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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 13

Keo Counterbore, Decimal Inch, 7 in 902-000-177
Keo

Counterbore, Decimal Inch, 7 in

Zoro # G121727029
Mfr # 902-000-177
product price:  $382.99
/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
Keo Counterbore, Decimal Inch, 4-1/2 in 902-000-120
Keo

Counterbore, Decimal Inch, 4-1/2 in

Zoro # G321726624
Mfr # 902-000-120
product price:  $73.39
/ea
Keo Counterbore, Decimal Inch, 3 in 902-000-084
Keo

Counterbore, Decimal Inch, 3 in

Zoro # G321727010
Mfr # 902-000-084
product price:  $59.39
/ea
Keo Counterbore, Decimal Inch, 3 in 902-000-329
Keo

Counterbore, Decimal Inch, 3 in

Zoro # G821726063
Mfr # 902-000-329
product price:  $63.39
/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, Decimal Inch, 6 in 902-000-162
Keo

Counterbore, Decimal Inch, 6 in

Zoro # G921726284
Mfr # 902-000-162
product price:  $177.99
/ea
Keo Counterbore, Decimal Inch, 6 in 902-000-301
Keo

Counterbore, Decimal Inch, 6 in

Zoro # G021726115
Mfr # 902-000-301
product price:  $202.99
/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, 0.4724" 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, 0.0781" (5/64) 25478
Harvey Tool

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

Zoro # G7256438
Mfr # 25478
product price:  $66.39
/ea
Keo Counterbore, Metric, 100 mm 902-000-261
Keo

Counterbore, Metric, 100 mm

Zoro # G121726640
Mfr # 902-000-261
product price:  $112.99
/ea
Keo Counterbore, Decimal Inch, 5 in 902-000-312
Keo

Counterbore, Decimal Inch, 5 in

Zoro # G021726719
Mfr # 902-000-312
product price:  $110.99
/ea
Harvey Tool Counterbores - Flat Bottom, 0.1575" 2344M-C3
Harvey Tool

Counterbores - Flat Bottom, 0.1575"

Zoro # G7242928
Mfr # 2344M-C3
product price:  $58.29
/ea
Keo Counterbore, Decimal Inch, 4-1/2 in 902-000-123
Keo

Counterbore, Decimal Inch, 4-1/2 in

Zoro # G621726300
Mfr # 902-000-123
product price:  $68.29
/ea
Keo Counterbore, Decimal Inch, 4-1/2 in 902-000-114
Keo

Counterbore, Decimal Inch, 4-1/2 in

Zoro # G821726896
Mfr # 902-000-114
product price:  $70.69
/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:  $56.99
/ea
Garant Counterbore for Through Holes, 180 Deg, Uncoated, 18X10.5 mm 156020 18X10,5
Garant

Counterbore for Through Holes, 180 Deg, Uncoated, 18X10.5 mm

Zoro # G414389545
Mfr # 156020 18X10,5
product price:  $44.15
/ea
Harvey Tool Counterbores - Flat Bottom, 0.2187" (7/32) 23414-C3
Harvey Tool

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

Zoro # G7259204
Mfr # 23414-C3
product price:  $79.39
/ea
Harvey Tool Counterbores - Flat Bottom, 0.2031" (13/64) 23413
Harvey Tool

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

Zoro # G7150948
Mfr # 23413
product price:  $67.29
/ea
Harvey Tool Counterbores - Flat Bottom 23420-C6
Harvey Tool

Counterbores - Flat Bottom

Zoro # G804195442
Mfr # 23420-C6
product price:  $92.59
/ea
Keo Counterbore, Decimal Inch, 6 in 902-000-159
Keo

Counterbore, Decimal Inch, 6 in

Zoro # G421726128
Mfr # 902-000-159
product price:  $125.99
/ea
Harvey Tool 0.1250 in. 1/8 Cutter dia x 1/2 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes 731608
Harvey Tool

0.1250 in. 1/8 Cutter dia x 1/2 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes

Zoro # G911324988
Mfr # 731608
product price:  $54.79
/ea
Keo Counterbore, Metric, 100 mm 902-000-264
Keo

Counterbore, Metric, 100 mm

Zoro # G921727458
Mfr # 902-000-264
product price:  $112.99
/ea
Garant Counterbore for Through Holes, 180 Deg, Uncoated, 11X6.6 mm 156020 11X6,6
Garant

Counterbore for Through Holes, 180 Deg, Uncoated, 11X6.6 mm

Zoro # G814389626
Mfr # 156020 11X6,6
product price:  $23.15
/ea
Keo Counterbore, Metric, 80 mm 902-000-231
Keo

Counterbore, Metric, 80 mm

Zoro # G321725443
Mfr # 902-000-231
product price:  $72.89
/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
Keo Counterbore, Decimal Inch, 7 in 902-000-174
Keo

Counterbore, Decimal Inch, 7 in

Zoro # G221725512
Mfr # 902-000-174
product price:  $258.99
/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, 0.0937" (3/32) 23393
Harvey Tool

Counterbores - Flat Bottom, 0.0937" (3/32)

Zoro # G7149198
Mfr # 23393
product price:  $51.29
/ea
Harvey Tool Counterbores - Flat Bottom 23360-C3
Harvey Tool

Counterbores - Flat Bottom

Zoro # G901019412
Mfr # 23360-C3
product price:  $58.49
/ea
Harvey Tool 1/8 in. Cutter dia. x 1/2 in. Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, TiB2 Coated 23408-C8
Harvey Tool

1/8 in. Cutter dia. x 1/2 in. Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, TiB2 Coated

Zoro # G711326410
Mfr # 23408-C8
product price:  $58.49
/ea
Keo Counterbore, Decimal Inch, 4-1/2 in 902-000-313
Keo

Counterbore, Decimal Inch, 4-1/2 in

Zoro # G921726406
Mfr # 902-000-313
product price:  $92.89
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.5000" (1/2) 25532
Harvey Tool

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

Zoro # G7266089
Mfr # 25532
product price:  $206.99
/ea
Garant Counterbore with Interchangeable Pilot Pins, 26 mm 156520 26
Garant

Counterbore with Interchangeable Pilot Pins, 26 mm

Zoro # G714389757
Mfr # 156520 26
product price:  $137.99
/ea
Keo Counterbore, Decimal Inch, 4-1/2 in 902-000-314
Keo

Counterbore, Decimal Inch, 4-1/2 in

Zoro # G221724614
Mfr # 902-000-314
product price:  $86.15
/ea
Counterbores (927 items) - Page 13
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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 BitsCountersinksSquare End Mills
Drill Bit SetsCenter DrillsTap SetsTap WrenchesAuger Drill Bits
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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