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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 4

Cleveland Pilot for Counterbores, 3/16 in, 3/16 in C46540
Cleveland

Pilot for Counterbores, 3/16 in, 3/16 in

Zoro # G4858712
Mfr # C46540
product price:  $24.15
/ea
Super Tool Reduced Shank Counterbore, 13/32" D 52213
Super Tool

Reduced Shank Counterbore, 13/32" D

Zoro # G0331322
Mfr # 52213
product price:  $77.19
/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 Reduced Shank Counterbore, 3/8" D 52212
Super Tool

Reduced Shank Counterbore, 3/8" D

Zoro # G0331410
Mfr # 52212
product price:  $75.29
/ea
Hhip 5/8 X 21/32 High Speed Steel 3 Flute Solid  Pilot Counterbore 2007-0033
Hhip

5/8 X 21/32 High Speed Steel 3 Flute Solid Pilot Counterbore

Zoro # G2468096
Mfr # 2007-0033
product price:  $24.19
/ea
Hhip M5 X 5.5mm HSS 3 Flute Straight Shank Solid Pilot Counterbore 2007-0057
Hhip

M5 X 5.5mm HSS 3 Flute Straight Shank Solid Pilot Counterbore

Zoro # G2468288
Mfr # 2007-0057
product price:  $15.19
/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 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:  $56.59
/ea
Harvey Tool 0.4220'', 27/64 Cutter DIA x 1.0000'', 1 Flute Length - 4 FL - AlTiN Coated 23427-C3
Harvey Tool

0.4220'', 27/64 Cutter DIA x 1.0000'', 1 Flute Length - 4 FL - AlTiN Coated

Zoro # G413081587
Mfr # 23427-C3
product price:  $106.99
/ea
Harvey Tool Counterbores - Flat Bottom 23340
Harvey Tool

Counterbores - Flat Bottom

Zoro # G401019899
Mfr # 23340
product price:  $41.39
/ea
Harvey Tool Counterbores - Flat Bottom, 0.5000" (1/2) 23432
Harvey Tool

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

Zoro # G7160504
Mfr # 23432
product price:  $119.99
/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
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
Cleveland Counterbore, 1.812" L, 0.250" dia., Bright C46573
Cleveland

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

Zoro # G4776830
Mfr # C46573
product price:  $33.79
/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, 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
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:  $51.15
/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:  $188.99
/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
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, 1.750" L, 0.250" dia., Bright C46557
Cleveland

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

Zoro # G4803187
Mfr # C46557
product price:  $31.99
/ea
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
Harvey Tool Counterbores - Flat Bottom 23340-C3
Harvey Tool

Counterbores - Flat Bottom

Zoro # G701019278
Mfr # 23340-C3
product price:  $48.35
/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:  $51.25
/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
Keo Counterbore, Close Fit, Size 5/16, Cobalt 902-000-019
Keo

Counterbore, Close Fit, Size 5/16, Cobalt

Zoro # G2520061
Mfr # 902-000-019
product price:  $65.39
/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
Keo Counterbore Set, Close Fit, 7 PC, No 6-1/2 In 902-000-040
Keo

Counterbore Set, Close Fit, 7 PC, No 6-1/2 In

Zoro # G2382423
Mfr # 902-000-040
product price:  $524.99
/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
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 1/2, Co 902-000-029
Keo

Counterbore, 1/64 Clearance, Size 1/2, Co

Zoro # G2109843
Mfr # 902-000-029
product price:  $104.99
/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 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, 4.063" L, 0.312" dia., Bright C46427
Cleveland

Port Tool, 4.063" L, 0.312" dia., Bright

Zoro # G4854549
Mfr # C46427
product price:  $133.99
/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
Counterbores (929 items) - Page 4
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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

Port ToolsJobber Length Drill BitsCountersinksHole SawsSpiral Point 2-Flute Taps
Square End MillsHammer Drill BitsExtra Long Drill BitsRound DiesSpiral Flute 3-Flute Taps
cobalt 1/2cleveland counterbore6-piece damask jacquard/solid1-1/4 in counterbore5/16 counterbore
5/16 cobalt50 chain link#50 master link5/8 counterbore1/4 counterbore

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