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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 19

Internal Tool A Nc-171-187 N/C Counterbore 85-1711
Internal Tool

A Nc-171-187 N/C Counterbore

Zoro # G300402433
Mfr # 85-1711
product price: 
$49.15
/ea
Kodiak Cutting Tools No. 5 Counterbores 1/32 Oversize Capscrew Style 5495974
Kodiak Cutting Tools

No. 5 Counterbores 1/32 Oversize Capscrew Style

Zoro # G8640986
Mfr # 5495974
product price: 
$43.85
/ea
Super Tool Counterbore, 1-5/8" D, Carbide Tipped 56423
Super Tool

Counterbore, 1-5/8" D, Carbide Tipped

Zoro # G0329837
Mfr # 56423
product price: 
$257.99
/ea
Super Tool Reduced Shank Counterbore, 1-1/8" D 52236
Super Tool

Reduced Shank Counterbore, 1-1/8" D

Zoro # G0331593
Mfr # 52236
product price: 
$185.99
/ea
Internal Tool A Nc-219-250 N/C Counterbore 85-2191
Internal Tool

A Nc-219-250 N/C Counterbore

Zoro # G900402406
Mfr # 85-2191
product price: 
$57.99
/ea
Link #6 3Xd HSS Se .150 X .450 Drill .242 Cbore 1/4 Shank 2 Oal 50-L2-381
Link

#6 3Xd HSS Se .150 X .450 Drill .242 Cbore 1/4 Shank 2 Oal

Zoro # G7644877
Mfr # 50-L2-381
product price: 
$32.55
/ea
Morse Cap Screw Counterbore, Straight Shank, Series 1766, 8 mm Screw, 05315 Bore Dia, 612 Overall Le 25750
Morse

Cap Screw Counterbore, Straight Shank, Series 1766, 8 mm Screw, 05315 Bore Dia, 612 Overall Le

Zoro # G608029127
Mfr # 25750
product price: 
$89.95
/ea
Garant Interchangeable Pilot Pin for Counterbore 156520 26-30, 10.2 mm 156620 8X10,2
Garant

Interchangeable Pilot Pin for Counterbore 156520 26-30, 10.2 mm

Zoro # G614389697
Mfr # 156620 8X10,2
product price: 
$39.75
/ea
Keo Counterbore, Decimal Inch, 4-1/2 in 902-000-317
Keo

Counterbore, Decimal Inch, 4-1/2 in

Zoro # G621725921
Mfr # 902-000-317
product price: 
$82.59
/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
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
Scientific Cutting Tools Port Tool, MS16142, Solid, 5/16-24 UNF MS16142-2S
Scientific Cutting Tools

Port Tool, MS16142, Solid, 5/16-24 UNF

Zoro # G7922397
Mfr # MS16142-2S
product price: 
$217.99
/ea
Scientific Cutting Tools Port Tool, MS33649, Solid, 3/8-24 UNJF MS33649-3S
Scientific Cutting Tools

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

Zoro # G8216835
Mfr # MS33649-3S
product price: 
$227.99
/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
Scientific Cutting Tools Port Tool, MS33649, Reamer, 5/16-24 UNJF MS33649-2R
Scientific Cutting Tools

Port Tool, MS33649, Reamer, 5/16-24 UNJF

Zoro # G8208864
Mfr # MS33649-2R
product price: 
$213.99
/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, 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
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, 0.1875" (3/16) 23412
Harvey Tool

Counterbores - Flat Bottom, 0.1875" (3/16)

Zoro # G7151149
Mfr # 23412
product price: 
$49.15
/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
Keo Counterbore, 1/64 Clearance, Size No 10, Co 902-000-014
Keo

Counterbore, 1/64 Clearance, Size No 10, Co

Zoro # G1024082
Mfr # 902-000-014
product price: 
$75.19
/ea
Harvey Tool Counterbores - Flat Bottom, 0.1562" (5/32) 23410-C3
Harvey Tool

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

Zoro # G7155306
Mfr # 23410-C3
product price: 
$58.29
/ea
Harvey Tool Counterbores - Flat Bottom, 0.2031" (13/64) 23413
Harvey Tool

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

Zoro # G7150948
Mfr # 23413
product price: 
$67.29
/ea
Harvey Tool Counterbores - Flat Bottom, 0.2344" (15/64) 23415
Harvey Tool

Counterbores - Flat Bottom, 0.2344" (15/64)

Zoro # G7154019
Mfr # 23415
product price: 
$67.29
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.1875" (3/16) 25512-C3
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.1875" (3/16)

Zoro # G7260190
Mfr # 25512-C3
product price: 
$85.15
/ea
Harvey Tool Counterbores - Flat Bottom, 0.3750" (3/8) 23424-C6
Harvey Tool

Counterbores - Flat Bottom, 0.3750" (3/8)

Zoro # G7158885
Mfr # 23424-C6
product price: 
$119.99
/ea
Drill America 7/8" 15/16" Continuous Pilot Capscrew Counterbore DEWCSCBR7/8
Drill America

7/8" 15/16" Continuous Pilot Capscrew Counterbore

Zoro # G1739178
Mfr # DEWCSCBR7/8
product price: 
$120.99
/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
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.1250" (1/8) 25508-C3
Harvey Tool

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

Zoro # G7242894
Mfr # 25508-C3
product price: 
$71.89
/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
Harvey Tool Counterbores - Flat Bottom, 0.2812" (9/32) 23418-C3
Harvey Tool

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

Zoro # G7154116
Mfr # 23418-C3
product price: 
$97.15
/ea
Harvey Tool Counterbores - Flat Bottom, 0.4687" (15/32) 23430
Harvey Tool

Counterbores - Flat Bottom, 0.4687" (15/32)

Zoro # G7162105
Mfr # 23430
product price: 
$158.99
/ea
Harvey Tool Counterbores - Flat Bottom, 0.3125" (5/16), Finish - Machining: Uncoated 23420
Harvey Tool

Counterbores - Flat Bottom, 0.3125" (5/16), Finish - Machining: Uncoated

Zoro # G7149347
Mfr # 23420
product price: 
$82.89
/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: 
$23.99
/ea
Harvey Tool Counterbores - Flat Bottom, 0.4062" (13/32) 23426
Harvey Tool

Counterbores - Flat Bottom, 0.4062" (13/32)

Zoro # G7156730
Mfr # 23426
product price: 
$117.99
/ea
Drill America 1/4" 9/32" Continuous Pilot Capscrew Counterbore DEWCSCBR1/4
Drill America

1/4" 9/32" Continuous Pilot Capscrew Counterbore

Zoro # G1741740
Mfr # DEWCSCBR1/4
product price: 
$29.35
/ea
Porting Tools & Counterbores (993 items) - Page 19
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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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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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