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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
  8. /
  9. Counterbores

Counterbores (929 items) - Page 5

Harvey Tool Counterbores - Flat Bottom, 0.1181", Number of Flutes: 4 2343M-C3
Harvey Tool

Counterbores - Flat Bottom, 0.1181", Number of Flutes: 4

Zoro # G7164765
Mfr # 2343M-C3
product price:  $60.99
/ea
Harvey Tool Counterbores - Flat Bottom, 0.0625" (1/16) 23362-C3
Harvey Tool

Counterbores - Flat Bottom, 0.0625" (1/16)

Zoro # G7253050
Mfr # 23362-C3
product price:  $61.15
/ea
Cleveland Counterbore, 1.750" L, 0.250" dia., Bright C46557
Cleveland

Counterbore, 1.750" L, 0.250" dia., Bright

Zoro # G4803187
Mfr # C46557
product price:  $31.99
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.0312" (1/32), Shank Dia.: 1/8" 25431
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.0312" (1/32), Shank Dia.: 1/8"

Zoro # G7257244
Mfr # 25431
product price:  $64.19
/ea
Garant Counterbore for Through Holes, 180 Deg, Uncoated, 20X13.5 mm 156020 20X13,5
Garant

Counterbore for Through Holes, 180 Deg, Uncoated, 20X13.5 mm

Zoro # G714389573
Mfr # 156020 20X13,5
product price:  $47.19
/ea
Cleveland Counterbore, 1.375" L, 0.156" dia., Bright C46584
Cleveland

Counterbore, 1.375" L, 0.156" dia., Bright

Zoro # G4757151
Mfr # C46584
product price:  $29.99
/ea
Garant Counterbore for Through Holes, 180 Deg, Uncoated, 8X4.3 mm 156020 8X4,3
Garant

Counterbore for Through Holes, 180 Deg, Uncoated, 8X4.3 mm

Zoro # G014389464
Mfr # 156020 8X4,3
product price:  $19.65
/ea
Cleveland Counterbore Set, 9 Pieces, Bright C91750
Cleveland

Counterbore Set, 9 Pieces, Bright

Zoro # G4823450
Mfr # C91750
product price:  $1,099.99
/ea
Cleveland Counterbore, 2.687" L, 0.375" dia., Bright C46674
Cleveland

Counterbore, 2.687" L, 0.375" dia., Bright

Zoro # G4802679
Mfr # C46674
product price:  $68.55
/ea
Cleveland Counterbore, 2.000" L, 0.250" dia., Bright C46621
Cleveland

Counterbore, 2.000" L, 0.250" dia., Bright

Zoro # G4786770
Mfr # C46621
product price:  $48.39
/ea
Cleveland Counterbore, 1.625" L, 0.188" dia., Bright C46605
Cleveland

Counterbore, 1.625" L, 0.188" dia., Bright

Zoro # G4782193
Mfr # C46605
product price:  $34.19
/ea
Drill America 1/2" HSS Solid Counterbore DEWCBRSOL1/2
Drill America

1/2" HSS Solid Counterbore

Zoro # G1742154
Mfr # DEWCBRSOL1/2
product price:  $24.89
/ea
Garant Counterbore for Tapping Drill Holes, 180 Deg, Uncoated, 6.5X2.9 mm 156220 6,5X2,9
Garant

Counterbore for Tapping Drill Holes, 180 Deg, Uncoated, 6.5X2.9 mm

Zoro # G814376060
Mfr # 156220 6,5X2,9
product price:  $25.99
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.5000" (1/2) 25532-C3
Harvey Tool

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

Zoro # G7167048
Mfr # 25532-C3
product price:  $225.99
/ea
Cleveland Counterbore, 1.812" L, 0.250" dia., Bright C46586
Cleveland

Counterbore, 1.812" L, 0.250" dia., Bright

Zoro # G4775710
Mfr # C46586
product price:  $33.79
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.0937" (3/32) 25493
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.0937" (3/32)

Zoro # G7254024
Mfr # 25493
product price:  $60.35
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.1181" 2553M-C3
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.1181"

Zoro # G7249620
Mfr # 2553M-C3
product price:  $67.79
/ea
Cleveland Counterbore, 2.000" L, 0.250" dia., Bright C46645
Cleveland

Counterbore, 2.000" L, 0.250" dia., Bright

Zoro # G4877603
Mfr # C46645
product price:  $51.59
/ea
Garant Counterbore for Through Holes, 180 Deg, Uncoated, 6.5X3.9 mm 156020 6,5X3,9
Garant

Counterbore for Through Holes, 180 Deg, Uncoated, 6.5X3.9 mm

Zoro # G614389512
Mfr # 156020 6,5X3,9
product price:  $24.55
/ea
Keo Counterbore, Close Fit, Size No 8, Cobalt 902-000-010
Keo

Counterbore, Close Fit, Size No 8, Cobalt

Zoro # G2292123
Mfr # 902-000-010
product price:  $59.29
/ea
Cleveland Counterbore, 1.500" L, 0.125" dia., Bright C46583
Cleveland

Counterbore, 1.500" L, 0.125" dia., Bright

Zoro # G4859309
Mfr # C46583
product price:  $29.99
/ea
Harvey Tool 0.1968 in. Cutter dia. x .75 in. 3/4 Carbide Flat Bottom Counterbore, 4 Flutes, TiB2 Coated 2345M-C8
Harvey Tool

0.1968 in. Cutter dia. x .75 in. 3/4 Carbide Flat Bottom Counterbore, 4 Flutes, TiB2 Coated

Zoro # G311324779
Mfr # 2345M-C8
product price:  $74.79
/ea
Keo Counterbore, 1/64 Clearance, Size 1/4, Co 902-000-017
Keo

Counterbore, 1/64 Clearance, Size 1/4, Co

Zoro # G1279327
Mfr # 902-000-017
product price:  $71.15
/ea
Keo No 6 through 1/2" +1/32 Oversize Kounterbore Set 902-000-042
Keo

No 6 through 1/2" +1/32 Oversize Kounterbore Set

Zoro # G2600656
Mfr # 902-000-042
product price:  $552.99
/ea
Cleveland Pilot for Counterbores, 3/32 in, 3/32 in C46523
Cleveland

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

Zoro # G4800210
Mfr # C46523
product price:  $31.69
/ea
Cleveland Port Tool, 2.813" L, 0.250" dia., Bright C46898
Cleveland

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

Zoro # G4821113
Mfr # C46898
product price:  $135.99
/ea
Cleveland Counterbore, 7.000" L, 0.500" dia., Bright C91833
Cleveland

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

Zoro # G4876468
Mfr # C91833
product price:  $248.99
/ea
Drill America 1/2" 17/32" Continuous Pilot Capscrew Counterbore DEWCSCBR1/2
Drill America

1/2" 17/32" Continuous Pilot Capscrew Counterbore

Zoro # G1739406
Mfr # DEWCSCBR1/2
product price:  $45.45
/ea
Cleveland Port Tool, 6.375" L, 1.000" dia., Bright C46449
Cleveland

Port Tool, 6.375" L, 1.000" dia., Bright

Zoro # G4815242
Mfr # C46449
product price:  $264.99
/ea
Cleveland Counterbore, 8.813" L, 1.000" dia., Bright C91749
Cleveland

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

Zoro # G4817132
Mfr # C91749
product price:  $424.99
/ea
Cleveland Counterbore, 7.000" L, 0.500" dia., Bright C91717
Cleveland

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

Zoro # G4756217
Mfr # C91717
product price:  $182.99
/ea
Drill America 3/8" 13/32" Continuous Pilot Capscrew Counterbore DEWCSCBR3/8
Drill America

3/8" 13/32" Continuous Pilot Capscrew Counterbore

Zoro # G1741418
Mfr # DEWCSCBR3/8
product price:  $33.85
/ea
Cleveland Port Tool, 5.125" L, 0.500" dia., Bright C46436
Cleveland

Port Tool, 5.125" L, 0.500" dia., Bright

Zoro # G4880780
Mfr # C46436
product price:  $159.99
/ea
Cleveland Counterbore, 8.250" L, 0.750" dia., Bright C91726
Cleveland

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

Zoro # G4836653
Mfr # C91726
product price:  $209.99
/ea
Cleveland Counterbore, 8.813" L, 1.000" dia., Bright C91835
Cleveland

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

Zoro # G4844907
Mfr # C91835
product price:  $339.99
/ea
Garant Counterbore with Interchangeable Pilot Pins, 30 mm 156520 30
Garant

Counterbore with Interchangeable Pilot Pins, 30 mm

Zoro # G114389821
Mfr # 156520 30
product price:  $171.99
/ea
Counterbores (929 items) - Page 5
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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.

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
5/8 counterborehigh speed steelcounter borecleveland counterbore1-1/4 in counterbore
counter bore pilotpilot counterborecounter bore set6-piece damask jacquard/solidmetric shcs

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