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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 18

Keo Counterbore, Decimal Inch, 4-1/2 in 902-000-318
Keo

Counterbore, Decimal Inch, 4-1/2 in

Zoro # G821726032
Mfr # 902-000-318
product price: 
$82.59
/ea
Morse Cap Screw Counterbore, Straight Shank, Series 1766, 6 mm Screw, 04134 Bore Dia, 618 Overall Le 25749
Morse

Cap Screw Counterbore, Straight Shank, Series 1766, 6 mm Screw, 04134 Bore Dia, 618 Overall Le

Zoro # G808029064
Mfr # 25749
product price: 
$82.25
/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
Harvey Tool 0.3750 in. 3/8 Cutter dia x 1.0000 in. 1 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes 731624
Harvey Tool

0.3750 in. 3/8 Cutter dia x 1.0000 in. 1 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes

Zoro # G011325595
Mfr # 731624
product price: 
$102.99
/ea
Internal Tool A Nc-406-437 N/C Counterbore 85-4061
Internal Tool

A Nc-406-437 N/C Counterbore

Zoro # G200402373
Mfr # 85-4061
product price: 
$126.99
/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
Internal Tool A Nc-578-625 N/C Counterbore 85-5781
Internal Tool

A Nc-578-625 N/C Counterbore

Zoro # G200402502
Mfr # 85-5781
product price: 
$331.99
/ea
Garant Interchangeable Pilot Pin for Counterbore 156520 15, 6.8 mm 156620 4X6,8
Garant

Interchangeable Pilot Pin for Counterbore 156520 15, 6.8 mm

Zoro # G514389711
Mfr # 156620 4X6,8
product price: 
$27.25
/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
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
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
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
Internal Tool A Nc-453-500 N/C Counterbore 85-4531
Internal Tool

A Nc-453-500 N/C Counterbore

Zoro # G400402364
Mfr # 85-4531
product price: 
$174.99
/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
Super Tool Counterbore, 2" D, Carbide Tipped 56428
Super Tool

Counterbore, 2" D, Carbide Tipped

Zoro # G0330248
Mfr # 56428
product price: 
$414.99
/ea
Kodiak Cutting Tools 1/2 Counterbore On Size Capscrew Style 5495754
Kodiak Cutting Tools

1/2 Counterbore On Size Capscrew Style

Zoro # G8659588
Mfr # 5495754
product price: 
$100.99
/ea
Super Tool Counterbore, 1/2" D, Carbide Tipped 59805
Super Tool

Counterbore, 1/2" D, Carbide Tipped

Zoro # G0329977
Mfr # 59805
product price: 
$112.99
/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. 10 Counterbores On Size Capscrew Style 5495699
Kodiak Cutting Tools

No. 10 Counterbores On Size Capscrew Style

Zoro # G8655467
Mfr # 5495699
product price: 
$49.65
/ea
Super Tool Counterbore, 27/32" D, Carbide Tipped 5778438
Super Tool

Counterbore, 27/32" D, Carbide Tipped

Zoro # G0330290
Mfr # 5778438
product price: 
$145.99
/ea
Kodiak Cutting Tools No. 5/16 Counterbores 1/32 Oversize Capscrew Style 5496029
Kodiak Cutting Tools

No. 5/16 Counterbores 1/32 Oversize Capscrew Style

Zoro # G8644985
Mfr # 5496029
product price: 
$68.29
/ea
Keo Counterbore, Decimal Inch, 4-1/2 in 902-000-120
Keo

Counterbore, Decimal Inch, 4-1/2 in

Zoro # G321726624
Mfr # 902-000-120
product price: 
$73.39
/ea
Harvey Tool 5/16 Cutter dia. x 1 in. 1 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, AlTiN Coated 731620-C3
Harvey Tool

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

Zoro # G911325350
Mfr # 731620-C3
product price: 
$90.99
/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: 
$142.99
/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 3MM HSS Se 3.57 X 6.35 Drill 5.95 Cbore 6.35 Shank 31.75 Oal 75-L2-520
Link

3MM HSS Se 3.57 X 6.35 Drill 5.95 Cbore 6.35 Shank 31.75 Oal

Zoro # G7636136
Mfr # 75-L2-520
product price: 
$21.75
/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
Link 5MM HSS Se 5.55 X 7.94 Drill 9.13 Cbore 7.94 Shank 38.1 Oal 75-L2-522
Link

5MM HSS Se 5.55 X 7.94 Drill 9.13 Cbore 7.94 Shank 38.1 Oal

Zoro # G7644974
Mfr # 75-L2-522
product price: 
$23.25
/ea
Garant Counterbore with Interchangeable Pilot Pins, 15 mm 156520 15
Garant

Counterbore with Interchangeable Pilot Pins, 15 mm

Zoro # G414389903
Mfr # 156520 15
product price: 
$103.99
/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
Super Tool Counterbore, 11/32" D, Carbide Tipped 5793438
Super Tool

Counterbore, 11/32" D, Carbide Tipped

Zoro # G0330272
Mfr # 5793438
product price: 
$117.99
/ea
Keo Counterbore, Decimal Inch, 4-1/2 in 902-000-314
Keo

Counterbore, Decimal Inch, 4-1/2 in

Zoro # G221724614
Mfr # 902-000-314
product price: 
$86.15
/ea
Super Tool Reduced Shank Counterbore, 1-1/16" D 52234
Super Tool

Reduced Shank Counterbore, 1-1/16" D

Zoro # G0331261
Mfr # 52234
product price: 
$170.99
/ea
Link Ua3 #6 English Shcs HSS Counterbore 60-L2-294
Link

Ua3 #6 English Shcs HSS Counterbore

Zoro # G7638769
Mfr # 60-L2-294
product price: 
$22.65
/ea
Harvey Tool Counterbores - Flat Bottom 23320-C3
Harvey Tool

Counterbores - Flat Bottom

Zoro # G601020039
Mfr # 23320-C3
product price: 
$59.59
/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
Porting Tools & Counterbores (993 items) - Page 18
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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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