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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 11

Kodiak Cutting Tools 1/4 Counterbore On Size Capscrew Style 5495710
Kodiak Cutting Tools

1/4 Counterbore On Size Capscrew Style

Zoro # G8645974
Mfr # 5495710
product price: 
$51.15
/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
Super Tool Reduced Shank Counterbore, 19/32" D 52219
Super Tool

Reduced Shank Counterbore, 19/32" D

Zoro # G0331149
Mfr # 52219
product price: 
$99.99
/ea
Kodiak Cutting Tools No. 4 Counterbores On Size Capscrew Style 5495655
Kodiak Cutting Tools

No. 4 Counterbores On Size Capscrew Style

Zoro # G8649480
Mfr # 5495655
product price: 
$47.75
/ea
Super Tool Reduced Shank Counterbore, 1-15/16" D 52262
Super Tool

Reduced Shank Counterbore, 1-15/16" D

Zoro # G0331453
Mfr # 52262
product price: 
$269.99
/ea
Link 5/16" Co 3Fl 0.343 Pilot X 0.507 Cbore 3/8" Shank X 5" Oal 50-CO-185
Link

5/16" Co 3Fl 0.343 Pilot X 0.507 Cbore 3/8" Shank X 5" Oal

Zoro # G7638866
Mfr # 50-CO-185
product price: 
$85.65
/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
Link 12MM HSS Se 12.70 X 15.87 Drill 18.75 Cbore 15.87 Shank 61.91 Oal 75-L2-526
Link

12MM HSS Se 12.70 X 15.87 Drill 18.75 Cbore 15.87 Shank 61.91 Oal

Zoro # G7636224
Mfr # 75-L2-526
product price: 
$48.75
/ea
Super Tool Reduced Shank Counterbore, 21/32" D 52221
Super Tool

Reduced Shank Counterbore, 21/32" D

Zoro # G0331173
Mfr # 52221
product price: 
$117.99
/ea
Keo Counterbore Set, 7, Fractional Inch 902-000-195
Keo

Counterbore Set, 7, Fractional Inch

Zoro # G321727829
Mfr # 902-000-195
product price: 
$573.99
/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
Hhip 5/16 X 7/16" High Speed Steel 2 Flute Solid  Cap Screw Counterbore 2007-0106
Hhip

5/16 X 7/16" High Speed Steel 2 Flute Solid Cap Screw Counterbore

Zoro # G2467895
Mfr # 2007-0106
product price: 
$17.99
/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
Internal Tool A Nc-750-750 N/C Counterbore 85-7501
Internal Tool

A Nc-750-750 N/C Counterbore

Zoro # G900402642
Mfr # 85-7501
product price: 
$441.99
/ea
Harvey Tool Counterbores-Flat Bottom, 676716, Uncoated, 1/4" Cutter Diameter, 1-5/16" Flute Length 676716
Harvey Tool

Counterbores-Flat Bottom, 676716, Uncoated, 1/4" Cutter Diameter, 1-5/16" Flute Length

Zoro # G722920553
Mfr # 676716
product price: 
$68.65
/ea
Qualtech Counterbore, Morse Taper Shank, Series DEWCBR, 3 Bore, 978 Overall Length, 5 Shank Diameter, 1 DEWCBRTS3INCH
Qualtech

Counterbore, Morse Taper Shank, Series DEWCBR, 3 Bore, 978 Overall Length, 5 Shank Diameter, 1

Zoro # G008028997
Mfr # DEWCBRTS3INCH
product price: 
$611.99
/ea
Link 3/8" 3Xd HSS Se .406 X 1.218 Drill .593 Cbore 1/2 Shank 3-1/2 Oal 50-L2-386
Link

3/8" 3Xd HSS Se .406 X 1.218 Drill .593 Cbore 1/2 Shank 3-1/2 Oal

Zoro # G7638805
Mfr # 50-L2-386
product price: 
$64.29
/ea
Super Tool Reduced Shank Counterbore, 31/32" D 52231
Super Tool

Reduced Shank Counterbore, 31/32" D

Zoro # G0331243
Mfr # 52231
product price: 
$138.99
/ea
Super Tool Counterbore, 29/32" D, Carbide Tipped 5799062
Super Tool

Counterbore, 29/32" D, Carbide Tipped

Zoro # G0330239
Mfr # 5799062
product price: 
$170.99
/ea
Internal Tool A Nc-359-375 N/C Counterbore 85-3591
Internal Tool

A Nc-359-375 N/C Counterbore

Zoro # G500402424
Mfr # 85-3591
product price: 
$103.99
/ea
Internal Tool A Nc-421-437 N/C Counterbore 85-4211
Internal Tool

A Nc-421-437 N/C Counterbore

Zoro # G600402362
Mfr # 85-4211
product price: 
$132.99
/ea
Tungaloy Solid End Mill Head, VGC120L10.0R04-, PK2 6859334
Tungaloy

Solid End Mill Head, VGC120L10.0R04-, PK2

Zoro # G401779090
Mfr # 6859334
product price: 
$197.99
/pk 2, $99.00/ea
Tungaloy Solid End Mill Head, VGC100L09.0R20-, PK2 6859423
Tungaloy

Solid End Mill Head, VGC100L09.0R20-, PK2

Zoro # G901779033
Mfr # 6859423
product price: 
$159.99
/pk 2, $80.00/ea
Super Tool 1 in. dia. Carbide Tipped Counterbore for Steel, Morse Taper Shank No. 3, 3 flutes 47421
Super Tool

1 in. dia. Carbide Tipped Counterbore for Steel, Morse Taper Shank No. 3, 3 flutes

Zoro # G810744221
Mfr # 47421
product price: 
$174.99
/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
Kodiak Cutting Tools No. 3/8 Counterbores On Size Capscrew Style 5495732
Kodiak Cutting Tools

No. 3/8 Counterbores On Size Capscrew Style

Zoro # G8659125
Mfr # 5495732
product price: 
$74.99
/ea
Link 16MM HSS Se 16.67 X 17.46 Drill 24.60 Cbore 15.87 Shank 69.85 Oal 75-L2-528
Link

16MM HSS Se 16.67 X 17.46 Drill 24.60 Cbore 15.87 Shank 69.85 Oal

Zoro # G7644980
Mfr # 75-L2-528
product price: 
$52.15
/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
Link Ua7-3/8 English Shcs HSS Counterbore 60-L2-299
Link

Ua7-3/8 English Shcs HSS Counterbore

Zoro # G7638744
Mfr # 60-L2-299
product price: 
$30.99
/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
Super Tool Counterbore, 1-9/16" D, Carbide Tipped 56422
Super Tool

Counterbore, 1-9/16" D, Carbide Tipped

Zoro # G0329618
Mfr # 56422
product price: 
$251.99
/ea
Link Ua7-1/2 English Shcs HSS Counterbore 60-L2-301
Link

Ua7-1/2 English Shcs HSS Counterbore

Zoro # G7644868
Mfr # 60-L2-301
product price: 
$52.39
/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: 
$142.99
/ea
Kodiak Cutting Tools No. 3/4 Counterbores 1/32 Oversize Capscrew Style 5496084
Kodiak Cutting Tools

No. 3/4 Counterbores 1/32 Oversize Capscrew Style

Zoro # G8645000
Mfr # 5496084
product price: 
$190.99
/ea
Kodiak Cutting Tools No. 6 Counterbores On Size Capscrew Style 5495677
Kodiak Cutting Tools

No. 6 Counterbores On Size Capscrew Style

Zoro # G8653279
Mfr # 5495677
product price: 
$48.55
/ea
Tungaloy Solid End Mill Head, VGC120L10.0R20-, PK2 6859335
Tungaloy

Solid End Mill Head, VGC120L10.0R20-, PK2

Zoro # G901779019
Mfr # 6859335
product price: 
$201.99
/pk 2, $101.00/ea
Porting Tools & Counterbores (993 items) - Page 11
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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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