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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 2

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
Super Tool Reduced Shank Counterbore, 1-5/8" D 52252
Super Tool

Reduced Shank Counterbore, 1-5/8" D

Zoro # G0331383
Mfr # 52252
product price: 
$280.99
/ea
Harvey Tool Counterbores - Flat Bottom, 0.3750" (3/8), Finish - Machining: AlTiN 23424-C3
Harvey Tool

Counterbores - Flat Bottom, 0.3750" (3/8), Finish - Machining: AlTiN

Zoro # G7150966
Mfr # 23424-C3
product price: 
$110.99
/ea
Garant Counterbore for Through Holes, 180 Deg, Uncoated, 11X6.6 mm 156020 11X6,6
Garant

Counterbore for Through Holes, 180 Deg, Uncoated, 11X6.6 mm

Zoro # G814389626
Mfr # 156020 11X6,6
product price: 
$23.15
/ea
Scientific Cutting Tools Port Tool, MS16142, Reamer, 7/16-20 UNF MS16142-4R
Scientific Cutting Tools

Port Tool, MS16142, Reamer, 7/16-20 UNF

Zoro # G7550295
Mfr # MS16142-4R
product price: 
$268.99
/ea
Super Tool Counterbore, 1-3/16" D, Carbide Tipped 59816
Super Tool

Counterbore, 1-3/16" D, Carbide Tipped

Zoro # G0329782
Mfr # 59816
product price: 
$155.99
/ea
Keo Counterbore Set, 7, Fractional Inch 902-000-293
Keo

Counterbore Set, 7, Fractional Inch

Zoro # G621725273
Mfr # 902-000-293
product price: 
$647.99
/ea
Garant Interchangeable Pilot Pin for Counterbore 156520 18-20, 9 mm 156620 5X9
Garant

Interchangeable Pilot Pin for Counterbore 156520 18-20, 9 mm

Zoro # G014389655
Mfr # 156620 5X9
product price: 
$33.15
/ea
Garant Counterbore with Interchangeable Pilot Pins, 24 mm 156520 24
Garant

Counterbore with Interchangeable Pilot Pins, 24 mm

Zoro # G714389740
Mfr # 156520 24
product price: 
$124.99
/ea
Scientific Cutting Tools Port Tool, RPT, Reamer, 5/16-24 UNJF RPT-4
Scientific Cutting Tools

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

Zoro # G8154501
Mfr # RPT-4
product price: 
$341.99
/ea
Keo Counterbore, Nominal Fit, Size 1, Cobalt 902-000-038
Keo

Counterbore, Nominal Fit, Size 1, Cobalt

Zoro # G1932016
Mfr # 902-000-038
product price: 
$448.99
/ea
Drill America 1-7/8" X 7/16" Pilot Hole HSS Taper Shank Counterbore DEWCBRTS1-7/8
Drill America

1-7/8" X 7/16" Pilot Hole HSS Taper Shank Counterbore

Zoro # G1739826
Mfr # DEWCBRTS1-7/8
product price: 
$143.99
/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
Scientific Cutting Tools PortTool, 1-1/16"-12, 2-1/8in, Straight AS5202-12R
Scientific Cutting Tools

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

Zoro # G8150274
Mfr # AS5202-12R
product price: 
$355.99
/ea
Cleveland Port Tool, 5.375" L, 0.750" dia., Bright C46443
Cleveland

Port Tool, 5.375" L, 0.750" dia., Bright

Zoro # G4850568
Mfr # C46443
product price: 
$232.99
/ea
Cleveland Counterbore, 1.625" L, 0.188" dia., Bright C46585
Cleveland

Counterbore, 1.625" L, 0.188" dia., Bright

Zoro # G4830231
Mfr # C46585
product price: 
$35.99
/ea
Scientific Cutting Tools Port Tool, MS16142, Solid, 9/16-18 UNF MS16142-6S
Scientific Cutting Tools

Port Tool, MS16142, Solid, 9/16-18 UNF

Zoro # G8435323
Mfr # MS16142-6S
product price: 
$251.99
/ea
Scientific Cutting Tools Port Tool, 7/8"-14, 2-1/8 in, Straight MS16142-10S
Scientific Cutting Tools

Port Tool, 7/8"-14, 2-1/8 in, Straight

Zoro # G8440871
Mfr # MS16142-10S
product price: 
$264.99
/ea
Keo Counterbore, Close Fit, Size No 6, Cobalt 902-000-007
Keo

Counterbore, Close Fit, Size No 6, Cobalt

Zoro # G2879667
Mfr # 902-000-007
product price: 
$66.89
/ea
Super Tool Counterbore, 5/8" D, Carbide Tipped 59807
Super Tool

Counterbore, 5/8" D, Carbide Tipped

Zoro # G0330132
Mfr # 59807
product price: 
$125.99
/ea
Cleveland Port Tool, 2.813" L, 0.250" dia., Bright C46910
Cleveland

Port Tool, 2.813" L, 0.250" dia., Bright

Zoro # G4873543
Mfr # C46910
product price: 
$198.99
/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
Keo Counterbore Set, Metric, 6 pcs., 3F, Medium 902-000-069
Keo

Counterbore Set, Metric, 6 pcs., 3F, Medium

Zoro # G8925472
Mfr # 902-000-069
product price: 
$426.99
/ea
Drill America 5/8" X 5/16" Pilots for Counterbore DEWPIL5/8X5/16
Drill America

5/8" X 5/16" Pilots for Counterbore

Zoro # G1745496
Mfr # DEWPIL5/8X5/16
product price: 
$12.75
/ea
Scientific Cutting Tools Port Tool, 1-5/8"-12, 2-1/4 in, Straight MS16142-20R
Scientific Cutting Tools

Port Tool, 1-5/8"-12, 2-1/4 in, Straight

Zoro # G8367335
Mfr # MS16142-20R
product price: 
$398.99
/ea
Super Tool Counterbore, 3/8" D, Carbide Tipped 56403
Super Tool

Counterbore, 3/8" D, Carbide Tipped

Zoro # G0330379
Mfr # 56403
product price: 
$111.99
/ea
Drill America No 10 .189mm Machine Screw Solid Counterbore DEWCBRSOL10
Drill America

No 10 .189mm Machine Screw Solid Counterbore

Zoro # G1743999
Mfr # DEWCBRSOL10
product price: 
$12.99
/ea
Super Tool Reduced Shank Counterbore, 13/32" D 52213
Super Tool

Reduced Shank Counterbore, 13/32" D

Zoro # G0331322
Mfr # 52213
product price: 
$89.25
/ea
Link 8MM HSS Se 8.73 X 11.11 Drill 13.49 Cbore 11.11 Shank 46.04 Oal 75-L2-524
Link

8MM HSS Se 8.73 X 11.11 Drill 13.49 Cbore 11.11 Shank 46.04 Oal

Zoro # G7643809
Mfr # 75-L2-524
product price: 
$28.25
/ea
Harvey Tool Counterbores - Flat Bottom, 0.0625" (1/16) 23362
Harvey Tool

Counterbores - Flat Bottom, 0.0625" (1/16)

Zoro # G7242858
Mfr # 23362
product price: 
$51.29
/ea
Harvey Tool Counterbores - Flat Bottom, 0.3437" (11/32) 23422-C3
Harvey Tool

Counterbores - Flat Bottom, 0.3437" (11/32)

Zoro # G7157135
Mfr # 23422-C3
product price: 
$115.99
/ea
Garant Counterbore for Through Holes, 180 Deg, Uncoated, 10X5.5 mm 156020 10X5,5
Garant

Counterbore for Through Holes, 180 Deg, Uncoated, 10X5.5 mm

Zoro # G114389555
Mfr # 156020 10X5,5
product price: 
$21.49
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.4375" (7/16) 25528
Harvey Tool

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

Zoro # G7262756
Mfr # 25528
product price: 
$170.99
/ea
Harvey Tool Counterbores - Flat Bottom, 0.3125" (5/16) 23420-C3
Harvey Tool

Counterbores - Flat Bottom, 0.3125" (5/16)

Zoro # G7155096
Mfr # 23420-C3
product price: 
$95.69
/ea
Garant Counterbore for Tapping Drill Holes, 180 Deg, Uncoated, 18X8.5 mm 156220 18X8,5
Garant

Counterbore for Tapping Drill Holes, 180 Deg, Uncoated, 18X8.5 mm

Zoro # G414375555
Mfr # 156220 18X8,5
product price: 
$42.19
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.3750" (3/8), Flute Length: 1" 25524-C3
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.3750" (3/8), Flute Length: 1"

Zoro # G7262126
Mfr # 25524-C3
product price: 
$166.99
/ea
Porting Tools & Counterbores (993 items) - Page 2
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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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