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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 27

Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.1968" 2555M
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.1968"

Zoro # G7167696
Mfr # 2555M
product price: 
$101.99
/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
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
Kodiak Cutting Tools No. 10 Counterbores 1/32 Oversize Capscrew Style 5496007
Kodiak Cutting Tools

No. 10 Counterbores 1/32 Oversize Capscrew Style

Zoro # G8622795
Mfr # 5496007
product price: 
$47.99
/ea
Keo Counterbore, Metric, 71 mm 902-000-216
Keo

Counterbore, Metric, 71 mm

Zoro # G521727421
Mfr # 902-000-216
product price: 
$64.39
/ea
Cleveland Counterbore, 7.000" L, 0.500" dia., Bright C91719
Cleveland

Counterbore, 7.000" L, 0.500" dia., Bright

Zoro # G4814308
Mfr # C91719
product price: 
$212.99
/ea
Keo Counterbore, Decimal Inch, 4-1/2 in 902-000-132
Keo

Counterbore, Decimal Inch, 4-1/2 in

Zoro # G521726745
Mfr # 902-000-132
product price: 
$76.79
/ea
Link Ua4-6MM Metric Shcs HSS Counterbore 72-L2-513
Link

Ua4-6MM Metric Shcs HSS Counterbore

Zoro # G7642725
Mfr # 72-L2-513
product price: 
$32.75
/ea
Garant Counterbore for Through Holes, 180 Deg, Uncoated, 18X10.5 mm 156020 18X10,5
Garant

Counterbore for Through Holes, 180 Deg, Uncoated, 18X10.5 mm

Zoro # G414389545
Mfr # 156020 18X10,5
product price: 
$44.15
/ea
Harvey Tool Counterbores - Flat Bottom 23320-C3
Harvey Tool

Counterbores - Flat Bottom

Zoro # G601020039
Mfr # 23320-C3
product price: 
$59.59
/ea
Cleveland AircraftCounterboreW/IntPilot, 11/16in C46900
Cleveland

AircraftCounterboreW/IntPilot, 11/16in

Zoro # G4767277
Mfr # C46900
product price: 
$150.99
/ea
Internal Tool A Nc-687-750 N/C Counterbore 85-6871
Internal Tool

A Nc-687-750 N/C Counterbore

Zoro # G500402516
Mfr # 85-6871
product price: 
$465.99
/ea
Super Tool Counterbore, 1-3/8" D, Carbide Tipped 56419
Super Tool

Counterbore, 1-3/8" D, Carbide Tipped

Zoro # G0329889
Mfr # 56419
product price: 
$175.99
/ea
Cleveland Counterbore, 7.000" L, 0.500" dia., Bright C91720
Cleveland

Counterbore, 7.000" L, 0.500" dia., Bright

Zoro # G4768351
Mfr # C91720
product price: 
$205.99
/ea
Harvey Tool 0.3320'' Cutter DIA x 1.0000'', 1 Flute Length - 4 FL - AlTiN Coated 23731-C3
Harvey Tool

0.3320'' Cutter DIA x 1.0000'', 1 Flute Length - 4 FL - AlTiN Coated

Zoro # G813082092
Mfr # 23731-C3
product price: 
$112.99
/ea
Super Tool Reduced Shank Counterbore, 25/32" D 52225
Super Tool

Reduced Shank Counterbore, 25/32" D

Zoro # G0331508
Mfr # 52225
product price: 
$132.99
/ea
Super Tool Counterbore, 21/32" D, Carbide Tipped 5776562
Super Tool

Counterbore, 21/32" D, Carbide Tipped

Zoro # G0330342
Mfr # 5776562
product price: 
$128.99
/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: 
$194.99
/ea
Scientific Cutting Tools Port Tool, 1"-12, 2-1/8 in, Straight MS33649-11R
Scientific Cutting Tools

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

Zoro # G8060491
Mfr # MS33649-11R
product price: 
$313.99
/ea
Cleveland Counterbore, 1.875" L, 0.250" dia., Bright C46599
Cleveland

Counterbore, 1.875" L, 0.250" dia., Bright

Zoro # G4762121
Mfr # C46599
product price: 
$41.39
/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: 
$196.99
/ea
Garant Interchangeable Pilot Pin for Counterbore 156520 26-30, 17.5 mm 156620 8X17,5
Garant

Interchangeable Pilot Pin for Counterbore 156520 26-30, 17.5 mm

Zoro # G514389551
Mfr # 156620 8X17,5
product price: 
$38.19
/ea
Link 1/4" 3Xd HSS Se .280 X .840 Drill .406 Cbore 3/8 Shank 2-3/4 Oal 50-L2-384
Link

1/4" 3Xd HSS Se .280 X .840 Drill .406 Cbore 3/8 Shank 2-3/4 Oal

Zoro # G7636084
Mfr # 50-L2-384
product price: 
$40.25
/ea
Cleveland Counterbore, 2.562" L, 0.375" dia., Bright C46659
Cleveland

Counterbore, 2.562" L, 0.375" dia., Bright

Zoro # G4837432
Mfr # C46659
product price: 
$58.15
/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: 
$260.99
/ea
Super Tool Counterbore, 1-11/16" D, Carbide Tipped 56429
Super Tool

Counterbore, 1-11/16" D, Carbide Tipped

Zoro # G0329931
Mfr # 56429
product price: 
$333.99
/ea
Link Ua3-3MM Metric Shcs HSS Counterbore 72-L2-510
Link

Ua3-3MM Metric Shcs HSS Counterbore

Zoro # G7636075
Mfr # 72-L2-510
product price: 
$23.49
/ea
Cleveland Counterbore, 6.000" L, 0.438" dia., Bright C92706
Cleveland

Counterbore, 6.000" L, 0.438" dia., Bright

Zoro # G4830082
Mfr # C92706
product price: 
$140.99
/ea
Cleveland Port Tool, 6.375" L, 1.000" dia., Bright C46449
Cleveland

Port Tool, 6.375" L, 1.000" dia., Bright

Zoro # G4815242
Mfr # C46449
product price: 
$277.99
/ea
Garant Counterbore with Interchangeable Pilot Pins, 26 mm 156520 26
Garant

Counterbore with Interchangeable Pilot Pins, 26 mm

Zoro # G714389757
Mfr # 156520 26
product price: 
$137.99
/ea
Link 1/4" Co 3Fl 0.281 Pilot X 0.414 Cbore 5/16" Shank X 4" Oal 50-CO-184
Link

1/4" Co 3Fl 0.281 Pilot X 0.414 Cbore 5/16" Shank X 4" Oal

Zoro # G7637317
Mfr # 50-CO-184
product price: 
$78.85
/ea
Keo Counterbore, Metric, 80 mm 902-000-234
Keo

Counterbore, Metric, 80 mm

Zoro # G821726940
Mfr # 902-000-234
product price: 
$75.39
/ea
Link 3/8" Co 3Fl 0.406 Pilot X 0.604 Cbore 3/8" Shank X 5" Oal 50-CO-186
Link

3/8" Co 3Fl 0.406 Pilot X 0.604 Cbore 3/8" Shank X 5" Oal

Zoro # G7641270
Mfr # 50-CO-186
product price: 
$96.55
/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: 
$257.99
/ea
Harvey Tool Counterbores - Flat Bottom, 0.1575" 2344M-C3
Harvey Tool

Counterbores - Flat Bottom, 0.1575"

Zoro # G7242928
Mfr # 2344M-C3
product price: 
$58.29
/ea
Hhip 7/16 X 1/2" High Speed Steel 2 Flute Solid  Cap Screw Counterbore 2007-0108
Hhip

7/16 X 1/2" High Speed Steel 2 Flute Solid Cap Screw Counterbore

Zoro # G2467999
Mfr # 2007-0108
product price: 
$29.69
/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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