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  1. Home
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  3. Tools & Machining
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  5. Cutting Tools
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  7. Porting Tools & Counterbores
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  9. Counterbores
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Counterbores (929 items) - Page 6

Drill America No 8 11/64" Continuous Pilot Capscrew Counterbore DEWCSCBR8
Drill America

No 8 11/64" Continuous Pilot Capscrew Counterbore

Zoro # G1741278
Mfr # DEWCSCBR8
product price:  $23.19
/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:  $29.79
/ea
Cleveland Port Tool, 2.813" L, 0.250" dia., Bright C46904
Cleveland

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

Zoro # G4857470
Mfr # C46904
product price:  $171.99
/ea
Cleveland Port Tool, 4.063" L, 0.375" dia., Bright C46428
Cleveland

Port Tool, 4.063" L, 0.375" dia., Bright

Zoro # G4760828
Mfr # C46428
product price:  $124.99
/ea
Cleveland Port Tool, 6.375" L, 0.750" dia., Bright C46448
Cleveland

Port Tool, 6.375" L, 0.750" dia., Bright

Zoro # G4837189
Mfr # C46448
product price:  $254.99
/ea
Cleveland Counterbore, 8.813" L, 1.000" dia., Bright C91735
Cleveland

Counterbore, 8.813" L, 1.000" dia., Bright

Zoro # G4803981
Mfr # C91735
product price:  $294.99
/ea
Cleveland Counterbore, 8.250" L, 0.750" dia., Bright C91834
Cleveland

Counterbore, 8.250" L, 0.750" dia., Bright

Zoro # G4816399
Mfr # C91834
product price:  $264.99
/ea
Cleveland Pilot for Counterbores, 3/32 in, 3/32 in C46545
Cleveland

Pilot for Counterbores, 3/32 in, 3/32 in

Zoro # G4837152
Mfr # C46545
product price:  $28.85
/ea
Cleveland Port Tool, 2.813" L, 0.250" dia., Bright C46893
Cleveland

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

Zoro # G4845668
Mfr # C46893
product price:  $99.89
/ea
Cleveland Counterbore, 6.500" L, 0.500" dia., Bright C91713
Cleveland

Counterbore, 6.500" L, 0.500" dia., Bright

Zoro # G4806842
Mfr # C91713
product price:  $144.99
/ea
Cleveland Port Tool, 4.313" L, 0.500" dia., Bright C46432
Cleveland

Port Tool, 4.313" L, 0.500" dia., Bright

Zoro # G4831519
Mfr # C46432
product price:  $145.99
/ea
Cleveland Pilot for Counterbores, 5/32 in, 5/32 in C46539
Cleveland

Pilot for Counterbores, 5/32 in, 5/32 in

Zoro # G4766489
Mfr # C46539
product price:  $25.89
/ea
Cleveland Counterbore, 7.250" L, 0.500" dia., Bright C91722
Cleveland

Counterbore, 7.250" L, 0.500" dia., Bright

Zoro # G4781100
Mfr # C91722
product price:  $169.99
/ea
Cleveland Port Tool, 2.813" L, 0.250" dia., Bright C46908
Cleveland

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

Zoro # G4836148
Mfr # C46908
product price:  $159.99
/ea
Cleveland Counterbore, 7.250" L, 0.500" dia., Bright C91721
Cleveland

Counterbore, 7.250" L, 0.500" dia., Bright

Zoro # G4767539
Mfr # C91721
product price:  $169.99
/ea
Cleveland Port Tool, 2.813" L, 0.250" dia., Bright C46910
Cleveland

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

Zoro # G4873543
Mfr # C46910
product price:  $190.99
/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
Cleveland Counterbore, 6.000" L, 0.438" dia., Bright C91711
Cleveland

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

Zoro # G4760992
Mfr # C91711
product price:  $159.99
/ea
Keo Counterbore, 1/32 Clearance, Size No 10, Co 902-000-015
Keo

Counterbore, 1/32 Clearance, Size No 10, Co

Zoro # G2458337
Mfr # 902-000-015
product price:  $66.69
/ea
Cleveland Counterbore, 7.000" L, 0.500" dia., Bright C91719
Cleveland

Counterbore, 7.000" L, 0.500" dia., Bright

Zoro # G4814308
Mfr # C91719
product price:  $200.99
/ea
Cleveland Port Tool, 2.813" L, 0.250" dia., Bright C46902
Cleveland

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

Zoro # G4832368
Mfr # C46902
product price:  $145.99
/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
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:  $71.09
/ea
Cleveland Port Tool, 5.375" L, 0.500" dia., Bright C46439
Cleveland

Port Tool, 5.375" L, 0.500" dia., Bright

Zoro # G4852281
Mfr # C46439
product price:  $206.99
/ea
Cleveland Counterbore, 3.000" L, 0.250" dia., Bright C91697
Cleveland

Counterbore, 3.000" L, 0.250" dia., Bright

Zoro # G4765463
Mfr # C91697
product price:  $130.99
/ea
Keo Counterbore, Close Fit, Size 3/8, Cobalt 902-000-022
Keo

Counterbore, Close Fit, Size 3/8, Cobalt

Zoro # G2453586
Mfr # 902-000-022
product price:  $87.49
/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:  $33.19
/ea
Cleveland Port Tool, 2.813" L, 0.250" dia., Bright C46896
Cleveland

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

Zoro # G4837843
Mfr # C46896
product price:  $125.99
/ea
Cleveland Counterbore, 6.000" L, 0.438" dia., Bright C92707
Cleveland

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

Zoro # G4791409
Mfr # C92707
product price:  $152.99
/ea
Cleveland Counterbore, 5.750" L, 0.375" dia., Bright C92705
Cleveland

Counterbore, 5.750" L, 0.375" dia., Bright

Zoro # G4869547
Mfr # C92705
product price:  $138.99
/ea
Keo Counterbore, 1/64 Clearance, Size 3/8, Co 902-000-023
Keo

Counterbore, 1/64 Clearance, Size 3/8, Co

Zoro # G1121951
Mfr # 902-000-023
product price:  $96.79
/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
Cleveland Counterbore, 3.500" L, 0.313" dia., Bright C91700
Cleveland

Counterbore, 3.500" L, 0.313" dia., Bright

Zoro # G4832760
Mfr # C91700
product price:  $139.99
/ea
Keo Counterbore, Close Fit, Size 1/2, Cobalt 902-000-028
Keo

Counterbore, Close Fit, Size 1/2, Cobalt

Zoro # G0746645
Mfr # 902-000-028
product price:  $98.29
/ea
Cleveland Counterbore, 2.234" L, 0.188" dia., Bright C46316
Cleveland

Counterbore, 2.234" L, 0.188" dia., Bright

Zoro # G4812862
Mfr # C46316
product price:  $71.71
/ea
Cleveland Counterbore, 7.250" L, 0.500" dia., Bright C91723
Cleveland

Counterbore, 7.250" L, 0.500" dia., Bright

Zoro # G4756083
Mfr # C91723
product price:  $196.99
/ea
Counterbores (929 items) - Page 6
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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.

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5/16 cobalt50 chain link#50 master link5/8 counterbore1/4 counterbore

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