Featured Categories

  • Tools & Machining
  • Shipping, Packaging & Office Supplies
  • Plumbing
  • Safety

Shop Categories

  • Abrasives & Polishers
  • Adhesives & Tapes
  • Electrical Supplies
  • Electronics
  • Fasteners
  • Food Service & Restaurant Supplies
  • Furniture, Linens & Decor
  • Grounds & Outdoor
  • Hardware & Building Materials
  • Heating & Cooling
  • Janitorial & Cleaning Supplies
  • Lab Equipment & Supplies
  • Lighting
  • Material Handling
  • Medical & Personal Care
  • Paint, Coatings & Supplies
  • Plumbing
  • Power Transmission
  • Pumps
  • Raw Materials
  • Safety
  • Shipping, Packaging & Office Supplies
  • Storage & Workspace
  • Test Instruments & Gauges
  • Tools & Machining
  • Vehicle Maintenance
  • Welding, Soldering & Brazing
  • About Us
  • Deals
  • Contact Us

Added to Cart

Skip to Main Content Accessibility Statement
FREE SHIPPING on orders over $50 after you . Restrictions Apply
Zoro Homepage
Clipboard Icon Clipboard Icon Quick Order
User Headset Icon User Headset Icon Support
0
0
Cart
  • Low prices on everyday needs. Shop Zoro Select
  • Don't miss these limited time offers. Shop All Deals
  • Get 30 days to pay with Net 30. Apply Now
  1. Home
  2. /
  3. Tools & Machining
  4. /
  5. Cutting Tools
  6. /
  7. Porting Tools & Counterbores

Porting Tools & Counterbores (993 items) - Page 8

Harvey Tool 5/16 Cutter dia. x 1 in. 1 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, TiB2 Coated 23420-C8
Harvey Tool

5/16 Cutter dia. x 1 in. 1 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, TiB2 Coated

Zoro # G311324687
Mfr # 23420-C8
product price: 
$96.15
/ea
Kodiak Cutting Tools 1/2 Counterbore 1/64 Oversize Capscrew Style 5495908
Kodiak Cutting Tools

1/2 Counterbore 1/64 Oversize Capscrew Style

Zoro # G8624274
Mfr # 5495908
product price: 
$108.99
/ea
Kodiak Cutting Tools No. 5/8 Counterbores On Size Capscrew Style 5495765
Kodiak Cutting Tools

No. 5/8 Counterbores On Size Capscrew Style

Zoro # G8654444
Mfr # 5495765
product price: 
$164.99
/ea
Kodiak Cutting Tools 7/16 Counterbore 1/32 Oversize Capscrew Style 5496051
Kodiak Cutting Tools

7/16 Counterbore 1/32 Oversize Capscrew Style

Zoro # G8637477
Mfr # 5496051
product price: 
$84.55
/ea
Harvey Tool 0.1181 in. 3 mm Cutter dia. x 3/8 in. Carbide Flat Bottom Counterbore, 4 Flutes, TiB2 Coated 2343M-C8
Harvey Tool

0.1181 in. 3 mm Cutter dia. x 3/8 in. Carbide Flat Bottom Counterbore, 4 Flutes, TiB2 Coated

Zoro # G411324723
Mfr # 2343M-C8
product price: 
$58.49
/ea
Kodiak Cutting Tools No. 5 Counterbores On Size Capscrew Style 5495666
Kodiak Cutting Tools

No. 5 Counterbores On Size Capscrew Style

Zoro # G8655074
Mfr # 5495666
product price: 
$40.95
/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
Harvey Tool 0.2187 in. 7/32 Cutter dia. x 3/4 Carbide Flat Bottom Counterbore, 4 Flutes, AlTiN Coated 731614-C3
Harvey Tool

0.2187 in. 7/32 Cutter dia. x 3/4 Carbide Flat Bottom Counterbore, 4 Flutes, AlTiN Coated

Zoro # G011325229
Mfr # 731614-C3
product price: 
$79.89
/ea
Kodiak Cutting Tools 7/8 Counterbore 1/64 Oversize Capscrew Style 5495941
Kodiak Cutting Tools

7/8 Counterbore 1/64 Oversize Capscrew Style

Zoro # G8630407
Mfr # 5495941
product price: 
$225.99
/ea
Kodiak Cutting Tools 7/16 Counterbore On Size Capscrew Style 5495743
Kodiak Cutting Tools

7/16 Counterbore On Size Capscrew Style

Zoro # G8654259
Mfr # 5495743
product price: 
$84.55
/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
Kodiak Cutting Tools No. 5/8 Counterbores 1/64 Oversize Capscrew Style 5495919
Kodiak Cutting Tools

No. 5/8 Counterbores 1/64 Oversize Capscrew Style

Zoro # G8630687
Mfr # 5495919
product price: 
$177.99
/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
Kodiak Cutting Tools No. 8 Counterbores 1/64 Oversize Capscrew Style 5495842
Kodiak Cutting Tools

No. 8 Counterbores 1/64 Oversize Capscrew Style

Zoro # G8620896
Mfr # 5495842
product price: 
$52.39
/ea
Kodiak Cutting Tools No. 10 Counterbores 1/64 Oversize Capscrew Style 5495853
Kodiak Cutting Tools

No. 10 Counterbores 1/64 Oversize Capscrew Style

Zoro # G8604559
Mfr # 5495853
product price: 
$49.65
/ea
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
Kodiak Cutting Tools No. 5/16 Counterbores On Size Capscrew Style 5495721
Kodiak Cutting Tools

No. 5/16 Counterbores On Size Capscrew Style

Zoro # G8662397
Mfr # 5495721
product price: 
$69.99
/ea
Keo Counterbore Set, 7, Fractional Inch 902-000-294
Keo

Counterbore Set, 7, Fractional Inch

Zoro # G021724876
Mfr # 902-000-294
product price: 
$647.99
/ea
Keo Counterbore Set, 7, Fractional Inch 902-000-189
Keo

Counterbore Set, 7, Fractional Inch

Zoro # G321726334
Mfr # 902-000-189
product price: 
$573.99
/ea
Kodiak Cutting Tools No. 1 Counterbores On Size Capscrew Style 5495798
Kodiak Cutting Tools

No. 1 Counterbores On Size Capscrew Style

Zoro # G8614797
Mfr # 5495798
product price: 
$278.99
/ea
Kodiak Cutting Tools No. 6 Counterbores 1/32 Oversize Capscrew Style 5495985
Kodiak Cutting Tools

No. 6 Counterbores 1/32 Oversize Capscrew Style

Zoro # G8633590
Mfr # 5495985
product price: 
$45.25
/ea
Harvey Tool 1/2 in. Cutter dia. x 1 in. 1 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, TiB2 Coated 23432-C8
Harvey Tool

1/2 in. Cutter dia. x 1 in. 1 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, TiB2 Coated

Zoro # G811324668
Mfr # 23432-C8
product price: 
$176.99
/ea
Harvey Tool 0.5000 in. 1/2 Cutter dia x 1.0000 in. 1 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes 731632
Harvey Tool

0.5000 in. 1/2 Cutter dia x 1.0000 in. 1 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes

Zoro # G011325441
Mfr # 731632
product price: 
$164.99
/ea
Kodiak Cutting Tools No. 8 Counterbores 1/32 Oversize Capscrew Style 5495996
Kodiak Cutting Tools

No. 8 Counterbores 1/32 Oversize Capscrew Style

Zoro # G8624396
Mfr # 5495996
product price: 
$49.65
/ea
Keo Counterbore Set, 7, Fractional Inch 902-000-192
Keo

Counterbore Set, 7, Fractional Inch

Zoro # G421725862
Mfr # 902-000-192
product price: 
$573.99
/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
Kodiak Cutting Tools No. 4 Counterbores 1/64 Oversize Capscrew Style 5495809
Kodiak Cutting Tools

No. 4 Counterbores 1/64 Oversize Capscrew Style

Zoro # G8615585
Mfr # 5495809
product price: 
$46.19
/ea
Kodiak Cutting Tools No. 5/8 Counterbores 1/32 Oversize Capscrew Style 5496073
Kodiak Cutting Tools

No. 5/8 Counterbores 1/32 Oversize Capscrew Style

Zoro # G8631886
Mfr # 5496073
product price: 
$164.99
/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
Kodiak Cutting Tools No. 3/8 Counterbores 1/32 Oversize Capscrew Style 5496040
Kodiak Cutting Tools

No. 3/8 Counterbores 1/32 Oversize Capscrew Style

Zoro # G8640170
Mfr # 5496040
product price: 
$71.35
/ea
Harvey Tool 11/32 in. Cutter dia. x 1 in. 1 Carbide Flat Bottom Counterbore, 4 Flutes, AlTiN Coated 731622-C3
Harvey Tool

11/32 in. Cutter dia. x 1 in. 1 Carbide Flat Bottom Counterbore, 4 Flutes, AlTiN Coated

Zoro # G811325290
Mfr # 731622-C3
product price: 
$118.99
/ea
Kodiak Cutting Tools No. 8 Counterbores On Size Capscrew Style 5495688
Kodiak Cutting Tools

No. 8 Counterbores On Size Capscrew Style

Zoro # G8653120
Mfr # 5495688
product price: 
$49.65
/ea
Kodiak Cutting Tools 7/8 Counterbore 1/32 Oversize Capscrew Style 5496095
Kodiak Cutting Tools

7/8 Counterbore 1/32 Oversize Capscrew Style

Zoro # G8642779
Mfr # 5496095
product price: 
$192.99
/ea
Link 2.5MM Co 3Fl 3.0 Pilot X 5.4 Cbore 6.35 Shank X 100 Oal 75-CO-519
Link

2.5MM Co 3Fl 3.0 Pilot X 5.4 Cbore 6.35 Shank X 100 Oal

Zoro # G7639977
Mfr # 75-CO-519
product price: 
$80.15
/ea
Link Ua4-5MM Metric Shcs HSS Counterbore 72-L2-512
Link

Ua4-5MM Metric Shcs HSS Counterbore

Zoro # G7643976
Mfr # 72-L2-512
product price: 
$26.65
/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
Porting Tools & Counterbores (993 items) - Page 8
  • First
  • Previous
  • 8
    of 28 pages
  • Next
  • Last
How was your search?

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

Drill BitsTapsHole Saws & CuttersReamersWrenches
Sockets & RatchetsMeasuring and Layout ToolsKnives, Cutters & SnipsPrecision Measuring ToolsScrewdrivers and Nutdrivers
5/8 counterborescientific cutting toolspilot counterborecounter bore setmetric shcs
1-1/4 in counterborecounterbores - flat bottomcounter bore pilotmetric counterborehigh speed steel

Sign up and save

Take 10% off your next order when you sign up for Zoro emails. Subscribe now to receive your promo code via email.

Follow us

  • Facebook
  • YouTube
  • LinkedIn
  • Instagram
Every part plays a part

Information

  • About Us
  • Accessibility
  • Careers
  • Inclusion
  • Giving Back
  • Resource Hub
  • Returns
  • Shipping

Shopping

  • Brands
  • Collections
  • My Account
  • Payments
  • Deals
  • Sitemap
  • Track My Order

Services

  • Customer Service
  • FAQs
  • Net 30 Terms
  • Reseller Program
  • Sell on Zoro
  • Participate in Research
  • Tax Exemption

Zoro, Inc

Connect

Customer service from real people

  • Phone: (855) 289-9676
  • Contact Us

© 2011-2026 Zoro Tools, Inc. All rights reserved.
  • Terms & Conditions
  • Terms of Access
  • Privacy Policy
Zoro, Inc