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 20

Harvey Tool Counterbores - Flat Bottom, 0.3437" (11/32), Flute Length: 1" 23422
Harvey Tool

Counterbores - Flat Bottom, 0.3437" (11/32), Flute Length: 1"

Zoro # G7150984
Mfr # 23422
product price: 
$99.39
/ea
Harvey Tool Counterbores - Flat Bottom, 0.1406" (9/64) 23409
Harvey Tool

Counterbores - Flat Bottom, 0.1406" (9/64)

Zoro # G7149338
Mfr # 23409
product price: 
$49.15
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.1562" (5/32) 25510-C3
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.1562" (5/32)

Zoro # G7255415
Mfr # 25510-C3
product price: 
$85.15
/ea
Harvey Tool Counterbores - Flat Bottom, 0.1875" (3/16) 23412-C3
Harvey Tool

Counterbores - Flat Bottom, 0.1875" (3/16)

Zoro # G7259877
Mfr # 23412-C3
product price: 
$58.29
/ea
Harvey Tool Counterbores - Flat Bottom, 0.5000" (1/2) 23432
Harvey Tool

Counterbores - Flat Bottom, 0.5000" (1/2)

Zoro # G7160504
Mfr # 23432
product price: 
$150.99
/ea
Harvey Tool Counterbores - Flat Bottom, 0.1719" (11/64) 23411-C3
Harvey Tool

Counterbores - Flat Bottom, 0.1719" (11/64)

Zoro # G7152515
Mfr # 23411-C3
product price: 
$56.45
/ea
Harvey Tool Counterbores - Flat Bottom, 0.2344" (15/64) 23415-C3
Harvey Tool

Counterbores - Flat Bottom, 0.2344" (15/64)

Zoro # G7150957
Mfr # 23415-C3
product price: 
$78.59
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.1719" (11/64) 25511-C3
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.1719" (11/64)

Zoro # G7242885
Mfr # 25511-C3
product price: 
$85.79
/ea
Drill America 5/16" 11/32" Continuous Pilot Capscrew Counterbore DEWCSCBR5/16
Drill America

5/16" 11/32" Continuous Pilot Capscrew Counterbore

Zoro # G1747404
Mfr # DEWCSCBR5/16
product price: 
$31.29
/ea
Harvey Tool Counterbores - Flat Bottom, 0.3281" (21/64) 23421
Harvey Tool

Counterbores - Flat Bottom, 0.3281" (21/64)

Zoro # G7148604
Mfr # 23421
product price: 
$94.39
/ea
Harvey Tool Counterbores - Flat Bottom, 0.1875" (3/16), Overall Length: 2" 23412-C6
Harvey Tool

Counterbores - Flat Bottom, 0.1875" (3/16), Overall Length: 2"

Zoro # G7153206
Mfr # 23412-C6
product price: 
$60.49
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.1406" (9/64) 25509
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.1406" (9/64)

Zoro # G7242964
Mfr # 25509
product price: 
$64.15
/ea
Harvey Tool Counterbores - Flat Bottom, 0.4062" (13/32) 23426-C3
Harvey Tool

Counterbores - Flat Bottom, 0.4062" (13/32)

Zoro # G7159576
Mfr # 23426-C3
product price: 
$142.99
/ea
Harvey Tool Counterbores - Flat Bottom, 0.2187" (7/32) 23414
Harvey Tool

Counterbores - Flat Bottom, 0.2187" (7/32)

Zoro # G7151797
Mfr # 23414
product price: 
$67.29
/ea
Harvey Tool Counterbores - Flat Bottom, 0.2656" (17/64) 23417
Harvey Tool

Counterbores - Flat Bottom, 0.2656" (17/64)

Zoro # G7153215
Mfr # 23417
product price: 
$86.15
/ea
Drill America 1/2" 17/32" Continuous Pilot Capscrew Counterbore DEWCSCBR1/2
Drill America

1/2" 17/32" Continuous Pilot Capscrew Counterbore

Zoro # G1739406
Mfr # DEWCSCBR1/2
product price: 
$40.29
/ea
Harvey Tool Counterbores - Flat Bottom, 0.1406" (9/64) 23409-C3
Harvey Tool

Counterbores - Flat Bottom, 0.1406" (9/64)

Zoro # G7258985
Mfr # 23409-C3
product price: 
$56.49
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.1562" (5/32) 25510
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.1562" (5/32)

Zoro # G7245195
Mfr # 25510
product price: 
$73.19
/ea
Harvey Tool Counterbores - Flat Bottom, 0.2969" (19/64) 23419
Harvey Tool

Counterbores - Flat Bottom, 0.2969" (19/64)

Zoro # G7154448
Mfr # 23419
product price: 
$86.15
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.1250" (1/8), Neck Dia.: 0.1130" 25508
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.1250" (1/8), Neck Dia.: 0.1130"

Zoro # G7258294
Mfr # 25508
product price: 
$62.69
/ea
Harvey Tool Counterbores - Flat Bottom, 0.4687" (15/32) 23430-C3
Harvey Tool

Counterbores - Flat Bottom, 0.4687" (15/32)

Zoro # G7159208
Mfr # 23430-C3
product price: 
$178.99
/ea
Harvey Tool Counterbores - Flat Bottom, 0.2500" (1/4), Flute Length: 7/8" 23416-C3
Harvey Tool

Counterbores - Flat Bottom, 0.2500" (1/4), Flute Length: 7/8"

Zoro # G7151526
Mfr # 23416-C3
product price: 
$75.25
/ea
Harvey Tool Counterbores - Flat Bottom, 0.2500" (1/4) 23416-C6
Harvey Tool

Counterbores - Flat Bottom, 0.2500" (1/4)

Zoro # G7149356
Mfr # 23416-C6
product price: 
$81.89
/ea
Harvey Tool Counterbores - Flat Bottom, 0.2812" (9/32), Number of Flutes: 4 23418
Harvey Tool

Counterbores - Flat Bottom, 0.2812" (9/32), Number of Flutes: 4

Zoro # G7152460
Mfr # 23418
product price: 
$82.19
/ea
Drill America No 6 .150 Continuous Pilot Capscrew Counterbore DEWCSCBR6
Drill America

No 6 .150 Continuous Pilot Capscrew Counterbore

Zoro # G1742845
Mfr # DEWCSCBR6
product price: 
$25.25
/ea
Harvey Tool Counterbores - Flat Bottom, 0.2187" (7/32) 23414-C3
Harvey Tool

Counterbores - Flat Bottom, 0.2187" (7/32)

Zoro # G7259204
Mfr # 23414-C3
product price: 
$79.39
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.1719" (11/64) 25511
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.1719" (11/64)

Zoro # G7257646
Mfr # 25511
product price: 
$73.19
/ea
Harvey Tool Counterbores - Flat Bottom, 0.2969" (19/64) 23419-C3
Harvey Tool

Counterbores - Flat Bottom, 0.2969" (19/64)

Zoro # G7151395
Mfr # 23419-C3
product price: 
$97.15
/ea
Harvey Tool Counterbores - Flat Bottom, 0.4375" (7/16) 23428-C3
Harvey Tool

Counterbores - Flat Bottom, 0.4375" (7/16)

Zoro # G7158544
Mfr # 23428-C3
product price: 
$142.99
/ea
Drill America 1" 1-1/16" Continuous Pilot Capscrew Counterbore DEWCSCBR1INCH
Drill America

1" 1-1/16" Continuous Pilot Capscrew Counterbore

Zoro # G1746424
Mfr # DEWCSCBR1INCH
product price: 
$152.99
/ea
Harvey Tool Counterbores - Flat Bottom, 0.1562" (5/32) 23410
Harvey Tool

Counterbores - Flat Bottom, 0.1562" (5/32)

Zoro # G7153775
Mfr # 23410
product price: 
$49.15
/ea
Harvey Tool Counterbores - Flat Bottom, 0.5000" (1/2) 23432-C3
Harvey Tool

Counterbores - Flat Bottom, 0.5000" (1/2)

Zoro # G7162927
Mfr # 23432-C3
product price: 
$174.99
/ea
Harvey Tool Counterbores - Flat Bottom, 0.3281" (21/64), Flute Length: 1" 23421-C3
Harvey Tool

Counterbores - Flat Bottom, 0.3281" (21/64), Flute Length: 1"

Zoro # G7151736
Mfr # 23421-C3
product price: 
$116.99
/ea
Cleveland Counterbore, 1.375" L, 0.125" dia., Bright C46548
Cleveland

Counterbore, 1.375" L, 0.125" dia., Bright

Zoro # G4869809
Mfr # C46548
product price: 
$34.69
/ea
Scientific Cutting Tools Port Tool, MS33649, Solid, 1/4-28 UNJF MS33649-1S
Scientific Cutting Tools

Port Tool, MS33649, Solid, 1/4-28 UNJF

Zoro # G8261915
Mfr # MS33649-1S
product price: 
$238.99
/ea
Scientific Cutting Tools Port Tool, 2-1/2"-12, 2-1/2 in, Straight MS16142-32S
Scientific Cutting Tools

Port Tool, 2-1/2"-12, 2-1/2 in, Straight

Zoro # G8167844
Mfr # MS16142-32S
product price: 
$584.99
/ea
Porting Tools & Counterbores (993 items) - Page 20
  • First
  • Previous
  • 20
    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
pilot counterboremetric counterboreinterchangeable pilot counterbore5/8 counterborecounter bore pilot
1-1/4 in counterborehigh speed steelcounterbores - flat bottommetric shcscounter bore set

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