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 9

Harvey Tool Counterbores - Flat Bottom, 0.4724" 23476
Harvey Tool

Counterbores - Flat Bottom, 0.4724"

Zoro # G7242989
Mfr # 23476
product price:  $150.99
/ea
Harvey Tool 0.3320'' Cutter DIA x 1.0000'', 1 Flute Length - 4 FL - AlTiN Coated 23731-C3
Harvey Tool

0.3320'' Cutter DIA x 1.0000'', 1 Flute Length - 4 FL - AlTiN Coated

Zoro # G813082092
Mfr # 23731-C3
product price:  $112.99
/ea
Keo Counterbore, Decimal Inch, 7 in 902-000-186
Keo

Counterbore, Decimal Inch, 7 in

Zoro # G421727217
Mfr # 902-000-186
product price:  $518.99
/ea
Keo Counterbore, Metric, 71 mm 902-000-198
Keo

Counterbore, Metric, 71 mm

Zoro # G721725548
Mfr # 902-000-198
product price:  $53.79
/ea
Harvey Tool Counterbores - Flat Bottom, 0.1968", Flute Length: 3/4" 2345M
Harvey Tool

Counterbores - Flat Bottom, 0.1968", Flute Length: 3/4"

Zoro # G7242937
Mfr # 2345M
product price:  $64.29
/ea
Harvey Tool Counterbores - Flat Bottom, 0.2362" 2346M-C6
Harvey Tool

Counterbores - Flat Bottom, 0.2362"

Zoro # G7255850
Mfr # 2346M-C6
product price:  $81.89
/ea
Harvey Tool Counterbores - Flat Bottom, 0.0700" 23370-C3
Harvey Tool

Counterbores - Flat Bottom, 0.0700"

Zoro # G7149365
Mfr # 23370-C3
product price:  $58.49
/ea
Keo Counterbore, Decimal Inch, 3 in 902-000-075
Keo

Counterbore, Decimal Inch, 3 in

Zoro # G221726151
Mfr # 902-000-075
product price:  $54.15
/ea
Harvey Tool 0.2420'' Cutter DIA x 0.8750'', 7/8 Flute Length - 4 FL 23641
Harvey Tool

0.2420'' Cutter DIA x 0.8750'', 7/8 Flute Length - 4 FL

Zoro # G913081735
Mfr # 23641
product price:  $66.39
/ea
Keo Counterbore, Metric, 80 mm 902-000-234
Keo

Counterbore, Metric, 80 mm

Zoro # G821726940
Mfr # 902-000-234
product price:  $75.39
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.4375" (7/16) 25528-C3
Harvey Tool

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

Zoro # G7265504
Mfr # 25528-C3
product price:  $192.99
/ea
Harvey Tool Counterbores - Flat Bottom, 0.1094" (7/64), Shank Dia.: 1/8" 23407
Harvey Tool

Counterbores - Flat Bottom, 0.1094" (7/64), Shank Dia.: 1/8"

Zoro # G7154615
Mfr # 23407
product price:  $51.29
/ea
Keo Counterbore, Decimal Inch, 3 in 902-000-105
Keo

Counterbore, Decimal Inch, 3 in

Zoro # G121725889
Mfr # 902-000-105
product price:  $64.49
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.2187" (7/32), Number of Flutes: 4 25514
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.2187" (7/32), Number of Flutes: 4

Zoro # G7261444
Mfr # 25514
product price:  $105.99
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.2656" (17/64) 25517-C3
Harvey Tool

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

Zoro # G7166436
Mfr # 25517-C3
product price:  $137.99
/ea
Harvey Tool 0.2420'' Cutter DIA x 0.8750'', 7/8 Flute Length - 4 FL - AlTiN Coated 23641-C3
Harvey Tool

0.2420'' Cutter DIA x 0.8750'', 7/8 Flute Length - 4 FL - AlTiN Coated

Zoro # G413082188
Mfr # 23641-C3
product price:  $76.69
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.5000" (1/2) 25532
Harvey Tool

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

Zoro # G7266089
Mfr # 25532
product price:  $206.99
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.1094" (7/64) 25507-C3
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.1094" (7/64)

Zoro # G7247767
Mfr # 25507-C3
product price:  $71.19
/ea
Harvey Tool Counterbores - Flat Bottom, 0.0787" 2332M-C3
Harvey Tool

Counterbores - Flat Bottom, 0.0787"

Zoro # G7257856
Mfr # 2332M-C3
product price:  $59.99
/ea
Keo Counterbore, Metric, 100 mm 902-000-246
Keo

Counterbore, Metric, 100 mm

Zoro # G221727196
Mfr # 902-000-246
product price:  $80.19
/ea
Harvey Tool Counterbores - Flat Bottom, 0.0781" (5/64) 23378-C3
Harvey Tool

Counterbores - Flat Bottom, 0.0781" (5/64)

Zoro # G7151964
Mfr # 23378-C3
product price:  $59.49
/ea
Harvey Tool Counterbores - Flat Bottom, 0.1250" (1/8) 23408-C3
Harvey Tool

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

Zoro # G7149310
Mfr # 23408-C3
product price:  $59.49
/ea
Keo Counterbore, Decimal Inch, 3 in 902-000-087
Keo

Counterbore, Decimal Inch, 3 in

Zoro # G321727355
Mfr # 902-000-087
product price:  $59.39
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.1968" 2555M
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.1968"

Zoro # G7167696
Mfr # 2555M
product price:  $101.99
/ea
Keo Counterbore, Decimal Inch, 7 in 902-000-300
Keo

Counterbore, Decimal Inch, 7 in

Zoro # G121727166
Mfr # 902-000-300
product price:  $306.99
/ea
Keo Counterbore, Decimal Inch, 3 in 902-000-329
Keo

Counterbore, Decimal Inch, 3 in

Zoro # G821726063
Mfr # 902-000-329
product price:  $63.39
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.3937" 2550M
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.3937"

Zoro # G7157537
Mfr # 2550M
product price:  $188.99
/ea
Keo Counterbore, Decimal Inch, 6 in 902-000-153
Keo

Counterbore, Decimal Inch, 6 in

Zoro # G921726390
Mfr # 902-000-153
product price:  $125.99
/ea
Keo Counterbore, Decimal Inch, 3 in 902-000-090
Keo

Counterbore, Decimal Inch, 3 in

Zoro # G421725336
Mfr # 902-000-090
product price:  $61.89
/ea
Keo Counterbore, Decimal Inch, 5 in 902-000-307
Keo

Counterbore, Decimal Inch, 5 in

Zoro # G821726605
Mfr # 902-000-307
product price:  $127.99
/ea
Keo Counterbore, Decimal Inch, 7 in 902-000-296
Keo

Counterbore, Decimal Inch, 7 in

Zoro # G121726442
Mfr # 902-000-296
product price:  $585.99
/ea
Drill America 1/2" X 7/16" Pilots for Counterbore DEWPIL1/2X7/16
Drill America

1/2" X 7/16" Pilots for Counterbore

Zoro # G1742084
Mfr # DEWPIL1/2X7/16
product price:  $8.55
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.2656" (17/64) 25517
Harvey Tool

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

Zoro # G7245439
Mfr # 25517
product price:  $129.99
/ea
Harvey Tool Counterbores - Flat Bottom, 0.1094" (7/64) 23407-C3
Harvey Tool

Counterbores - Flat Bottom, 0.1094" (7/64)

Zoro # G7152436
Mfr # 23407-C3
product price:  $60.15
/ea
Keo Counterbore, Metric, 80 mm 902-000-228
Keo

Counterbore, Metric, 80 mm

Zoro # G721725272
Mfr # 902-000-228
product price:  $69.29
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.3125" (5/16) 25520-C3
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.3125" (5/16)

Zoro # G7166034
Mfr # 25520-C3
product price:  $137.99
/ea
Porting Tools & Counterbores (993 items) - Page 9
  • First
  • Previous
  • 9
    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