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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 3

Keo Counterbore, 1/32 Clearance, Size 3/4, Co 902-000-035
Keo

Counterbore, 1/32 Clearance, Size 3/4, Co

Zoro # G3346673
Mfr # 902-000-035
product price: 
$244.99
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.3750" (3/8), Number of Flutes: 4 25524
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.3750" (3/8), Number of Flutes: 4

Zoro # G7260297
Mfr # 25524
product price: 
$144.99
/ea
Drill America 1/2" X 3/8" Pilots for Counterbore DEWPIL1/2X3/8
Drill America

1/2" X 3/8" Pilots for Counterbore

Zoro # G1747176
Mfr # DEWPIL1/2X3/8
product price: 
$8.29
/ea
Scientific Cutting Tools Port Tool, MS16142, Solid, 1/2-20 UNF SAEJ1926-05S
Scientific Cutting Tools

Port Tool, MS16142, Solid, 1/2-20 UNF

Zoro # G8276685
Mfr # SAEJ1926-05S
product price: 
$256.99
/ea
Scientific Cutting Tools Port Tool, MS33649, Solid, 7/8-14 UNJF MS33649-10S
Scientific Cutting Tools

Port Tool, MS33649, Solid, 7/8-14 UNJF

Zoro # G8321677
Mfr # MS33649-10S
product price: 
$309.99
/ea
Link 10MM HSS Se 10.32 X 14.29 Drill 16.66 Cbore 12.70 Shank 52.39 Oal 75-L2-525
Link

10MM HSS Se 10.32 X 14.29 Drill 16.66 Cbore 12.70 Shank 52.39 Oal

Zoro # G7637326
Mfr # 75-L2-525
product price: 
$32.59
/ea
Super Tool Reduced Shank Counterbore, 13/16" D 52226
Super Tool

Reduced Shank Counterbore, 13/16" D

Zoro # G0331331
Mfr # 52226
product price: 
$133.99
/ea
Super Tool Reduced Shank Counterbore, 3/8" D 52212
Super Tool

Reduced Shank Counterbore, 3/8" D

Zoro # G0331410
Mfr # 52212
product price: 
$82.55
/ea
Super Tool Reduced Shank Counterbore, 1-1/4" D 52240
Super Tool

Reduced Shank Counterbore, 1-1/4" D

Zoro # G0331532
Mfr # 52240
product price: 
$234.99
/ea
Harvey Tool 3/16 Cutter dia. x .75  in. 3/4 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes 23412-C8
Harvey Tool

3/16 Cutter dia. x .75 in. 3/4 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes

Zoro # G711326403
Mfr # 23412-C8
product price: 
$58.19
/ea
Super Tool Counterbore, 7/16" D, Carbide Tipped 56404
Super Tool

Counterbore, 7/16" D, Carbide Tipped

Zoro # G0330123
Mfr # 56404
product price: 
$108.99
/ea
Link 5/16" HSS Se .340 X .375 Drill .490 Cbore 1/2 Shank 1-15/16 Oal 50-L2-185
Link

5/16" HSS Se .340 X .375 Drill .490 Cbore 1/2 Shank 1-15/16 Oal

Zoro # G7635996
Mfr # 50-L2-185
product price: 
$23.45
/ea
Harvey Tool 0.4375 in. 7/16 Cutter dia. x 1 in. 1 Carbide Flat Bottom Counterbore, 4 Flutes, AlTiN Coated 731628-C3
Harvey Tool

0.4375 in. 7/16 Cutter dia. x 1 in. 1 Carbide Flat Bottom Counterbore, 4 Flutes, AlTiN Coated

Zoro # G511325422
Mfr # 731628-C3
product price: 
$146.99
/ea
Super Tool Counterbore, 25/32" D, Carbide Tipped 5777812
Super Tool

Counterbore, 25/32" D, Carbide Tipped

Zoro # G0330281
Mfr # 5777812
product price: 
$133.99
/ea
Super Tool Counterbore, 1-1/16" D, Carbide Tipped 56414
Super Tool

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

Zoro # G0329898
Mfr # 56414
product price: 
$135.99
/ea
Super Tool Counterbore, 11/16" D, Carbide Tipped 56408
Super Tool

Counterbore, 11/16" D, Carbide Tipped

Zoro # G0330047
Mfr # 56408
product price: 
$113.99
/ea
Super Tool Counterbore, 1-1/2" D, Carbide Tipped 56421
Super Tool

Counterbore, 1-1/2" D, Carbide Tipped

Zoro # G0329852
Mfr # 56421
product price: 
$236.99
/ea
Kodiak Cutting Tools No. 3/4 Counterbores 1/64 Oversize Capscrew Style 5495930
Kodiak Cutting Tools

No. 3/4 Counterbores 1/64 Oversize Capscrew Style

Zoro # G8627047
Mfr # 5495930
product price: 
$164.99
/ea
Link 3/8" HSS Se .406 X .468 Drill .593 Cbore 5/8 Shank 2-11/32 Oal 50-L2-186
Link

3/8" HSS Se .406 X .468 Drill .593 Cbore 5/8 Shank 2-11/32 Oal

Zoro # G7645017
Mfr # 50-L2-186
product price: 
$30.15
/ea
Link #10 3Xd HSS Se .200 X .600 Drill .332 Cbore 3/8 Shank 2-1/4 Oal 50-L2-383
Link

#10 3Xd HSS Se .200 X .600 Drill .332 Cbore 3/8 Shank 2-1/4 Oal

Zoro # G7640004
Mfr # 50-L2-383
product price: 
$38.29
/ea
No Product Image Available
Super Tool

Counterbore Pilot, 1/2 X 3/16

Zoro # G007386043
Mfr # 56226
product price: 
$39.49
/ea
Garant Counterbore with Interchangeable Pilot Pins, 30 mm 156520 30
Garant

Counterbore with Interchangeable Pilot Pins, 30 mm

Zoro # G114389821
Mfr # 156520 30
product price: 
$178.99
/ea
Super Tool Reduced Shank Counterbore, 1-5/16" D 52242
Super Tool

Reduced Shank Counterbore, 1-5/16" D

Zoro # G0331429
Mfr # 52242
product price: 
$197.99
/ea
Super Tool Counterbore, 5/16" D, Carbide Tipped 56402
Super Tool

Counterbore, 5/16" D, Carbide Tipped

Zoro # G0330412
Mfr # 56402
product price: 
$99.65
/ea
Link 1/2" Co 3Fl 0.531 Pilot X 0.789 Cbore 1/2" Shank X 6" Oal 50-CO-188
Link

1/2" Co 3Fl 0.531 Pilot X 0.789 Cbore 1/2" Shank X 6" Oal

Zoro # G7638909
Mfr # 50-CO-188
product price: 
$115.99
/ea
Keo Counterbore, 1/32 Clearance, Size No 6, Co 902-000-009
Keo

Counterbore, 1/32 Clearance, Size No 6, Co

Zoro # G1198321
Mfr # 902-000-009
product price: 
$64.85
/ea
Keo Counterbore, 1/32 Clearance, Size 5/8, Co 902-000-033
Keo

Counterbore, 1/32 Clearance, Size 5/8, Co

Zoro # G1975653
Mfr # 902-000-033
product price: 
$177.99
/ea
Keo Counterbore, 1/64 Clearance, Size 5/8, Co 902-000-032
Keo

Counterbore, 1/64 Clearance, Size 5/8, Co

Zoro # G3372582
Mfr # 902-000-032
product price: 
$142.99
/ea
Scientific Cutting Tools PortTool, 1-5/16"-12, 2-1/4in, Straight MS33649-16R
Scientific Cutting Tools

PortTool, 1-5/16"-12, 2-1/4in, Straight

Zoro # G7963611
Mfr # MS33649-16R
product price: 
$406.99
/ea
Keo No 6 through 1/2" +1/32 Oversize Kounterbore Set 902-000-042
Keo

No 6 through 1/2" +1/32 Oversize Kounterbore Set

Zoro # G2600656
Mfr # 902-000-042
product price: 
$577.99
/ea
Keo Counterbore, 1/64 Clearance, Size 5/16, Co 902-000-020
Keo

Counterbore, 1/64 Clearance, Size 5/16, Co

Zoro # G0742113
Mfr # 902-000-020
product price: 
$81.85
/ea
Scientific Cutting Tools PortTool, 1-5/16"-12, 2-1/4in, Straight MS16142-16S
Scientific Cutting Tools

PortTool, 1-5/16"-12, 2-1/4in, Straight

Zoro # G7937352
Mfr # MS16142-16S
product price: 
$349.99
/ea
Scientific Cutting Tools Port Tool, MS16142, Solid, 3/8-24 UNF MS16142-3S
Scientific Cutting Tools

Port Tool, MS16142, Solid, 3/8-24 UNF

Zoro # G8237117
Mfr # MS16142-3S
product price: 
$233.99
/ea
Scientific Cutting Tools Port Tool, 3/4"-16, 2-1/8 in, Straight MS16142-8S
Scientific Cutting Tools

Port Tool, 3/4"-16, 2-1/8 in, Straight

Zoro # G8209966
Mfr # MS16142-8S
product price: 
$269.99
/ea
Scientific Cutting Tools Port Tool, MS16142, Solid, 7/16-20 UNF MS16142-4S
Scientific Cutting Tools

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

Zoro # G8129712
Mfr # MS16142-4S
product price: 
$228.99
/ea
Scientific Cutting Tools Port Tool, MS33649, Reamer, 7/16-20 UNJF MS33649-4R
Scientific Cutting Tools

Port Tool, MS33649, Reamer, 7/16-20 UNJF

Zoro # G8406955
Mfr # MS33649-4R
product price: 
$261.99
/ea
Porting Tools & Counterbores (993 items) - Page 3
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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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