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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 16

Super Tool Reduced Shank Counterbore, 29/32" D 52229
Super Tool

Reduced Shank Counterbore, 29/32" D

Zoro # G0331228
Mfr # 52229
product price: 
$135.99
/ea
Super Tool Counterbore, 13/16" D, Carbide Tipped 56410
Super Tool

Counterbore, 13/16" D, Carbide Tipped

Zoro # G0330141
Mfr # 56410
product price: 
$120.99
/ea
Kodiak Cutting Tools 7/16 Counterbore 1/64 Oversize Capscrew Style 5495897
Kodiak Cutting Tools

7/16 Counterbore 1/64 Oversize Capscrew Style

Zoro # G8630109
Mfr # 5495897
product price: 
$81.69
/ea
Internal Tool A Nc-140-187 N/C Counterbore 85-1401
Internal Tool

A Nc-140-187 N/C Counterbore

Zoro # G600402416
Mfr # 85-1401
product price: 
$50.39
/ea
Internal Tool A Nc-484-500 N/C Counterbore 85-4841
Internal Tool

A Nc-484-500 N/C Counterbore

Zoro # G200402397
Mfr # 85-4841
product price: 
$170.99
/ea
Super Tool Reduced Shank Counterbore, 17/32" D 52217
Super Tool

Reduced Shank Counterbore, 17/32" D

Zoro # G0331401
Mfr # 52217
product price: 
$91.15
/ea
Kodiak Cutting Tools No. 5 Counterbores On Size Capscrew Style 5495666
Kodiak Cutting Tools

No. 5 Counterbores On Size Capscrew Style

Zoro # G8655074
Mfr # 5495666
product price: 
$39.59
/ea
Super Tool Reduced Shank Counterbore, 1-1/8" D 52236
Super Tool

Reduced Shank Counterbore, 1-1/8" D

Zoro # G0331593
Mfr # 52236
product price: 
$185.99
/ea
Super Tool 1 in. dia. Carbide Tipped Counterbore for Steel, Morse Taper Shank No. 3, 3 flutes 47421
Super Tool

1 in. dia. Carbide Tipped Counterbore for Steel, Morse Taper Shank No. 3, 3 flutes

Zoro # G810744221
Mfr # 47421
product price: 
$174.99
/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
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
Qualtech Counterbore, Round Shank, Series DEWCBR, 6364 Bore, 638 Overall Length, 34 Shank Diameter, 5 DEWCBR63/64
Qualtech

Counterbore, Round Shank, Series DEWCBR, 6364 Bore, 638 Overall Length, 34 Shank Diameter, 5

Zoro # G808029088
Mfr # DEWCBR63/64
product price: 
$76.99
/ea
Internal Tool A Nc-171-187 N/C Counterbore 85-1711
Internal Tool

A Nc-171-187 N/C Counterbore

Zoro # G300402433
Mfr # 85-1711
product price: 
$49.15
/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
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
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
Link Ua4-6MM Metric Shcs HSS Counterbore 72-L2-513
Link

Ua4-6MM Metric Shcs HSS Counterbore

Zoro # G7642725
Mfr # 72-L2-513
product price: 
$32.75
/ea
Super Tool Counterbore, 11/16" D, Carbide Tipped 59808
Super Tool

Counterbore, 11/16" D, Carbide Tipped

Zoro # G0330257
Mfr # 59808
product price: 
$129.99
/ea
Hhip 1/2 X 3/4" Shank High Speed Steel 2 Flute Solid  Cap Screw Counterbore 2007-0109
Hhip

1/2 X 3/4" Shank High Speed Steel 2 Flute Solid Cap Screw Counterbore

Zoro # G2468236
Mfr # 2007-0109
product price: 
$21.79
/ea
Kodiak Cutting Tools No. 4 Counterbores 1/64 Oversize Capscrew Style 5495809
Kodiak Cutting Tools

No. 4 Counterbores 1/64 Oversize Capscrew Style

Zoro # G8615585
Mfr # 5495809
product price: 
$44.65
/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
Hhip 6 Piece M4-M12 HSS 3 Flute Straight Shank Solid Pilot Counterbore Set 2007-0001
Hhip

6 Piece M4-M12 HSS 3 Flute Straight Shank Solid Pilot Counterbore Set

Zoro # G612482277
Mfr # 2007-0001
product price: 
$54.29
/ea
Link #10 HSS Se .200 X .312 Drill .332 Cbore 5/16 Shank 1-1/2 Oal 50-L2-183
Link

#10 HSS Se .200 X .312 Drill .332 Cbore 5/16 Shank 1-1/2 Oal

Zoro # G7638875
Mfr # 50-L2-183
product price: 
$20.35
/ea
Internal Tool A Nc-750-750 N/C Counterbore 85-7501
Internal Tool

A Nc-750-750 N/C Counterbore

Zoro # G900402642
Mfr # 85-7501
product price: 
$441.99
/ea
Tungaloy Solid End Mill Head, VGC080L08.0R20-, PK2 6859504
Tungaloy

Solid End Mill Head, VGC080L08.0R20-, PK2

Zoro # G401779045
Mfr # 6859504
product price: 
$139.99
/pk 2, $70.00/ea
Kodiak Cutting Tools 1/4 Counterbore 1/32 Oversize Capscrew Style 5496018
Kodiak Cutting Tools

1/4 Counterbore 1/32 Oversize Capscrew Style

Zoro # G8636269
Mfr # 5496018
product price: 
$49.35
/ea
Link No 8 Co 3Fl 0.195 Pilot X 0.304 Cbore 1/4" Shank X 4" Oal 50-CO-182
Link

No 8 Co 3Fl 0.195 Pilot X 0.304 Cbore 1/4" Shank X 4" Oal

Zoro # G7639959
Mfr # 50-CO-182
product price: 
$64.95
/ea
Link Ua7-12MM Metric Shcs HSS Counterbore 72-L2-516
Link

Ua7-12MM Metric Shcs HSS Counterbore

Zoro # G7643985
Mfr # 72-L2-516
product price: 
$51.65
/ea
Link Ua5-8MM Metric Shcs HSS Counterbore 72-L2-514
Link

Ua5-8MM Metric Shcs HSS Counterbore

Zoro # G7642759
Mfr # 72-L2-514
product price: 
$32.95
/ea
Internal Tool A Nc-328-375 N/C Counterbore 85-3281
Internal Tool

A Nc-328-375 N/C Counterbore

Zoro # G300402402
Mfr # 85-3281
product price: 
$104.99
/ea
Internal Tool A Nc-672-750 N/C Counterbore 85-6721
Internal Tool

A Nc-672-750 N/C Counterbore

Zoro # G700402484
Mfr # 85-6721
product price: 
$444.99
/ea
Link #8 HSS Se .178 X .281 Drill .290 Cbore 5/16 Shank 1-15/32 Oal 50-L2-182
Link

#8 HSS Se .178 X .281 Drill .290 Cbore 5/16 Shank 1-15/32 Oal

Zoro # G7636215
Mfr # 50-L2-182
product price: 
$21.45
/ea
Kodiak Cutting Tools 7/16 Counterbore 1/32 Oversize Capscrew Style 5496051
Kodiak Cutting Tools

7/16 Counterbore 1/32 Oversize Capscrew Style

Zoro # G8637477
Mfr # 5496051
product price: 
$81.69
/ea
Link No 5 Co 3Fl 0.156 Pilot X 0.237 Cbore 1/4" Shank X 4" Oal 50-CO-180
Link

No 5 Co 3Fl 0.156 Pilot X 0.237 Cbore 1/4" Shank X 4" Oal

Zoro # G7636145
Mfr # 50-CO-180
product price: 
$65.75
/ea
Link 1/4" Co 3Fl 0.281 Pilot X 0.414 Cbore 5/16" Shank X 4" Oal 50-CO-184
Link

1/4" Co 3Fl 0.281 Pilot X 0.414 Cbore 5/16" Shank X 4" Oal

Zoro # G7637317
Mfr # 50-CO-184
product price: 
$78.85
/ea
Super Tool Reduced Shank Counterbore, 13/16" D 52226
Super Tool

Reduced Shank Counterbore, 13/16" D

Zoro # G0331331
Mfr # 52226
product price: 
$133.99
/ea
Counterbores (927 items) - Page 16
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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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