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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 10

Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.0469" (3/64) 25447-C3
Harvey Tool

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

Zoro # G7255887
Mfr # 25447-C3
product price: 
$71.89
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.2500" (1/4) 25516
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.2500" (1/4)

Zoro # G7242998
Mfr # 25516
product price: 
$99.99
/ea
Harvey Tool Counterbores - Flat Bottom, 0.2344" (15/64) 23415-C3
Harvey Tool

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

Zoro # G7150957
Mfr # 23415-C3
product price: 
$78.59
/ea
Harvey Tool Counterbores - Flat Bottom 23320-C3
Harvey Tool

Counterbores - Flat Bottom

Zoro # G601020039
Mfr # 23320-C3
product price: 
$59.59
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.1094" (7/64) 25507-C3
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.1094" (7/64)

Zoro # G7247767
Mfr # 25507-C3
product price: 
$71.19
/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
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, Decimal Inch, 6 in 902-000-306
Keo

Counterbore, Decimal Inch, 6 in

Zoro # G421727699
Mfr # 902-000-306
product price: 
$146.99
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.1094" (7/64) 25507
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.1094" (7/64)

Zoro # G7245204
Mfr # 25507
product price: 
$61.69
/ea
Keo Counterbore, Metric, 80 mm 902-000-240
Keo

Counterbore, Metric, 80 mm

Zoro # G421726678
Mfr # 902-000-240
product price: 
$75.39
/ea
Keo Counterbore, Decimal Inch, 7 in 902-000-299
Keo

Counterbore, Decimal Inch, 7 in

Zoro # G921726024
Mfr # 902-000-299
product price: 
$306.99
/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, 0.5625" (9/16), Number of Flutes: 4 23436
Harvey Tool

Counterbores - Flat Bottom, 0.5625" (9/16), Number of Flutes: 4

Zoro # G7155069
Mfr # 23436
product price: 
$224.99
/ea
Harvey Tool Counterbores - Flat Bottom, 0.2500" (1/4) 23416-C6
Harvey Tool

Counterbores - Flat Bottom, 0.2500" (1/4)

Zoro # G7149356
Mfr # 23416-C6
product price: 
$81.89
/ea
Harvey Tool 1/2 in. Cutter dia. x 1 in. 1 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, TiB2 Coated 23432-C8
Harvey Tool

1/2 in. Cutter dia. x 1 in. 1 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, TiB2 Coated

Zoro # G811324668
Mfr # 23432-C8
product price: 
$176.99
/ea
Harvey Tool Counterbores - Flat Bottom, 0.1250" (1/8) 23408
Harvey Tool

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

Zoro # G7153845
Mfr # 23408
product price: 
$51.29
/ea
Harvey Tool Counterbores - Flat Bottom, 0.2500" (1/4), Material - Machining: Carbide 23416
Harvey Tool

Counterbores - Flat Bottom, 0.2500" (1/4), Material - Machining: Carbide

Zoro # G7153924
Mfr # 23416
product price: 
$67.29
/ea
Keo Counterbore, Decimal Inch, 6 in 902-000-305
Keo

Counterbore, Decimal Inch, 6 in

Zoro # G121727098
Mfr # 902-000-305
product price: 
$146.99
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.0312" (1/32) 25431-C3
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.0312" (1/32)

Zoro # G7243269
Mfr # 25431-C3
product price: 
$73.19
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.2187" (7/32), Number of Flutes: 4 25514
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.2187" (7/32), Number of Flutes: 4

Zoro # G7261444
Mfr # 25514
product price: 
$105.99
/ea
Keo Counterbore, Decimal Inch, 7 in 902-000-183
Keo

Counterbore, Decimal Inch, 7 in

Zoro # G521725250
Mfr # 902-000-183
product price: 
$518.99
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.1875" (3/16), Number of Flutes: 4 25512
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.1875" (3/16), Number of Flutes: 4

Zoro # G7260945
Mfr # 25512
product price: 
$81.69
/ea
Keo Counterbore, Decimal Inch, 7 in 902-000-171
Keo

Counterbore, Decimal Inch, 7 in

Zoro # G421724704
Mfr # 902-000-171
product price: 
$258.99
/ea
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 1/2  in. Cutter dia. x 1  in. 1 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes 731632-C3
Harvey Tool

1/2 in. Cutter dia. x 1 in. 1 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes

Zoro # G811325351
Mfr # 731632-C3
product price: 
$186.99
/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
Counterbores (927 items) - Page 10
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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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