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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 17

Super Tool Counterbore, 9/16" D, Carbide Tipped 59806
Super Tool

Counterbore, 9/16" D, Carbide Tipped

Zoro # G0329913
Mfr # 59806
product price: 
$117.99
/ea
Link #6 HSS Se .150 X .250 Drill .242 Cbore 3/16 Shank 1-7/32 Oal 50-L2-181
Link

#6 HSS Se .150 X .250 Drill .242 Cbore 3/16 Shank 1-7/32 Oal

Zoro # G7639986
Mfr # 50-L2-181
product price: 
$20.89
/ea
Link 7/16" 3Xd HSS Se .468 X 1.404 Drill .688 Cbore 1/2 Shank 4 Oal 50-L2-387
Link

7/16" 3Xd HSS Se .468 X 1.404 Drill .688 Cbore 1/2 Shank 4 Oal

Zoro # G7638778
Mfr # 50-L2-387
product price: 
$81.49
/ea
Internal Tool A Nc-609-625 N/C Counterbore 85-6091
Internal Tool

A Nc-609-625 N/C Counterbore

Zoro # G100402503
Mfr # 85-6091
product price: 
$331.99
/ea
Link Ua4-5MM Metric Shcs HSS Counterbore 72-L2-512
Link

Ua4-5MM Metric Shcs HSS Counterbore

Zoro # G7643976
Mfr # 72-L2-512
product price: 
$26.65
/ea
Super Tool Counterbore, 1-7/16" D, Carbide Tipped 56420
Super Tool

Counterbore, 1-7/16" D, Carbide Tipped

Zoro # G0329861
Mfr # 56420
product price: 
$238.99
/ea
Harvey Tool Counterbores-Flat Bottom, 676732, Uncoated, 1/2" Cutter Diameter, 1-1/2" Flute Length 676732
Harvey Tool

Counterbores-Flat Bottom, 676732, Uncoated, 1/2" Cutter Diameter, 1-1/2" Flute Length

Zoro # G422920709
Mfr # 676732
product price: 
$161.99
/ea
Link 6MM Co 3Fl 6.8 Pilot X 10.8 Cbore 7.94 Shank X 100 Oal 75-CO-523
Link

6MM Co 3Fl 6.8 Pilot X 10.8 Cbore 7.94 Shank X 100 Oal

Zoro # G7639934
Mfr # 75-CO-523
product price: 
$81.15
/ea
Tungaloy Solid End Mill Head, VGC078L08.0R02-, PK2 6859332
Tungaloy

Solid End Mill Head, VGC078L08.0R02-, PK2

Zoro # G401778987
Mfr # 6859332
product price: 
$139.99
/pk of 2, $70.00/ea
Kodiak Cutting Tools No. 1 Counterbores On Size Capscrew Style 5495798
Kodiak Cutting Tools

No. 1 Counterbores On Size Capscrew Style

Zoro # G8614797
Mfr # 5495798
product price: 
$278.99
/ea
Morse Cap Screw Counterbore, Straight Shank, Series 1766, 6 mm Screw, 04134 Bore Dia, 618 Overall Le 25749
Morse

Cap Screw Counterbore, Straight Shank, Series 1766, 6 mm Screw, 04134 Bore Dia, 618 Overall Le

Zoro # G808029064
Mfr # 25749
product price: 
$82.25
/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
Link Ua7-3/8 English Shcs HSS Counterbore 60-L2-299
Link

Ua7-3/8 English Shcs HSS Counterbore

Zoro # G7638744
Mfr # 60-L2-299
product price: 
$30.99
/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
Internal Tool A Nc-515-562 N/C Counterbore 85-5151
Internal Tool

A Nc-515-562 N/C Counterbore

Zoro # G100402497
Mfr # 85-5151
product price: 
$232.99
/ea
Super Tool Reduced Shank Counterbore, 1-13/16" D 52258
Super Tool

Reduced Shank Counterbore, 1-13/16" D

Zoro # G0331462
Mfr # 52258
product price: 
$247.99
/ea
Link #5 HSS Se .138 X .250 Drill .220 Cbore 1/4 Shank 1-7/32 Oal 50-L2-180
Link

#5 HSS Se .138 X .250 Drill .220 Cbore 1/4 Shank 1-7/32 Oal

Zoro # G7642707
Mfr # 50-L2-180
product price: 
$18.15
/ea
Link #4 HSS Se .125 X .220 Drill .197 Cbore 1/4 Shank 1-3/16 Oal 50-L2-179
Link

#4 HSS Se .125 X .220 Drill .197 Cbore 1/4 Shank 1-3/16 Oal

Zoro # G7636109
Mfr # 50-L2-179
product price: 
$21.29
/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 of 2, $81.50/ea
Link 5MM Co 3Fl 5.8 Pilot X 9.3 Cbore 6.35 Shank X 100 Oal 75-CO-522
Link

5MM Co 3Fl 5.8 Pilot X 9.3 Cbore 6.35 Shank X 100 Oal

Zoro # G7644965
Mfr # 75-CO-522
product price: 
$74.35
/ea
Kodiak Cutting Tools No. 3/8 Counterbores 1/32 Oversize Capscrew Style 5496040
Kodiak Cutting Tools

No. 3/8 Counterbores 1/32 Oversize Capscrew Style

Zoro # G8640170
Mfr # 5496040
product price: 
$71.35
/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
Harvey Tool Counterbores-Flat Bottom, 676716-C3, AlTiN, 1/4" Cutter Diameter, 1-5/16" Flute Length 676716-C3
Harvey Tool

Counterbores-Flat Bottom, 676716-C3, AlTiN, 1/4" Cutter Diameter, 1-5/16" Flute Length

Zoro # G522920609
Mfr # 676716-C3
product price: 
$80.35
/ea
Super Tool Counterbore, 1-13/16" D, Carbide Tipped 56425
Super Tool

Counterbore, 1-13/16" D, Carbide Tipped

Zoro # G0329922
Mfr # 56425
product price: 
$396.99
/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 of 2, $101.00/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. 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: 
$43.85
/ea
Tungaloy Solid End Mill Head, VGC120L10.0R10-, PK2 6859505
Tungaloy

Solid End Mill Head, VGC120L10.0R10-, PK2

Zoro # G401779069
Mfr # 6859505
product price: 
$197.99
/pk of 2, $99.00/ea
Super Tool Counterbore, 7/8" D, Carbide Tipped 59811
Super Tool

Counterbore, 7/8" D, Carbide Tipped

Zoro # G0329968
Mfr # 59811
product price: 
$149.99
/ea
Internal Tool A Nc-234-250 N/C Counterbore 85-2341
Internal Tool

A Nc-234-250 N/C Counterbore

Zoro # G100402404
Mfr # 85-2341
product price: 
$59.59
/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
Tungaloy Solid End Mill Head, VGC100L09.0R04-, PK2 6859479
Tungaloy

Solid End Mill Head, VGC100L09.0R04-, PK2

Zoro # G001779018
Mfr # 6859479
product price: 
$159.99
/pk of 2, $80.00/ea
Tungaloy Solid End Mill Head, VGC157L15.0R03-, PK2 6859506
Tungaloy

Solid End Mill Head, VGC157L15.0R03-, PK2

Zoro # G601779043
Mfr # 6859506
product price: 
$108.99
/pk of 2, $54.50/ea
Internal Tool A Nc-312-312 N/C Counterbore 85-3121
Internal Tool

A Nc-312-312 N/C Counterbore

Zoro # G100402381
Mfr # 85-3121
product price: 
$80.49
/ea
Internal Tool A Nc-156-187 N/C Counterbore 85-1561
Internal Tool

A Nc-156-187 N/C Counterbore

Zoro # G500402448
Mfr # 85-1561
product price: 
$50.39
/ea
Morse Cap Screw Counterbore, Straight Shank, Series 1766, 12 mm Screw, 06496 Bore Dia, 712 Overall L 25752
Morse

Cap Screw Counterbore, Straight Shank, Series 1766, 12 mm Screw, 06496 Bore Dia, 712 Overall L

Zoro # G908029070
Mfr # 25752
product price: 
$125.99
/ea
Counterbores (927 items) - Page 17
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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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