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 Customer Service
Cart Icon
0
Cart Icon
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 (929 items) - Page 17

Keo Counterbore, 1/32 Clearance, Size 1/4, Co 902-000-018
Keo

Counterbore, 1/32 Clearance, Size 1/4, Co

Zoro # G2013435
Mfr # 902-000-018
product price:  $71.15
/ea
Keo Counterbore, 1/32 Clearance, Size 3/8, Co 902-000-024
Keo

Counterbore, 1/32 Clearance, Size 3/8, Co

Zoro # G2486041
Mfr # 902-000-024
product price:  $83.69
/ea
Cleveland Counterbore, 3.000" L, 0.219" dia., Bright C91695
Cleveland

Counterbore, 3.000" L, 0.219" dia., Bright

Zoro # G4834258
Mfr # C91695
product price:  $104.99
/ea
Cleveland Port Tool, 3.813" L, 0.296" dia., Bright C46425
Cleveland

Port Tool, 3.813" L, 0.296" dia., Bright

Zoro # G4868521
Mfr # C46425
product price:  $139.99
/ea
Cleveland Port Tool, 2.813" L, 0.250" dia., Bright C46894
Cleveland

Port Tool, 2.813" L, 0.250" dia., Bright

Zoro # G4777217
Mfr # C46894
product price:  $115.99
/ea
Cleveland Port Tool, 3.000" L, 0.234" dia., Bright C46421
Cleveland

Port Tool, 3.000" L, 0.234" dia., Bright

Zoro # G4778702
Mfr # C46421
product price:  $117.99
/ea
Keo No 6 through 1/2" +1/64 Oversize Kounterbore Set 902-000-041
Keo

No 6 through 1/2" +1/64 Oversize Kounterbore Set

Zoro # G3326023
Mfr # 902-000-041
product price:  $544.99
/ea
Cleveland Counterbore, 6.000" L, 0.438" dia., Bright C91710
Cleveland

Counterbore, 6.000" L, 0.438" dia., Bright

Zoro # G4799669
Mfr # C91710
product price:  $141.99
/ea
Super Tool Counterbore, 21/32" D, Carbide Tipped 5796562
Super Tool

Counterbore, 21/32" D, Carbide Tipped

Zoro # G0330150
Mfr # 5796562
product price:  $121.99
/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 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
Super Tool Reduced Shank Counterbore, 17/32" D 52217
Super Tool

Reduced Shank Counterbore, 17/32" D

Zoro # G0331401
Mfr # 52217
product price:  $85.89
/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
Super Tool Counterbore, 13/32" D, Carbide Tipped 5794062
Super Tool

Counterbore, 13/32" D, Carbide Tipped

Zoro # G0330053
Mfr # 5794062
product price:  $98.89
/ea
Link Ua4-6MM Metric Shcs HSS Counterbore 72-L2-513
Link

Ua4-6MM Metric Shcs HSS Counterbore

Zoro # G7642725
Mfr # 72-L2-513
product price:  $32.75
/ea
Link Ua6-5/16 English Shcs HSS Counterbore 60-L2-298
Link

Ua6-5/16 English Shcs HSS Counterbore

Zoro # G7638787
Mfr # 60-L2-298
product price:  $27.89
/ea
Super Tool Counterbore, 1/2" D, Carbide Tipped 56405
Super Tool

Counterbore, 1/2" D, Carbide Tipped

Zoro # G0330029
Mfr # 56405
product price:  $100.99
/ea
Hhip 3/4 X 13/16 High Speed Steel 3 Flute Solid  Pilot Counterbore 2007-0034
Hhip

3/4 X 13/16 High Speed Steel 3 Flute Solid Pilot Counterbore

Zoro # G2467956
Mfr # 2007-0034
product price:  $28.25
/ea
Super Tool Reduced Shank Counterbore, 1-5/16" D 52242
Super Tool

Reduced Shank Counterbore, 1-5/16" D

Zoro # G0331429
Mfr # 52242
product price:  $159.99
/ea
Super Tool Counterbore, 1/2" D, Carbide Tipped 59805
Super Tool

Counterbore, 1/2" D, Carbide Tipped

Zoro # G0329977
Mfr # 59805
product price:  $99.29
/ea
Super Tool Reduced Shank Counterbore, 1-9/16" D 52250
Super Tool

Reduced Shank Counterbore, 1-9/16" D

Zoro # G0331587
Mfr # 52250
product price:  $220.99
/ea
Super Tool Reduced Shank Counterbore, 1-1/4" D 52240
Super Tool

Reduced Shank Counterbore, 1-1/4" D

Zoro # G0331532
Mfr # 52240
product price:  $220.99
/ea
Garant Interchangeable Pilot Pin for Counterbore 156520 24, 12 mm 156620 6X12
Garant

Interchangeable Pilot Pin for Counterbore 156520 24, 12 mm

Zoro # G414389705
Mfr # 156620 6X12
product price:  $36.45
/ea
Super Tool Reduced Shank Counterbore, 11/32" D 52211
Super Tool

Reduced Shank Counterbore, 11/32" D

Zoro # G0331447
Mfr # 52211
product price:  $68.69
/ea
Kodiak Cutting Tools 7/8 Counterbore On Size Capscrew Style 5495787
Kodiak Cutting Tools

7/8 Counterbore On Size Capscrew Style

Zoro # G8617965
Mfr # 5495787
product price:  $190.99
/ea
Morse Cap Screw Counterbore, Straight Shank, Series 1766, 8 mm Screw, 05315 Bore Dia, 612 Overall Le 25750
Morse

Cap Screw Counterbore, Straight Shank, Series 1766, 8 mm Screw, 05315 Bore Dia, 612 Overall Le

Zoro # G608029127
Mfr # 25750
product price:  $89.95
/ea
Super Tool Reduced Shank Counterbore, 1-11/16" D 52254
Super Tool

Reduced Shank Counterbore, 1-11/16" D

Zoro # G0331359
Mfr # 52254
product price:  $240.99
/ea
Super Tool Reduced Shank Counterbore, 1-1/16" D 52234
Super Tool

Reduced Shank Counterbore, 1-1/16" D

Zoro # G0331261
Mfr # 52234
product price:  $170.99
/ea
Super Tool Counterbore, 2" D, Carbide Tipped 56428
Super Tool

Counterbore, 2" D, Carbide Tipped

Zoro # G0330248
Mfr # 56428
product price:  $358.99
/ea
Hhip 1/4 X 3/8" Shank High Speed Steel 2 Flute Solid  Cap Screw Counterbore 2007-0105
Hhip

1/4 X 3/8" Shank High Speed Steel 2 Flute Solid Cap Screw Counterbore

Zoro # G2468193
Mfr # 2007-0105
product price:  $17.99
/ea
Hhip M10 X 11mm HSS 3 Flute Straight Shank Solid Pilot Counterbore 2007-0064
Hhip

M10 X 11mm HSS 3 Flute Straight Shank Solid Pilot Counterbore

Zoro # G2468157
Mfr # 2007-0064
product price:  $41.99
/ea
Super Tool Reduced Shank Counterbore, 1-5/8" D 52252
Super Tool

Reduced Shank Counterbore, 1-5/8" D

Zoro # G0331383
Mfr # 52252
product price:  $272.99
/ea
Hhip No 10 X 13/64" High Speed Steel 3 Flute Solid Pilot Counterbore 2007-0010
Hhip

No 10 X 13/64" High Speed Steel 3 Flute Solid Pilot Counterbore

Zoro # G2467947
Mfr # 2007-0010
product price:  $13.65
/ea
Garant Interchangeable Pilot Pin for Counterbore 156520 18-20, 10.2 mm 156620 5X10,2
Garant

Interchangeable Pilot Pin for Counterbore 156520 18-20, 10.2 mm

Zoro # G714389665
Mfr # 156620 5X10,2
product price:  $31.79
/ea
Tungaloy Solid End Mill Head, VGC100L09.0R10-, PK2 6859367
Tungaloy

Solid End Mill Head, VGC100L09.0R10-, PK2

Zoro # G801779089
Mfr # 6859367
product price:  $126.99
/pk 2, $63.50/ea
No Product Image Available
Keo

Counterbore, Decimal Inch, 6 in

Zoro # G721726910
Mfr # 902-000-303
product price:  $185.99
/ea
Counterbores (929 items) - Page 17
  • First
  • Previous
  • 17
    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

Jobber Length Drill BitsCountersinksReduced Shank Drill BitsHole SawsSquare End Mills
Carbide End MillsHex DiesRound DiesSpiral Point 2-Flute TapsSpiral Flute 3-Flute Taps
6-piece damask jacquard/solidcounter bore sethigh speed steelcounter bore1-1/4 in counterbore
cleveland counterboremetric shcscounter bore pilotpilot counterboreinterchangeable pilot 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