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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 (927 items) - Page 20

Harvey Tool Counterbores - Flat Bottom, 0.1250" (1/8) 23408-C3
Harvey Tool

Counterbores - Flat Bottom, 0.1250" (1/8)

Zoro # G7149310
Mfr # 23408-C3
product price: 
$59.49
/ea
Keo Counterbore, Decimal Inch, 3 in 902-000-081
Keo

Counterbore, Decimal Inch, 3 in

Zoro # G321727546
Mfr # 902-000-081
product price: 
$57.59
/ea
Keo Counterbore, Decimal Inch, 3 in 902-000-099
Keo

Counterbore, Decimal Inch, 3 in

Zoro # G621726720
Mfr # 902-000-099
product price: 
$63.69
/ea
Harvey Tool Counterbores - Flat Bottom, 0.0900", Finish - Machining: AlTiN 23390-C3
Harvey Tool

Counterbores - Flat Bottom, 0.0900", Finish - Machining: AlTiN

Zoro # G7154439
Mfr # 23390-C3
product price: 
$57.79
/ea
Keo Counterbore, 1/64 Clearance, Size No 10, Co 902-000-014
Keo

Counterbore, 1/64 Clearance, Size No 10, Co

Zoro # G1024082
Mfr # 902-000-014
product price: 
$75.19
/ea
Harvey Tool Counterbores - Flat Bottom, 0.2344" (15/64) 23415
Harvey Tool

Counterbores - Flat Bottom, 0.2344" (15/64)

Zoro # G7154019
Mfr # 23415
product price: 
$67.29
/ea
Harvey Tool Counterbores - Flat Bottom, 0.0625" (1/16) 23362-C6
Harvey Tool

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

Zoro # G7154527
Mfr # 23362-C6
product price: 
$61.39
/ea
Garant Counterbore for Through Holes, 180 Deg, Uncoated, 15X8.4 mm 156020 15X8,4
Garant

Counterbore for Through Holes, 180 Deg, Uncoated, 15X8.4 mm

Zoro # G914389663
Mfr # 156020 15X8,4
product price: 
$36.99
/ea
Harvey Tool Counterbores - Flat Bottom, 0.4062" (13/32) 23426
Harvey Tool

Counterbores - Flat Bottom, 0.4062" (13/32)

Zoro # G7156730
Mfr # 23426
product price: 
$117.99
/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: 
$62.69
/ea
Keo Counterbore, Decimal Inch, 5 in 902-000-308
Keo

Counterbore, Decimal Inch, 5 in

Zoro # G721725975
Mfr # 902-000-308
product price: 
$127.99
/ea
Keo Counterbore, Metric, 71 mm 902-000-204
Keo

Counterbore, Metric, 71 mm

Zoro # G821727756
Mfr # 902-000-204
product price: 
$52.19
/ea
Harvey Tool Counterbores - Flat Bottom, 0.2969" (19/64) 23419-C3
Harvey Tool

Counterbores - Flat Bottom, 0.2969" (19/64)

Zoro # G7151395
Mfr # 23419-C3
product price: 
$97.15
/ea
Harvey Tool Counterbores - Flat Bottom, 0.0787" 2332M-C3
Harvey Tool

Counterbores - Flat Bottom, 0.0787"

Zoro # G7257856
Mfr # 2332M-C3
product price: 
$59.99
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.1968" 2555M-C3
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.1968"

Zoro # G7164878
Mfr # 2555M-C3
product price: 
$121.99
/ea
Harvey Tool Counterbores - Flat Bottom, 0.2812" (9/32) 23418-C3
Harvey Tool

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

Zoro # G7154116
Mfr # 23418-C3
product price: 
$97.15
/ea
Keo Counterbore, Metric, 80 mm 902-000-225
Keo

Counterbore, Metric, 80 mm

Zoro # G321727430
Mfr # 902-000-225
product price: 
$72.89
/ea
Harvey Tool Counterbores - Flat Bottom, 0.7500" (3/4) 23448
Harvey Tool

Counterbores - Flat Bottom, 0.7500" (3/4)

Zoro # G7245466
Mfr # 23448
product price: 
$347.99
/ea
Keo Counterbore, Decimal Inch, 3 in 902-000-072
Keo

Counterbore, Decimal Inch, 3 in

Zoro # G121727616
Mfr # 902-000-072
product price: 
$53.49
/ea
Keo Counterbore, Metric, 71 mm 902-000-207
Keo

Counterbore, Metric, 71 mm

Zoro # G821727039
Mfr # 902-000-207
product price: 
$59.29
/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: 
$25.25
/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: 
$162.99
/ea
Harvey Tool 0.2420'' Cutter DIA x 0.8750'', 7/8 Flute Length - 4 FL - AlTiN Coated 23641-C3
Harvey Tool

0.2420'' Cutter DIA x 0.8750'', 7/8 Flute Length - 4 FL - AlTiN Coated

Zoro # G413082188
Mfr # 23641-C3
product price: 
$76.69
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.1875" (3/16) 25512-C3
Harvey Tool

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

Zoro # G7260190
Mfr # 25512-C3
product price: 
$85.15
/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: 
$152.99
/ea
Keo Counterbore, Decimal Inch, 3 in 902-000-330
Keo

Counterbore, Decimal Inch, 3 in

Zoro # G621725716
Mfr # 902-000-330
product price: 
$61.49
/ea
Keo Counterbore, Decimal Inch, 6 in 902-000-304
Keo

Counterbore, Decimal Inch, 6 in

Zoro # G821727848
Mfr # 902-000-304
product price: 
$146.99
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.0625" (1/16) 25462-C3
Harvey Tool

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

Zoro # G7256964
Mfr # 25462-C3
product price: 
$71.19
/ea
Keo Counterbore, Decimal Inch, 7 in 902-000-295
Keo

Counterbore, Decimal Inch, 7 in

Zoro # G621726775
Mfr # 902-000-295
product price: 
$585.99
/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
Harvey Tool Counterbores - Flat Bottom, 0.3125" (5/16), Finish - Machining: Uncoated 23420
Harvey Tool

Counterbores - Flat Bottom, 0.3125" (5/16), Finish - Machining: Uncoated

Zoro # G7149347
Mfr # 23420
product price: 
$82.89
/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: 
$97.89
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.1575", Overall Length: 3" 2554M
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.1575", Overall Length: 3"

Zoro # G7164808
Mfr # 2554M
product price: 
$73.19
/ea
Keo Counterbore, Decimal Inch, 6 in 902-000-302
Keo

Counterbore, Decimal Inch, 6 in

Zoro # G321727744
Mfr # 902-000-302
product price: 
$202.99
/ea
Harvey Tool Counterbores - Flat Bottom, 0.1181" 2343M-C6
Harvey Tool

Counterbores - Flat Bottom, 0.1181"

Zoro # G7161387
Mfr # 2343M-C6
product price: 
$61.89
/ea
Harvey Tool Counterbores - Flat Bottom, 0.3437" (11/32), Flute Length: 1" 23422
Harvey Tool

Counterbores - Flat Bottom, 0.3437" (11/32), Flute Length: 1"

Zoro # G7150984
Mfr # 23422
product price: 
$99.39
/ea
Counterbores (927 items) - Page 20
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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

Hole SawsJobber Length Drill BitsReduced Shank Drill BitsCountersinksTap Sets
Square End MillsAuger Drill BitsDrill Bit SetsCenter DrillsHex Dies
cleveland counterborecounter bore pilot5/8 counterborepilot counterboreinterchangeable pilot counterbore
high speed steelmetric shcs1-1/4 in counterbore6-piece damask jacquard/solidcounter bore set

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