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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 15

Internal Tool A Nc-500-500 N/C Counterbore 85-5001
Internal Tool

A Nc-500-500 N/C Counterbore

Zoro # G900402536
Mfr # 85-5001
product price: 
$165.99
/ea
Kodiak Cutting Tools No. 4 Counterbores 1/32 Oversize Capscrew Style 5495963
Kodiak Cutting Tools

No. 4 Counterbores 1/32 Oversize Capscrew Style

Zoro # G8627677
Mfr # 5495963
product price: 
$42.35
/ea
Super Tool Reduced Shank Counterbore, 15/16" D 52230
Super Tool

Reduced Shank Counterbore, 15/16" D

Zoro # G0331237
Mfr # 52230
product price: 
$111.99
/ea
Internal Tool A Nc-375-375 N/C Counterbore 85-3751
Internal Tool

A Nc-375-375 N/C Counterbore

Zoro # G600402423
Mfr # 85-3751
product price: 
$108.99
/ea
Internal Tool A Nc-125-125 N/C Counterbore 85-1251
Internal Tool

A Nc-125-125 N/C Counterbore

Zoro # G700402361
Mfr # 85-1251
product price: 
$36.79
/ea
Super Tool Counterbore, 2" D, Carbide Tipped 56428
Super Tool

Counterbore, 2" D, Carbide Tipped

Zoro # G0330248
Mfr # 56428
product price: 
$414.99
/ea
Link 1/4" 3Xd HSS Se .280 X .840 Drill .406 Cbore 3/8 Shank 2-3/4 Oal 50-L2-384
Link

1/4" 3Xd HSS Se .280 X .840 Drill .406 Cbore 3/8 Shank 2-3/4 Oal

Zoro # G7636084
Mfr # 50-L2-384
product price: 
$40.25
/ea
Super Tool Reduced Shank Counterbore, 1-1/16" D 52234
Super Tool

Reduced Shank Counterbore, 1-1/16" D

Zoro # G0331261
Mfr # 52234
product price: 
$170.99
/ea
Kodiak Cutting Tools No. 1 Counterbores 1/32 Oversize Capscrew Style 5496106
Kodiak Cutting Tools

No. 1 Counterbores 1/32 Oversize Capscrew Style

Zoro # G8615357
Mfr # 5496106
product price: 
$241.99
/ea
Internal Tool A Nc-406-437 N/C Counterbore 85-4061
Internal Tool

A Nc-406-437 N/C Counterbore

Zoro # G200402373
Mfr # 85-4061
product price: 
$126.99
/ea
Kodiak Cutting Tools No. 5/8 Counterbores 1/64 Oversize Capscrew Style 5495919
Kodiak Cutting Tools

No. 5/8 Counterbores 1/64 Oversize Capscrew Style

Zoro # G8630687
Mfr # 5495919
product price: 
$171.99
/ea
Link Ua3 #6 English Shcs HSS Counterbore 60-L2-294
Link

Ua3 #6 English Shcs HSS Counterbore

Zoro # G7638769
Mfr # 60-L2-294
product price: 
$22.65
/ea
Kodiak Cutting Tools 1/4 Counterbore 1/64 Oversize Capscrew Style 5495864
Kodiak Cutting Tools

1/4 Counterbore 1/64 Oversize Capscrew Style

Zoro # G8614806
Mfr # 5495864
product price: 
$53.95
/ea
Tungaloy Solid End Mill Head, VGC098L09.0R03-, PK2 6859366
Tungaloy

Solid End Mill Head, VGC098L09.0R03-, PK2

Zoro # G001779070
Mfr # 6859366
product price: 
$159.99
/pk 2, $80.00/ea
Super Tool Reduced Shank Counterbore, 1-1/4" D 52240
Super Tool

Reduced Shank Counterbore, 1-1/4" D

Zoro # G0331532
Mfr # 52240
product price: 
$227.99
/ea
Link Ua3-4MM Metric Shcs HSS Counterbore 72-L2-511
Link

Ua3-4MM Metric Shcs HSS Counterbore

Zoro # G7639995
Mfr # 72-L2-511
product price: 
$24.49
/ea
Kodiak Cutting Tools No. 6 Counterbores 1/64 Oversize Capscrew Style 5495831
Kodiak Cutting Tools

No. 6 Counterbores 1/64 Oversize Capscrew Style

Zoro # G8614824
Mfr # 5495831
product price: 
$43.69
/ea
Super Tool Counterbore, 31/32" D, Carbide Tipped 5799688
Super Tool

Counterbore, 31/32" D, Carbide Tipped

Zoro # G0329828
Mfr # 5799688
product price: 
$139.99
/ea
Harvey Tool Counterbores-Flat Bottom, 676716, Uncoated, 1/4" Cutter Diameter, 1-5/16" Flute Length 676716
Harvey Tool

Counterbores-Flat Bottom, 676716, Uncoated, 1/4" Cutter Diameter, 1-5/16" Flute Length

Zoro # G722920553
Mfr # 676716
product price: 
$68.65
/ea
Qualtech Counterbore, Morse Taper Shank, Series DEWCBR, 234 Bore, 978 Overall Length, 5 Shank Diamete DEWCBRTS2-3/4
Qualtech

Counterbore, Morse Taper Shank, Series DEWCBR, 234 Bore, 978 Overall Length, 5 Shank Diamete

Zoro # G208029152
Mfr # DEWCBRTS2-3/4
product price: 
$507.99
/ea
Internal Tool A Nc-094-125 N/C Counterbore 85-0941
Internal Tool

A Nc-094-125 N/C Counterbore

Zoro # G500402363
Mfr # 85-0941
product price: 
$36.79
/ea
Kodiak Cutting Tools No. 8 Counterbores On Size Capscrew Style 5495688
Kodiak Cutting Tools

No. 8 Counterbores On Size Capscrew Style

Zoro # G8653120
Mfr # 5495688
product price: 
$47.95
/ea
Tungaloy Solid End Mill Head, VGC120L10.0R04-, PK2 6859334
Tungaloy

Solid End Mill Head, VGC120L10.0R04-, PK2

Zoro # G401779090
Mfr # 6859334
product price: 
$197.99
/pk 2, $99.00/ea
Tungaloy Solid End Mill Head, VGC100L09.0R10-, PK2 6859367
Tungaloy

Solid End Mill Head, VGC100L09.0R10-, PK2

Zoro # G801779089
Mfr # 6859367
product price: 
$162.99
/pk 2, $81.50/ea
Kodiak Cutting Tools No. 8 Counterbores 1/32 Oversize Capscrew Style 5495996
Kodiak Cutting Tools

No. 8 Counterbores 1/32 Oversize Capscrew Style

Zoro # G8624396
Mfr # 5495996
product price: 
$47.95
/ea
Kodiak Cutting Tools 1/4 Counterbore On Size Capscrew Style 5495710
Kodiak Cutting Tools

1/4 Counterbore On Size Capscrew Style

Zoro # G8645974
Mfr # 5495710
product price: 
$49.35
/ea
Link Ua3-3MM Metric Shcs HSS Counterbore 72-L2-510
Link

Ua3-3MM Metric Shcs HSS Counterbore

Zoro # G7636075
Mfr # 72-L2-510
product price: 
$23.49
/ea
Link Ua6-10MM Metric Shcs HSS Counterbore 72-L2-515
Link

Ua6-10MM Metric Shcs HSS Counterbore

Zoro # G7643967
Mfr # 72-L2-515
product price: 
$37.79
/ea
Super Tool Counterbore, 23/32" D, Carbide Tipped 5797188
Super Tool

Counterbore, 23/32" D, Carbide Tipped

Zoro # G0330071
Mfr # 5797188
product price: 
$122.99
/ea
Internal Tool A Nc-390-437 N/C Counterbore 85-3901
Internal Tool

A Nc-390-437 N/C Counterbore

Zoro # G100402466
Mfr # 85-3901
product price: 
$127.99
/ea
Internal Tool A Nc-547-562 N/C Counterbore 85-5471
Internal Tool

A Nc-547-562 N/C Counterbore

Zoro # G000402504
Mfr # 85-5471
product price: 
$232.99
/ea
Morse Cap Screw Counterbore, Straight Shank, Series 1766, 8 mm Screw, 05315 Bore Dia, 612 Overall Le 25750
Morse

Cap Screw Counterbore, Straight Shank, Series 1766, 8 mm Screw, 05315 Bore Dia, 612 Overall Le

Zoro # G608029127
Mfr # 25750
product price: 
$89.95
/ea
Super Tool Counterbore, 1-5/16" D, Carbide Tipped 56418
Super Tool

Counterbore, 1-5/16" D, Carbide Tipped

Zoro # G0329767
Mfr # 56418
product price: 
$166.99
/ea
Super Tool Reduced Shank Counterbore, 1-5/8" D 52252
Super Tool

Reduced Shank Counterbore, 1-5/8" D

Zoro # G0331383
Mfr # 52252
product price: 
$280.99
/ea
Tungaloy Solid End Mill Head, VGC120L10.0R20-, PK2 6859335
Tungaloy

Solid End Mill Head, VGC120L10.0R20-, PK2

Zoro # G901779019
Mfr # 6859335
product price: 
$201.99
/pk 2, $101.00/ea
Kodiak Cutting Tools No. 10 Counterbores 1/32 Oversize Capscrew Style 5496007
Kodiak Cutting Tools

No. 10 Counterbores 1/32 Oversize Capscrew Style

Zoro # G8622795
Mfr # 5496007
product price: 
$47.99
/ea
Counterbores (927 items) - Page 15
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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 DrillsHammer 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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