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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

Counterbores (927 items) - Page 11

Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.3937" 2550M
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.3937"

Zoro # G7157537
Mfr # 2550M
product price: 
$188.99
/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
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, 6 in 902-000-303
Keo

Counterbore, Decimal Inch, 6 in

Zoro # G721726910
Mfr # 902-000-303
product price: 
$202.99
/ea
Harvey Tool 0.2900'' Cutter DIA x 0.8750'', 7/8 Flute Length - 4 FL 23689
Harvey Tool

0.2900'' Cutter DIA x 0.8750'', 7/8 Flute Length - 4 FL

Zoro # G913082206
Mfr # 23689
product price: 
$80.29
/ea
Keo Counterbore, Decimal Inch, 3 in 902-000-326
Keo

Counterbore, Decimal Inch, 3 in

Zoro # G621727291
Mfr # 902-000-326
product price: 
$65.79
/ea
Harvey Tool Counterbores - Flat Bottom, 0.0469" (3/64) 23347-C3
Harvey Tool

Counterbores - Flat Bottom, 0.0469" (3/64)

Zoro # G7151359
Mfr # 23347-C3
product price: 
$60.15
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.3150" 2558M-C3
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.3150"

Zoro # G7247006
Mfr # 2558M-C3
product price: 
$171.99
/ea
Harvey Tool Counterbores - Flat Bottom, 0.4724" 23476-C3
Harvey Tool

Counterbores - Flat Bottom, 0.4724"

Zoro # G7253988
Mfr # 23476-C3
product price: 
$174.99
/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: 
$99.99
/ea
Keo Counterbore, Decimal Inch, 6 in 902-000-156
Keo

Counterbore, Decimal Inch, 6 in

Zoro # G321726112
Mfr # 902-000-156
product price: 
$125.99
/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: 
$71.19
/ea
Keo Counterbore, Metric, 71 mm 902-000-210
Keo

Counterbore, Metric, 71 mm

Zoro # G821726780
Mfr # 902-000-210
product price: 
$59.29
/ea
Keo Counterbore, Decimal Inch, 7 in 902-000-300
Keo

Counterbore, Decimal Inch, 7 in

Zoro # G121727166
Mfr # 902-000-300
product price: 
$306.99
/ea
Keo Counterbore, Decimal Inch, 5 in 902-000-135
Keo

Counterbore, Decimal Inch, 5 in

Zoro # G121726527
Mfr # 902-000-135
product price: 
$93.39
/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: 
$199.99
/ea
Keo Counterbore, Metric, 71 mm 902-000-222
Keo

Counterbore, Metric, 71 mm

Zoro # G321724835
Mfr # 902-000-222
product price: 
$64.39
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.3437" (11/32) 25522
Harvey Tool

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

Zoro # G7263255
Mfr # 25522
product price: 
$144.99
/ea
Keo Counterbore, Metric, 100 mm 902-000-246
Keo

Counterbore, Metric, 100 mm

Zoro # G221727196
Mfr # 902-000-246
product price: 
$80.19
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.4375" (7/16) 25528-C3
Harvey Tool

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

Zoro # G7265504
Mfr # 25528-C3
product price: 
$192.99
/ea
Harvey Tool 0.1750'' Cutter DIA x 0.6250'', 5/8 Flute Length - 4 FL 23574
Harvey Tool

0.1750'' Cutter DIA x 0.6250'', 5/8 Flute Length - 4 FL

Zoro # G413081570
Mfr # 23574
product price: 
$48.49
/ea
Harvey Tool Counterbores - Flat Bottom, 0.2500" (1/4), Flute Length: 7/8" 23416-C3
Harvey Tool

Counterbores - Flat Bottom, 0.2500" (1/4), Flute Length: 7/8"

Zoro # G7151526
Mfr # 23416-C3
product price: 
$75.25
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.2344" (15/64) 25515-C3
Harvey Tool

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

Zoro # G7262774
Mfr # 25515-C3
product price: 
$114.99
/ea
Keo Counterbore, Decimal Inch, 6 in 902-000-153
Keo

Counterbore, Decimal Inch, 6 in

Zoro # G921726390
Mfr # 902-000-153
product price: 
$125.99
/ea
Keo Counterbore, Decimal Inch, 3 in 902-000-327
Keo

Counterbore, Decimal Inch, 3 in

Zoro # G321726648
Mfr # 902-000-327
product price: 
$65.79
/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: 
$31.29
/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
Keo Counterbore, Metric, 100 mm 902-000-255
Keo

Counterbore, Metric, 100 mm

Zoro # G521726073
Mfr # 902-000-255
product price: 
$98.89
/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, 7 in 902-000-297
Keo

Counterbore, Decimal Inch, 7 in

Zoro # G621725389
Mfr # 902-000-297
product price: 
$450.99
/ea
Keo Counterbore, Decimal Inch, 3 in 902-000-324
Keo

Counterbore, Decimal Inch, 3 in

Zoro # G721726408
Mfr # 902-000-324
product price: 
$71.15
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.1406" (9/64) 25509
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.1406" (9/64)

Zoro # G7242964
Mfr # 25509
product price: 
$64.15
/ea
Harvey Tool Counterbores - Flat Bottom, 0.1968", Flute Length: 3/4" 2345M
Harvey Tool

Counterbores - Flat Bottom, 0.1968", Flute Length: 3/4"

Zoro # G7242937
Mfr # 2345M
product price: 
$64.29
/ea
Keo Counterbore, Decimal Inch, 3 in 902-000-331
Keo

Counterbore, Decimal Inch, 3 in

Zoro # G121725711
Mfr # 902-000-331
product price: 
$60.19
/ea
Harvey Tool Counterbores - Flat Bottom, 0.2362" 2346M
Harvey Tool

Counterbores - Flat Bottom, 0.2362"

Zoro # G7252518
Mfr # 2346M
product price: 
$71.29
/ea
Harvey Tool Counterbores - Flat Bottom, 0.2812" (9/32), Number of Flutes: 4 23418
Harvey Tool

Counterbores - Flat Bottom, 0.2812" (9/32), Number of Flutes: 4

Zoro # G7152460
Mfr # 23418
product price: 
$82.19
/ea
Counterbores (927 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

Hole SawsJobber Length Drill BitsCountersinksReduced Shank Drill BitsDrill Bit Sets
Hammer Drill BitsCenter DrillsTap SetsAuger Drill BitsTap Wrenches
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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