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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 22

Keo Counterbore, Decimal Inch, 4-1/2 in 902-000-114
Keo

Counterbore, Decimal Inch, 4-1/2 in

Zoro # G821726896
Mfr # 902-000-114
product price: 
$70.69
/ea
Harvey Tool 0.0937 in. 3/32 Cutter dia. x 3/8 in. Carbide Flat Bottom Counterbore, 4 Flutes, AlTiN Coated 731593-C3
Harvey Tool

0.0937 in. 3/32 Cutter dia. x 3/8 in. Carbide Flat Bottom Counterbore, 4 Flutes, AlTiN Coated

Zoro # G411325058
Mfr # 731593-C3
product price: 
$63.29
/ea
Keo Counterbore, Decimal Inch, 4-1/2 in 902-000-117
Keo

Counterbore, Decimal Inch, 4-1/2 in

Zoro # G721727269
Mfr # 902-000-117
product price: 
$73.39
/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 9/32 in. Cutter dia. x7/8 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, AlTiN Coated 731618-C3
Harvey Tool

9/32 in. Cutter dia. x7/8 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, AlTiN Coated

Zoro # G611325216
Mfr # 731618-C3
product price: 
$99.89
/ea
Keo Counterbore, Decimal Inch, 4-1/2 in 902-000-123
Keo

Counterbore, Decimal Inch, 4-1/2 in

Zoro # G621726300
Mfr # 902-000-123
product price: 
$68.29
/ea
Harvey Tool Counterbores - Flat Bottom 23432-C6
Harvey Tool

Counterbores - Flat Bottom

Zoro # G504195384
Mfr # 23432-C6
product price: 
$182.99
/ea
Harvey Tool 0.1250 in. 1/8 Cutter dia x 1/2 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes 731608
Harvey Tool

0.1250 in. 1/8 Cutter dia x 1/2 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes

Zoro # G911324988
Mfr # 731608
product price: 
$54.79
/ea
Keo Counterbore, Decimal Inch, 4-1/2 in 902-000-111
Keo

Counterbore, Decimal Inch, 4-1/2 in

Zoro # G321727119
Mfr # 902-000-111
product price: 
$67.69
/ea
Harvey Tool Counterbores - Flat Bottom, 0.0700" 23370-C3
Harvey Tool

Counterbores - Flat Bottom, 0.0700"

Zoro # G7149365
Mfr # 23370-C3
product price: 
$58.49
/ea
Harvey Tool 0.3125 in. 5/16 Cutter dia x 1.00in. 1 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes 731620
Harvey Tool

0.3125 in. 5/16 Cutter dia x 1.00in. 1 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes

Zoro # G011325267
Mfr # 731620
product price: 
$86.29
/ea
Harvey Tool 5/32 Cutter dia. x 0.6250 in. 5/8 Carbide Flat Bottom Counterbore, 4 Flutes, AlTiN Coated 731610-C3
Harvey Tool

5/32 Cutter dia. x 0.6250 in. 5/8 Carbide Flat Bottom Counterbore, 4 Flutes, AlTiN Coated

Zoro # G411325119
Mfr # 731610-C3
product price: 
$61.15
/ea
Harvey Tool 0.5000 in. 1/2 Cutter dia x 1.0000 in. 1 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes 731632
Harvey Tool

0.5000 in. 1/2 Cutter dia x 1.0000 in. 1 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes

Zoro # G011325441
Mfr # 731632
product price: 
$164.99
/ea
Keo Counterbore, Decimal Inch, 4-1/2 in 902-000-316
Keo

Counterbore, Decimal Inch, 4-1/2 in

Zoro # G921726161
Mfr # 902-000-316
product price: 
$77.59
/ea
Scientific Cutting Tools PortTool, 1-5/16"-12, 2-1/4in, Straight MS33649-16S
Scientific Cutting Tools

PortTool, 1-5/16"-12, 2-1/4in, Straight

Zoro # G8153957
Mfr # MS33649-16S
product price: 
$348.99
/ea
Scientific Cutting Tools Port Tool, MS33649, Reamer, 1/4-28 UNJF MS33649-1R
Scientific Cutting Tools

Port Tool, MS33649, Reamer, 1/4-28 UNJF

Zoro # G8170136
Mfr # MS33649-1R
product price: 
$307.99
/ea
Scientific Cutting Tools Port Tool, RPT, Reamer, 1/4-28 UNJF RPT-3
Scientific Cutting Tools

Port Tool, RPT, Reamer, 1/4-28 UNJF

Zoro # G7863694
Mfr # RPT-3
product price: 
$353.99
/ea
Scientific Cutting Tools Port Tool, RPT, Reamer, 3/8-24 UNJF RPT-5
Scientific Cutting Tools

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

Zoro # G8145006
Mfr # RPT-5
product price: 
$282.99
/ea
Scientific Cutting Tools Port Tool, MS33649, Solid, 3/4-16 UNJF MS33649-8S
Scientific Cutting Tools

Port Tool, MS33649, Solid, 3/4-16 UNJF

Zoro # G8174135
Mfr # MS33649-8S
product price: 
$256.99
/ea
Scientific Cutting Tools Port Tool, 1-7/8"-12, 2-1/4 in, Straight MS16142-24S
Scientific Cutting Tools

Port Tool, 1-7/8"-12, 2-1/4 in, Straight

Zoro # G8070343
Mfr # MS16142-24S
product price: 
$539.99
/ea
Scientific Cutting Tools Port Tool, RPT, Reamer, 1 5/16-18 UNJF RPT-20
Scientific Cutting Tools

Port Tool, RPT, Reamer, 1 5/16-18 UNJF

Zoro # G8012916
Mfr # RPT-20
product price: 
$435.99
/ea
Scientific Cutting Tools Port Tool, MS16142, Reamer, 1/2-20 UNF MS16142-5R
Scientific Cutting Tools

Port Tool, MS16142, Reamer, 1/2-20 UNF

Zoro # G8233766
Mfr # MS16142-5R
product price: 
$259.99
/ea
Scientific Cutting Tools PortTool, 1-1/16"-12, 2-1/8in, Straight MS33649-12S
Scientific Cutting Tools

PortTool, 1-1/16"-12, 2-1/8in, Straight

Zoro # G7855041
Mfr # MS33649-12S
product price: 
$338.99
/ea
Scientific Cutting Tools Port Tool, RPT, Reamer, 13/16-20 UNJEF RPT-12
Scientific Cutting Tools

Port Tool, RPT, Reamer, 13/16-20 UNJEF

Zoro # G7965054
Mfr # RPT-12
product price: 
$287.99
/ea
Scientific Cutting Tools Port Tool, RPT, Reamer, 7/16-20 UNJF RPT-6
Scientific Cutting Tools

Port Tool, RPT, Reamer, 7/16-20 UNJF

Zoro # G7999293
Mfr # RPT-6
product price: 
$301.99
/ea
Scientific Cutting Tools PortTool, 1-3/16"-12, 2-1/4in, Straight MS33649-14S
Scientific Cutting Tools

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

Zoro # G8128251
Mfr # MS33649-14S
product price: 
$315.99
/ea
Scientific Cutting Tools PortTool, 1-3/16"-12, 2-1/4in, Straight MS16142-14S
Scientific Cutting Tools

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

Zoro # G8051522
Mfr # MS16142-14S
product price: 
$308.99
/ea
Scientific Cutting Tools Port Tool, MS33649, Reamer, 13/16-16 UNJ MS33649-9R
Scientific Cutting Tools

Port Tool, MS33649, Reamer, 13/16-16 UNJ

Zoro # G8072136
Mfr # MS33649-9R
product price: 
$307.99
/ea
Scientific Cutting Tools Port Tool, MS16142, Reamer, 5/16-24 UNF MS16142-2R
Scientific Cutting Tools

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

Zoro # G7922056
Mfr # MS16142-2R
product price: 
$230.99
/ea
Keo Counterbore, 1/32 Clearance, Size 5/16, Co 902-000-021
Keo

Counterbore, 1/32 Clearance, Size 5/16, Co

Zoro # G2623661
Mfr # 902-000-021
product price: 
$81.85
/ea
Cleveland Counterbore, 3.000" L, 0.219" dia., Bright C91695
Cleveland

Counterbore, 3.000" L, 0.219" dia., Bright

Zoro # G4834258
Mfr # C91695
product price: 
$109.99
/ea
Keo Counterbore, 1/32 Clearance, Size 3/8, Co 902-000-024
Keo

Counterbore, 1/32 Clearance, Size 3/8, Co

Zoro # G2486041
Mfr # 902-000-024
product price: 
$91.89
/ea
Keo Counterbore, 1/32 Clearance, Size 1/4, Co 902-000-018
Keo

Counterbore, 1/32 Clearance, Size 1/4, Co

Zoro # G2013435
Mfr # 902-000-018
product price: 
$74.39
/ea
Cleveland Port Tool, 2.375" L, 0.250" dia., Bright C46890
Cleveland

Port Tool, 2.375" L, 0.250" dia., Bright

Zoro # G4850629
Mfr # C46890
product price: 
$111.99
/ea
Keo Counterbore, 1/32 Clearance, Size No 10, Co 902-000-015
Keo

Counterbore, 1/32 Clearance, Size No 10, Co

Zoro # G2458337
Mfr # 902-000-015
product price: 
$69.75
/ea
Keo Counterbore, 1/32 Clearance, Size 1/2, Co 902-000-030
Keo

Counterbore, 1/32 Clearance, Size 1/2, Co

Zoro # G1152356
Mfr # 902-000-030
product price: 
$120.99
/ea
Porting Tools & Counterbores (993 items) - Page 22
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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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