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
Close icon
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 11

Keo Counterbore, Metric, 71 mm 902-000-210
Keo

Counterbore, Metric, 71 mm

Zoro # G821726780
Mfr # 902-000-210
product price:  $59.29
/ea
Harvey Tool Counterbores - Flat Bottom, 0.1250" (1/8) 23408
Harvey Tool

Counterbores - Flat Bottom, 0.1250" (1/8)

Zoro # G7153845
Mfr # 23408
product price:  $51.29
/ea
Harvey Tool Counterbores - Flat Bottom 23420-C6
Harvey Tool

Counterbores - Flat Bottom

Zoro # G804195442
Mfr # 23420-C6
product price:  $92.59
/ea
Keo Counterbore, Decimal Inch, 6 in 902-000-305
Keo

Counterbore, Decimal Inch, 6 in

Zoro # G121727098
Mfr # 902-000-305
product price:  $146.99
/ea
Keo Counterbore, Decimal Inch, 7 in 902-000-299
Keo

Counterbore, Decimal Inch, 7 in

Zoro # G921726024
Mfr # 902-000-299
product price:  $306.99
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.2500" (1/4) 25516-C3
Harvey Tool

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

Zoro # G7248178
Mfr # 25516-C3
product price:  $114.99
/ea
Keo Counterbore, Decimal Inch, 6 in 902-000-162
Keo

Counterbore, Decimal Inch, 6 in

Zoro # G921726284
Mfr # 902-000-162
product price:  $177.99
/ea
Keo Counterbore, Decimal Inch, 7 in 902-000-298
Keo

Counterbore, Decimal Inch, 7 in

Zoro # G221724652
Mfr # 902-000-298
product price:  $432.99
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.1575", Overall Length: 3" 2554M
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.1575", Overall Length: 3"

Zoro # G7164808
Mfr # 2554M
product price:  $73.19
/ea
Keo Counterbore, Metric, 80 mm 902-000-225
Keo

Counterbore, Metric, 80 mm

Zoro # G321727430
Mfr # 902-000-225
product price:  $72.89
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.0787" 2542M-C3
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.0787"

Zoro # G7253960
Mfr # 2542M-C3
product price:  $69.95
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.0312" (1/32) 25431-C3
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.0312" (1/32)

Zoro # G7243269
Mfr # 25431-C3
product price:  $73.19
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.0394" 2541M
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.0394"

Zoro # G7161807
Mfr # 2541M
product price:  $61.69
/ea
Keo Counterbore, Decimal Inch, 3 in 902-000-099
Keo

Counterbore, Decimal Inch, 3 in

Zoro # G621726720
Mfr # 902-000-099
product price:  $63.69
/ea
Harvey Tool Counterbores - Flat Bottom, 0.2362" 2346M
Harvey Tool

Counterbores - Flat Bottom, 0.2362"

Zoro # G7252518
Mfr # 2346M
product price:  $71.29
/ea
Harvey Tool Counterbores - Flat Bottom, 0.1250" (1/8) 23408-C6
Harvey Tool

Counterbores - Flat Bottom, 0.1250" (1/8)

Zoro # G7154186
Mfr # 23408-C6
product price:  $61.39
/ea
Drill America No 3 .098mm Machine Screw Solid Counterbore DEWCBRSOL3
Drill America

No 3 .098mm Machine Screw Solid Counterbore

Zoro # G1739756
Mfr # DEWCBRSOL3
product price:  $10.59
/ea
Keo Counterbore, Decimal Inch, 3 in 902-000-096
Keo

Counterbore, Decimal Inch, 3 in

Zoro # G721727566
Mfr # 902-000-096
product price:  $62.19
/ea
Keo Counterbore, Decimal Inch, 5 in 902-000-135
Keo

Counterbore, Decimal Inch, 5 in

Zoro # G121726527
Mfr # 902-000-135
product price:  $93.39
/ea
Keo Counterbore, Metric, 100 mm 902-000-258
Keo

Counterbore, Metric, 100 mm

Zoro # G421725374
Mfr # 902-000-258
product price:  $92.19
/ea
Harvey Tool Counterbores - Flat Bottom, 0.0900" 23390
Harvey Tool

Counterbores - Flat Bottom, 0.0900"

Zoro # G7253954
Mfr # 23390
product price:  $51.29
/ea
Harvey Tool Counterbores - Flat Bottom, 0.6250" (5/8) 23440-C3
Harvey Tool

Counterbores - Flat Bottom, 0.6250" (5/8)

Zoro # G7240155
Mfr # 23440-C3
product price:  $282.99
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.2344" (15/64) 25515
Harvey Tool

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

Zoro # G7252606
Mfr # 25515
product price:  $101.99
/ea
Keo Counterbore, Decimal Inch, 5 in 902-000-311
Keo

Counterbore, Decimal Inch, 5 in

Zoro # G221726717
Mfr # 902-000-311
product price:  $110.99
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.2812" (9/32) 25518-C3
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.2812" (9/32)

Zoro # G7161956
Mfr # 25518-C3
product price:  $142.99
/ea
Harvey Tool Counterbores - Flat Bottom, 0.0394" 2331M-C3
Harvey Tool

Counterbores - Flat Bottom, 0.0394"

Zoro # G7148586
Mfr # 2331M-C3
product price:  $60.15
/ea
Drill America No 10 13/64" Continuous Pilot Capscrew Counterbore DEWCSCBR10
Drill America

No 10 13/64" Continuous Pilot Capscrew Counterbore

Zoro # G1741950
Mfr # DEWCSCBR10
product price:  $26.35
/ea
Keo Counterbore, Decimal Inch, 5 in 902-000-147
Keo

Counterbore, Decimal Inch, 5 in

Zoro # G421726210
Mfr # 902-000-147
product price:  $109.99
/ea
Keo Counterbore, Decimal Inch, 3 in 902-000-326
Keo

Counterbore, Decimal Inch, 3 in

Zoro # G621727291
Mfr # 902-000-326
product price:  $65.79
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.0394" 2541M-C3
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.0394"

Zoro # G7161037
Mfr # 2541M-C3
product price:  $71.89
/ea
Harvey Tool 0.1750'' Cutter DIA x 0.6250'', 5/8 Flute Length - 4 FL 23574
Harvey Tool

0.1750'' Cutter DIA x 0.6250'', 5/8 Flute Length - 4 FL

Zoro # G413081570
Mfr # 23574
product price:  $48.49
/ea
Keo Counterbore, Metric, 71 mm 902-000-222
Keo

Counterbore, Metric, 71 mm

Zoro # G321724835
Mfr # 902-000-222
product price:  $64.39
/ea
Harvey Tool Counterbores - Flat Bottom, 0.0469" (3/64) 23347
Harvey Tool

Counterbores - Flat Bottom, 0.0469" (3/64)

Zoro # G7151474
Mfr # 23347
product price:  $51.29
/ea
Keo Counterbore, Decimal Inch, 3 in 902-000-328
Keo

Counterbore, Decimal Inch, 3 in

Zoro # G521725038
Mfr # 902-000-328
product price:  $63.39
/ea
Keo Counterbore, Decimal Inch, 7 in 902-000-171
Keo

Counterbore, Decimal Inch, 7 in

Zoro # G421724704
Mfr # 902-000-171
product price:  $258.99
/ea
Keo Counterbore, Decimal Inch, 5 in 902-000-312
Keo

Counterbore, Decimal Inch, 5 in

Zoro # G021726719
Mfr # 902-000-312
product price:  $110.99
/ea
Porting Tools & Counterbores (993 items) - Page 11
  • First
  • Previous
  • 11
    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 & CuttersEnd MillsWrenches
Precision Measuring ToolsMeasuring and Layout ToolsKnives, Cutters & SnipsSockets & RatchetsPower Saw Blades
counter bore pilotmetric counterbore set5/8 counterborepilot counterboreinterchangeable pilot counterbore
high speed steelscientific cutting toolsmetric shcs1-1/4 in counterboremetric counterbore

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