
product price: 
$64.49
/ea
Harvey Tool Counterbores - Flat Bottom, 0.0900" 23390
Harvey Tool

Counterbores - Flat Bottom, 0.0900"

Zoro # G7253954
Mfr # 23390
product price: 
$51.29
/ea
Keo Counterbore, Decimal Inch, 3 in 902-000-333
Keo

Counterbore, Decimal Inch, 3 in

Zoro # G421725886
Mfr # 902-000-333
product price: 
$57.29
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.2500" (1/4) 25516
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.2500" (1/4)

Zoro # G7242998
Mfr # 25516
product price: 
$99.99
/ea
Keo Counterbore, Decimal Inch, 7 in 902-000-174
Keo

Counterbore, Decimal Inch, 7 in

Zoro # G221725512
Mfr # 902-000-174
product price: 
$258.99
/ea
Harvey Tool Counterbores - Flat Bottom, 0.6250" (5/8) 23440
Harvey Tool

Counterbores - Flat Bottom, 0.6250" (5/8)

Zoro # G7158964
Mfr # 23440
product price: 
$252.99
/ea
Harvey Tool Counterbores - Flat Bottom, 0.2500" (1/4), Material - Machining: Carbide 23416
Harvey Tool

Counterbores - Flat Bottom, 0.2500" (1/4), Material - Machining: Carbide

Zoro # G7153924
Mfr # 23416
product price: 
$67.29
/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
Harvey Tool Counterbores - Flat Bottom, 0.0700", Flute Length: 0.2800" 23370
Harvey Tool

Counterbores - Flat Bottom, 0.0700", Flute Length: 0.2800"

Zoro # G7154280
Mfr # 23370
product price: 
$51.29
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.2812" (9/32) 25518
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.2812" (9/32)

Zoro # G7263176
Mfr # 25518
product price: 
$117.99
/ea
Keo Counterbore, Decimal Inch, 5 in 902-000-307
Keo

Counterbore, Decimal Inch, 5 in

Zoro # G821726605
Mfr # 902-000-307
product price: 
$127.99
/ea
Harvey Tool 0.1750'' Cutter DIA x 0.6250'', 5/8 Flute Length - 4 FL - AlTiN Coated 23574-C3
Harvey Tool

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

Zoro # G813081699
Mfr # 23574-C3
product price: 
$52.19
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.0787" 2542M
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.0787"

Zoro # G7160459
Mfr # 2542M
product price: 
$62.69
/ea
Porting Tools & Counterbores (993 items) - Page 18
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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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