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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 11

Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.4375" (7/16) 25528
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.4375" (7/16)

Zoro # G7262756
Mfr # 25528
product price:  $134.99
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.3437" (11/32) 25522-C3
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.3437" (11/32)

Zoro # G7164780
Mfr # 25522-C3
product price:  $128.99
/ea
Cleveland Counterbore, 1.625" L, 0.188" dia., Bright C46579
Cleveland

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

Zoro # G4758019
Mfr # C46579
product price:  $29.99
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.0787" 2542M-C3
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.0787"

Zoro # G7253960
Mfr # 2542M-C3
product price:  $58.35
/ea
Drill America 1" 1-1/16" Continuous Pilot Capscrew Counterbore DEWCSCBR1INCH
Drill America

1" 1-1/16" Continuous Pilot Capscrew Counterbore

Zoro # G1746424
Mfr # DEWCSCBR1INCH
product price:  $141.99
/ea
Cleveland Counterbore, 1.625" L, 0.188" dia., Bright C46612
Cleveland

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

Zoro # G4776620
Mfr # C46612
product price:  $34.19
/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 - Long Reach, 0.2031" (13/64) 25513
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.2031" (13/64)

Zoro # G7242946
Mfr # 25513
product price:  $83.65
/ea
Cleveland Counterbore, 2.281" L, 0.313" dia., Bright C46658
Cleveland

Counterbore, 2.281" L, 0.313" dia., Bright

Zoro # G4774231
Mfr # C46658
product price:  $60.49
/ea
Cleveland Counterbore, 2.500" L, 0.375" dia., Bright C46647
Cleveland

Counterbore, 2.500" L, 0.375" dia., Bright

Zoro # G4782430
Mfr # C46647
product price:  $51.59
/ea
Harvey Tool Counterbores - Flat Bottom 23409-C6
Harvey Tool

Counterbores - Flat Bottom

Zoro # G604195383
Mfr # 23409-C6
product price:  $45.35
/ea
Cleveland Counterbore, 2.062" L, 0.188" dia., Bright C46592
Cleveland

Counterbore, 2.062" L, 0.188" dia., Bright

Zoro # G4783937
Mfr # C46592
product price:  $34.19
/ea
Drill America No 6 .150 Continuous Pilot Capscrew Counterbore DEWCSCBR6
Drill America

No 6 .150 Continuous Pilot Capscrew Counterbore

Zoro # G1742845
Mfr # DEWCSCBR6
product price:  $25.35
/ea
Keo Counterbore, 1/64 Clearance, Size No 4, Co 902-000-002
Keo

Counterbore, 1/64 Clearance, Size No 4, Co

Zoro # G0903585
Mfr # 902-000-002
product price:  $51.89
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.3937" 2550M-C3
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.3937"

Zoro # G7247338
Mfr # 2550M-C3
product price:  $161.99
/ea
Harvey Tool Counterbores - Flat Bottom, 0.0787" 2332M-C3
Harvey Tool

Counterbores - Flat Bottom, 0.0787"

Zoro # G7257856
Mfr # 2332M-C3
product price:  $50.35
/ea
Harvey Tool Counterbores - Flat Bottom, 0.3594" (23/64), Material - Machining: Carbide 23423
Harvey Tool

Counterbores - Flat Bottom, 0.3594" (23/64), Material - Machining: Carbide

Zoro # G7155139
Mfr # 23423
product price:  $78.45
/ea
Harvey Tool Counterbores - Flat Bottom, 0.6875" (11/16) 23444-C3
Harvey Tool

Counterbores - Flat Bottom, 0.6875" (11/16)

Zoro # G7258714
Mfr # 23444-C3
product price:  $326.99
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.3750" (3/8), Number of Flutes: 4 25524
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.3750" (3/8), Number of Flutes: 4

Zoro # G7260297
Mfr # 25524
product price:  $114.99
/ea
Keo Counterbore, Close Fit, Size No 5, Cobalt 902-000-004
Keo

Counterbore, Close Fit, Size No 5, Cobalt

Zoro # G0806881
Mfr # 902-000-004
product price:  $54.49
/ea
Harvey Tool Counterbores - Flat Bottom, 0.0625" (1/16) 23362
Harvey Tool

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

Zoro # G7242858
Mfr # 23362
product price:  $40.99
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.2187" (7/32) 25514-C3
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.2187" (7/32)

Zoro # G7264296
Mfr # 25514-C3
product price:  $92.59
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.1250" (1/8), Neck Dia.: 0.1130" 25508
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.1250" (1/8), Neck Dia.: 0.1130"

Zoro # G7258294
Mfr # 25508
product price:  $49.79
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.1968" 2555M
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.1968"

Zoro # G7167696
Mfr # 2555M
product price:  $84.65
/ea
Harvey Tool 0.3320'' Cutter DIA x 1.0000'', 1 Flute Length - 4 FL 23731
Harvey Tool

0.3320'' Cutter DIA x 1.0000'', 1 Flute Length - 4 FL

Zoro # G113082129
Mfr # 23731
product price:  $74.59
/ea
Harvey Tool Counterbores - Flat Bottom, 0.1875" (3/16) 23412-C3
Harvey Tool

Counterbores - Flat Bottom, 0.1875" (3/16)

Zoro # G7259877
Mfr # 23412-C3
product price:  $46.69
/ea
Cleveland Counterbore, 1.875" L, 0.250" dia., Bright C46599
Cleveland

Counterbore, 1.875" L, 0.250" dia., Bright

Zoro # G4762121
Mfr # C46599
product price:  $37.79
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.2656" (17/64) 25517-C3
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.2656" (17/64)

Zoro # G7166436
Mfr # 25517-C3
product price:  $116.99
/ea
Cleveland Counterbore, 2.687" L, 0.375" dia., Bright C46679
Cleveland

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

Zoro # G4802922
Mfr # C46679
product price:  $65.19
/ea
Cleveland Counterbore, 1.500" L, 0.125" dia., Bright C46569
Cleveland

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

Zoro # G4756092
Mfr # C46569
product price:  $29.99
/ea
Garant Counterbore for Through Holes, 180 Deg, Uncoated, 11X6.4 mm 156020 11X6,4
Garant

Counterbore for Through Holes, 180 Deg, Uncoated, 11X6.4 mm

Zoro # G414389675
Mfr # 156020 11X6,4
product price:  $23.15
/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
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
Cleveland Counterbore, 1.437" L, 0.094" dia., Bright C46549
Cleveland

Counterbore, 1.437" L, 0.094" dia., Bright

Zoro # G4820002
Mfr # C46549
product price:  $28.79
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.0781" (5/64) 25478
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.0781" (5/64)

Zoro # G7256438
Mfr # 25478
product price:  $50.39
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.2812" (9/32) 25518-C3
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.2812" (9/32)

Zoro # G7161956
Mfr # 25518-C3
product price:  $118.99
/ea
Counterbores (929 items) - Page 11
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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
#50 master linkcleveland counterbore5/8 counterborecounter bore pilot5/16 counterbore
counter bore5/16 cobalt6-piece damask jacquard/solid1/4 counterbore50 chain link

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