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
  8. /
  9. Counterbores

Counterbores (927 items) - Page 19

Kodiak Cutting Tools 1/4 Counterbore 1/64 Oversize Capscrew Style 5495864
Kodiak Cutting Tools

1/4 Counterbore 1/64 Oversize Capscrew Style

Zoro # G8614806
Mfr # 5495864
product price:  $53.95
/ea
Super Tool Counterbore, 1-1/8" D, Carbide Tipped 59815
Super Tool

Counterbore, 1-1/8" D, Carbide Tipped

Zoro # G0329633
Mfr # 59815
product price:  $145.99
/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:  $217.99
/ea
Link 1/4" Co 3Fl 0.281 Pilot X 0.414 Cbore 5/16" Shank X 4" Oal 50-CO-184
Link

1/4" Co 3Fl 0.281 Pilot X 0.414 Cbore 5/16" Shank X 4" Oal

Zoro # G7637317
Mfr # 50-CO-184
product price:  $78.85
/ea
Link Ua7-14MM Metric Shcs HSS Counterbore 72-L2-517
Link

Ua7-14MM Metric Shcs HSS Counterbore

Zoro # G7646898
Mfr # 72-L2-517
product price:  $49.75
/ea
Super Tool Counterbore, 2" D, Carbide Tipped 56428
Super Tool

Counterbore, 2" D, Carbide Tipped

Zoro # G0330248
Mfr # 56428
product price:  $414.99
/ea
Super Tool Counterbore, 1-13/16" D, Carbide Tipped 56425
Super Tool

Counterbore, 1-13/16" D, Carbide Tipped

Zoro # G0329922
Mfr # 56425
product price:  $396.99
/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
Link Ua7-12MM Metric Shcs HSS Counterbore 72-L2-516
Link

Ua7-12MM Metric Shcs HSS Counterbore

Zoro # G7643985
Mfr # 72-L2-516
product price:  $51.65
/ea
Internal Tool A Nc-672-750 N/C Counterbore 85-6721
Internal Tool

A Nc-672-750 N/C Counterbore

Zoro # G700402484
Mfr # 85-6721
product price:  $444.99
/ea
Super Tool Counterbore, 19/32" D, Carbide Tipped 5795938
Super Tool

Counterbore, 19/32" D, Carbide Tipped

Zoro # G0330062
Mfr # 5795938
product price:  $125.99
/ea
Internal Tool A Nc-281-312 N/C Counterbore 85-2811
Internal Tool

A Nc-281-312 N/C Counterbore

Zoro # G600402386
Mfr # 85-2811
product price:  $82.79
/ea
Link 16MM Co 3Fl 16.8 Pilot X 24.8 Cbore 12.7 Shank X 150 Oal 75-CO-528
Link

16MM Co 3Fl 16.8 Pilot X 24.8 Cbore 12.7 Shank X 150 Oal

Zoro # G7636206
Mfr # 75-CO-528
product price:  $131.99
/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:  $185.99
/ea
Super Tool Counterbore, 17/32" D, Carbide Tipped 5775312
Super Tool

Counterbore, 17/32" D, Carbide Tipped

Zoro # G0330449
Mfr # 5775312
product price:  $135.99
/ea
Link 5/8" Co 3Fl 0.655 Pilot X 0.978 Cbore 5/8" Shank X 6" Oal 50-CO-189
Link

5/8" Co 3Fl 0.655 Pilot X 0.978 Cbore 5/8" Shank X 6" Oal

Zoro # G7642698
Mfr # 50-CO-189
product price:  $183.99
/ea
Garant Interchangeable Pilot Pin for Counterbore 156520 33-40, 26 mm 156620 10X26
Garant

Interchangeable Pilot Pin for Counterbore 156520 33-40, 26 mm

Zoro # G614389789
Mfr # 156620 10X26
product price:  $46.79
/ea
Link 3/8" 3Xd HSS Se .406 X 1.218 Drill .593 Cbore 1/2 Shank 3-1/2 Oal 50-L2-386
Link

3/8" 3Xd HSS Se .406 X 1.218 Drill .593 Cbore 1/2 Shank 3-1/2 Oal

Zoro # G7638805
Mfr # 50-L2-386
product price:  $64.29
/ea
Super Tool Counterbore, 27/32" D, Carbide Tipped 5798438
Super Tool

Counterbore, 27/32" D, Carbide Tipped

Zoro # G0330187
Mfr # 5798438
product price:  $158.99
/ea
Super Tool Counterbore, 17/32" D, Carbide Tipped 5795312
Super Tool

Counterbore, 17/32" D, Carbide Tipped

Zoro # G0330169
Mfr # 5795312
product price:  $148.99
/ea
Link 4MM Co 3Fl 4.8 Pilot X 7.8 Cbore 6.35 Shank X 100 Oal 75-CO-521
Link

4MM Co 3Fl 4.8 Pilot X 7.8 Cbore 6.35 Shank X 100 Oal

Zoro # G7638839
Mfr # 75-CO-521
product price:  $66.95
/ea
Super Tool Counterbore, 27/32" D, Carbide Tipped 5778438
Super Tool

Counterbore, 27/32" D, Carbide Tipped

Zoro # G0330290
Mfr # 5778438
product price:  $145.99
/ea
Tungaloy Solid End Mill Head, VGC120L10.0R04-, PK2 6859334
Tungaloy

Solid End Mill Head, VGC120L10.0R04-, PK2

Zoro # G401779090
Mfr # 6859334
product price:  $197.99
/pk 2, $99.00/ea
Tungaloy Solid End Mill Head, VGC120L10.0R20-, PK2 6859335
Tungaloy

Solid End Mill Head, VGC120L10.0R20-, PK2

Zoro # G901779019
Mfr # 6859335
product price:  $201.99
/pk 2, $101.00/ea
Morse Cap Screw Counterbore, Straight Shank, Series 1766, 6 mm Screw, 04134 Bore Dia, 618 Overall Le 25749
Morse

Cap Screw Counterbore, Straight Shank, Series 1766, 6 mm Screw, 04134 Bore Dia, 618 Overall Le

Zoro # G808029064
Mfr # 25749
product price:  $82.25
/ea
Link Ua7-3/8 English Shcs HSS Counterbore 60-L2-299
Link

Ua7-3/8 English Shcs HSS Counterbore

Zoro # G7638744
Mfr # 60-L2-299
product price:  $30.99
/ea
Super Tool Counterbore, 1-9/16" D, Carbide Tipped 56422
Super Tool

Counterbore, 1-9/16" D, Carbide Tipped

Zoro # G0329618
Mfr # 56422
product price:  $251.99
/ea
Super Tool Counterbore, 13/32" D, Carbide Tipped 5794062
Super Tool

Counterbore, 13/32" D, Carbide Tipped

Zoro # G0330053
Mfr # 5794062
product price:  $114.99
/ea
Morse Cap Screw Counterbore, Series 1766, 4 Screw, 0199 Bore Dia, 378 Overall Length, 4 Flutes, 01 25701
Morse

Cap Screw Counterbore, Series 1766, 4 Screw, 0199 Bore Dia, 378 Overall Length, 4 Flutes, 01

Zoro # G108028958
Mfr # 25701
product price:  $53.99
/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:  $47.99
/ea
Kodiak Cutting Tools No. 1 Counterbores 1/32 Oversize Capscrew Style 5496106
Kodiak Cutting Tools

No. 1 Counterbores 1/32 Oversize Capscrew Style

Zoro # G8615357
Mfr # 5496106
product price:  $241.99
/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:  $67.69
/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
Internal Tool A Nc-750-750 N/C Counterbore 85-7501
Internal Tool

A Nc-750-750 N/C Counterbore

Zoro # G900402642
Mfr # 85-7501
product price:  $441.99
/ea
Internal Tool A Nc-234-250 N/C Counterbore 85-2341
Internal Tool

A Nc-234-250 N/C Counterbore

Zoro # G100402404
Mfr # 85-2341
product price:  $59.59
/ea
Internal Tool A Nc-578-625 N/C Counterbore 85-5781
Internal Tool

A Nc-578-625 N/C Counterbore

Zoro # G200402502
Mfr # 85-5781
product price:  $331.99
/ea
Counterbores (927 items) - Page 19
  • First
  • Previous
  • 19
    of 26 pages
  • Next
  • Last
How was your search?

About Counterbores

Counterbores are specialized tools utilized in creating enlarged, flat-bottomed holes in various materials, primarily metal. They're essential when a fastener's head needs to be level with or beneath the surface of the worked material. Available in an array of sizes and shapes, these tools can accommodate diverse types of fasteners and feature different tip configurations like straight flute or spiral flute based on their intended use. Counterboring speeds differ according to the material being processed. These durable tools are typically crafted from high-speed steel (HSS) or cobalt steel for enhanced cutting performance, sometimes coated with titanium nitride (TiN) for superior wear resistance and lubricity when dealing with tougher materials such as stainless steel or aluminum. Industries ranging from automotive manufacturing and aerospace engineering to medical device production widely employ counterbores for precise hole creation necessary for mounting screws and other fasteners.

Related Categories

Hole SawsJobber Length Drill BitsReduced Shank Drill BitsCountersinksSquare End Mills
Drill Bit SetsCenter DrillsTap SetsTap WrenchesAuger Drill Bits
cleveland counterborecounter bore pilot5/8 counterborepilot counterboreinterchangeable pilot counterbore
high speed steelmetric shcs1-1/4 in counterbore6-piece damask jacquard/solidcounter 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