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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 20

Garant Counterbore with Interchangeable Pilot Pins, 40 mm 156520 40
Garant

Counterbore with Interchangeable Pilot Pins, 40 mm

Zoro # G314389799
Mfr # 156520 40
product price: 
$260.99
/ea
Harvey Tool 1/4 in. Cutter dia. x7/8 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, TiB2 Coated 23416-C8
Harvey Tool

1/4 in. Cutter dia. x7/8 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, TiB2 Coated

Zoro # G111324603
Mfr # 23416-C8
product price: 
$78.59
/ea
Garant Interchangeable Pilot Pin for Counterbore 156520 26-30, 12 mm 156620 8X12
Garant

Interchangeable Pilot Pin for Counterbore 156520 26-30, 12 mm

Zoro # G914389564
Mfr # 156620 8X12
product price: 
$39.75
/ea
Tungaloy Solid End Mill Head, VGC117L10.0R03-, PK2 6859458
Tungaloy

Solid End Mill Head, VGC117L10.0R03-, PK2

Zoro # G801779058
Mfr # 6859458
product price: 
$68.69
/pk of 2, $34.35/ea
Garant Interchangeable Pilot Pin for Counterbore 156520 18-20, 6.8 mm 156620 5X6,8
Garant

Interchangeable Pilot Pin for Counterbore 156520 18-20, 6.8 mm

Zoro # G814389701
Mfr # 156620 5X6,8
product price: 
$33.15
/ea
Super Tool Reduced Shank Counterbore, 5/16" D 52210
Super Tool

Reduced Shank Counterbore, 5/16" D

Zoro # G0331313
Mfr # 52210
product price: 
$74.69
/ea
Internal Tool A Nc-515-562 N/C Counterbore 85-5151
Internal Tool

A Nc-515-562 N/C Counterbore

Zoro # G100402497
Mfr # 85-5151
product price: 
$232.99
/ea
Garant Interchangeable Pilot Pin for Counterbore 156520 33-40, 22 mm 156620 10X22
Garant

Interchangeable Pilot Pin for Counterbore 156520 33-40, 22 mm

Zoro # G014389815
Mfr # 156620 10X22
product price: 
$47.45
/ea
Keen Sleeve Height & Counterbore Gage KE278657
Keen

Sleeve Height & Counterbore Gage

Zoro # G909923957
Mfr # KE278657
product price: 
$337.99
/ea
Link 5/8" Co 3Fl 0.655 Pilot X 0.978 Cbore 5/8" Shank X 6" Oal 50-CO-189
Link

5/8" Co 3Fl 0.655 Pilot X 0.978 Cbore 5/8" Shank X 6" Oal

Zoro # G7642698
Mfr # 50-CO-189
product price: 
$183.99
/ea
Tungaloy Solid End Mill Head, VGC080L08.0R20-, PK2 6859504
Tungaloy

Solid End Mill Head, VGC080L08.0R20-, PK2

Zoro # G401779045
Mfr # 6859504
product price: 
$139.99
/pk of 2, $70.00/ea
Kodiak Cutting Tools No. 6 Counterbores 1/64 Oversize Capscrew Style 5495831
Kodiak Cutting Tools

No. 6 Counterbores 1/64 Oversize Capscrew Style

Zoro # G8614824
Mfr # 5495831
product price: 
$45.25
/ea
Garant Interchangeable Pilot Pin for Counterbore 156520 18-20, 13 mm 156620 5X13
Garant

Interchangeable Pilot Pin for Counterbore 156520 18-20, 13 mm

Zoro # G914389717
Mfr # 156620 5X13
product price: 
$33.15
/ea
Link #8 3Xd HSS Se .178 X .534 Drill .290 Cbore 3/8 Shank 2-1/4 Oal 50-L2-382
Link

#8 3Xd HSS Se .178 X .534 Drill .290 Cbore 3/8 Shank 2-1/4 Oal

Zoro # G7642716
Mfr # 50-L2-382
product price: 
$35.15
/ea
Kodiak Cutting Tools 1/2 Counterbore 1/32 Oversize Capscrew Style 5496062
Kodiak Cutting Tools

1/2 Counterbore 1/32 Oversize Capscrew Style

Zoro # G8644748
Mfr # 5496062
product price: 
$99.15
/ea
Internal Tool A Nc-562-562 N/C Counterbore 85-5621
Internal Tool

A Nc-562-562 N/C Counterbore

Zoro # G000402535
Mfr # 85-5621
product price: 
$295.99
/ea
Kodiak Cutting Tools 7/16 Counterbore 1/64 Oversize Capscrew Style 5495897
Kodiak Cutting Tools

7/16 Counterbore 1/64 Oversize Capscrew Style

Zoro # G8630109
Mfr # 5495897
product price: 
$84.55
/ea
Keo Counterbore, Decimal Inch, 4-1/2 in 902-000-129
Keo

Counterbore, Decimal Inch, 4-1/2 in

Zoro # G021726566
Mfr # 902-000-129
product price: 
$76.79
/ea
Super Tool Counterbore, 27/32" D, Carbide Tipped 5798438
Super Tool

Counterbore, 27/32" D, Carbide Tipped

Zoro # G0330187
Mfr # 5798438
product price: 
$158.99
/ea
Super Tool Counterbore, 13/32" D, Carbide Tipped 5794062
Super Tool

Counterbore, 13/32" D, Carbide Tipped

Zoro # G0330053
Mfr # 5794062
product price: 
$114.99
/ea
Internal Tool A Nc-328-375 N/C Counterbore 85-3281
Internal Tool

A Nc-328-375 N/C Counterbore

Zoro # G300402402
Mfr # 85-3281
product price: 
$104.99
/ea
Internal Tool A Nc-703-750 N/C Counterbore 85-7031
Internal Tool

A Nc-703-750 N/C Counterbore

Zoro # G900402499
Mfr # 85-7031
product price: 
$465.99
/ea
Kodiak Cutting Tools 1/4 Counterbore 1/32 Oversize Capscrew Style 5496018
Kodiak Cutting Tools

1/4 Counterbore 1/32 Oversize Capscrew Style

Zoro # G8636269
Mfr # 5496018
product price: 
$51.15
/ea
Hhip 3/4 X 13/16 High Speed Steel 3 Flute Solid  Pilot Counterbore 2007-0034
Hhip

3/4 X 13/16 High Speed Steel 3 Flute Solid Pilot Counterbore

Zoro # G2467956
Mfr # 2007-0034
product price: 
$28.25
/ea
Harvey Tool Counterbores - Flat Bottom 23380
Harvey Tool

Counterbores - Flat Bottom

Zoro # G901019214
Mfr # 23380
product price: 
$50.15
/ea
Internal Tool A Nc-672-750 N/C Counterbore 85-6721
Internal Tool

A Nc-672-750 N/C Counterbore

Zoro # G700402484
Mfr # 85-6721
product price: 
$444.99
/ea
Hhip M10 X 11mm HSS 3 Flute Straight Shank Solid Pilot Counterbore 2007-0064
Hhip

M10 X 11mm HSS 3 Flute Straight Shank Solid Pilot Counterbore

Zoro # G2468157
Mfr # 2007-0064
product price: 
$41.99
/ea
Kodiak Cutting Tools No. 4 Counterbores 1/32 Oversize Capscrew Style 5495963
Kodiak Cutting Tools

No. 4 Counterbores 1/32 Oversize Capscrew Style

Zoro # G8627677
Mfr # 5495963
product price: 
$43.85
/ea
Qualtech Counterbore, Morse Taper Shank, Series DEWCBR, 234 Bore, 978 Overall Length, 5 Shank Diamete DEWCBRTS2-3/4
Qualtech

Counterbore, Morse Taper Shank, Series DEWCBR, 234 Bore, 978 Overall Length, 5 Shank Diamete

Zoro # G208029152
Mfr # DEWCBRTS2-3/4
product price: 
$507.99
/ea
Morse Cap Screw Counterbore, Series 1766, 4 Screw, 0199 Bore Dia, 378 Overall Length, 4 Flutes, 01 25701
Morse

Cap Screw Counterbore, Series 1766, 4 Screw, 0199 Bore Dia, 378 Overall Length, 4 Flutes, 01

Zoro # G108028958
Mfr # 25701
product price: 
$53.99
/ea
Super Tool Counterbore, 1-3/16" D, Carbide Tipped 56416
Super Tool

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

Zoro # G0329843
Mfr # 56416
product price: 
$154.99
/ea
Harvey Tool 0.2187 in. 7/32 Cutter dia x 0.75in. 3/4 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes 731614
Harvey Tool

0.2187 in. 7/32 Cutter dia x 0.75in. 3/4 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes

Zoro # G511325170
Mfr # 731614
product price: 
$70.69
/ea
Keo Counterbore, Decimal Inch, 4-1/2 in 902-000-321
Keo

Counterbore, Decimal Inch, 4-1/2 in

Zoro # G621724955
Mfr # 902-000-321
product price: 
$74.89
/ea
Harvey Tool Counterbores-Flat Bottom, 676732-C3, AlTiN, 1/2" Cutter Diameter, 1-1/2" Flute Length 676732-C3
Harvey Tool

Counterbores-Flat Bottom, 676732-C3, AlTiN, 1/2" Cutter Diameter, 1-1/2" Flute Length

Zoro # G122920757
Mfr # 676732-C3
product price: 
$184.99
/ea
Harvey Tool Counterbores - Flat Bottom 23360
Harvey Tool

Counterbores - Flat Bottom

Zoro # G501019232
Mfr # 23360
product price: 
$48.89
/ea
Tungaloy Solid End Mill Head, VGC080L08.0R10-, PK2 6859333
Tungaloy

Solid End Mill Head, VGC080L08.0R10-, PK2

Zoro # G401779007
Mfr # 6859333
product price: 
$142.99
/pk of 2, $71.50/ea
Porting Tools & Counterbores (993 items) - Page 20
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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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1-1/4 in counterborehigh speed steelmetric counterboreinterchangeable pilot counterborescientific cutting tools
metric shcspilot counterbore5/8 counterborecounter bore pilotcounter bore set

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