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  7. Porting Tools & Counterbores
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  9. Counterbores
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Counterbores (929 items) - Page 26

Internal Tool A Nc-562-562 N/C Counterbore 85-5621
Internal Tool

A Nc-562-562 N/C Counterbore

Zoro # G000402535
Mfr # 85-5621
product price:  $282.99
/ea
No Product Image Available
Keo

Counterbore, Decimal Inch, 7 in

Zoro # G421724704
Mfr # 902-000-171
product price:  $237.99
/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:  $56.75
/ea
Hhip 5/16 X 7/16" High Speed Steel 2 Flute Solid  Cap Screw Counterbore 2007-0106
Hhip

5/16 X 7/16" High Speed Steel 2 Flute Solid Cap Screw Counterbore

Zoro # G2467895
Mfr # 2007-0106
product price:  $17.99
/ea
No Product Image Available
Keo

Counterbore, Decimal Inch, 6 in

Zoro # G421726128
Mfr # 902-000-159
product price:  $115.99
/ea
Super Tool Reduced Shank Counterbore, 1-15/16" D 52262
Super Tool

Reduced Shank Counterbore, 1-15/16" D

Zoro # G0331453
Mfr # 52262
product price:  $263.99
/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
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:  $179.99
/ea
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
No Product Image Available
Keo

Counterbore, Metric, 100 mm

Zoro # G921727458
Mfr # 902-000-264
product price:  $102.99
/ea
No Product Image Available
Keo

Counterbore, Decimal Inch, 4-1/2 in

Zoro # G621725921
Mfr # 902-000-317
product price:  $75.89
/ea
Garant Interchangeable Pilot Pin for Counterbore 156520 26-30, 19 mm 156620 8X19
Garant

Interchangeable Pilot Pin for Counterbore 156520 26-30, 19 mm

Zoro # G714389580
Mfr # 156620 8X19
product price:  $38.19
/ea
No Product Image Available
Keo

Counterbore, Metric, 80 mm

Zoro # G321725443
Mfr # 902-000-231
product price:  $66.99
/ea
No Product Image Available
Keo

Counterbore, Decimal Inch, 3 in

Zoro # G521725038
Mfr # 902-000-328
product price:  $58.29
/ea
Link Ua7-7/16 English Shcs HSS Counterbore 60-L2-300
Link

Ua7-7/16 English Shcs HSS Counterbore

Zoro # G7641316
Mfr # 60-L2-300
product price:  $44.25
/ea
No Product Image Available
Keo

Counterbore, Decimal Inch, 3 in

Zoro # G421725886
Mfr # 902-000-333
product price:  $52.69
/ea
Garant Interchangeable Pilot Pin for Counterbore 156520 18-20, 9 mm 156620 5X9
Garant

Interchangeable Pilot Pin for Counterbore 156520 18-20, 9 mm

Zoro # G014389655
Mfr # 156620 5X9
product price:  $31.79
/ea
No Product Image Available
Keo

Counterbore, Decimal Inch, 6 in

Zoro # G821725295
Mfr # 902-000-168
product price:  $162.99
/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:  $235.99
/ea
Internal Tool A Nc-421-437 N/C Counterbore 85-4211
Internal Tool

A Nc-421-437 N/C Counterbore

Zoro # G600402362
Mfr # 85-4211
product price:  $132.99
/ea
Garant Interchangeable Pilot Pin for Counterbore 156520 26-30, 17 mm 156620 8X17
Garant

Interchangeable Pilot Pin for Counterbore 156520 26-30, 17 mm

Zoro # G214389547
Mfr # 156620 8X17
product price:  $38.19
/ea
No Product Image Available
Keo

Counterbore, Decimal Inch, 5 in

Zoro # G121726527
Mfr # 902-000-135
product price:  $85.89
/ea
No Product Image Available
Keo

Counterbore, Decimal Inch, 4-1/2 in

Zoro # G921726161
Mfr # 902-000-316
product price:  $71.29
/ea
Super Tool Counterbore, 11/32" D, Carbide Tipped 5793438
Super Tool

Counterbore, 11/32" D, Carbide Tipped

Zoro # G0330272
Mfr # 5793438
product price:  $117.99
/ea
Internal Tool A Nc-625-625 N/C Counterbore 85-6251
Internal Tool

A Nc-625-625 N/C Counterbore

Zoro # G500402530
Mfr # 85-6251
product price:  $320.99
/ea
Super Tool Reduced Shank Counterbore, 1-7/16" D 52246
Super Tool

Reduced Shank Counterbore, 1-7/16" D

Zoro # G0331392
Mfr # 52246
product price:  $192.99
/ea
Garant Interchangeable Pilot Pin for Counterbore 156520 26-30, 17.5 mm 156620 8X17,5
Garant

Interchangeable Pilot Pin for Counterbore 156520 26-30, 17.5 mm

Zoro # G514389551
Mfr # 156620 8X17,5
product price:  $38.19
/ea
Link 3MM HSS Se 3.57 X 6.35 Drill 5.95 Cbore 6.35 Shank 31.75 Oal 75-L2-520
Link

3MM HSS Se 3.57 X 6.35 Drill 5.95 Cbore 6.35 Shank 31.75 Oal

Zoro # G7636136
Mfr # 75-L2-520
product price:  $21.75
/ea
Tungaloy Solid End Mill Head, VGC120L10.0R04-, PK2 6859334
Tungaloy

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

Zoro # G401779090
Mfr # 6859334
product price:  $154.99
/pk 2, $77.50/ea
Counterbores (929 items) - Page 26
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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

Port ToolsJobber Length Drill BitsHole SawsSquare End MillsHammer Drill Bits
CountersinksSpiral Flute 3-Flute TapsExtra Long Drill BitsReduced Shank Drill BitsHigh Speed Steel Chucking Reamers
counter bore6-piece damask jacquard/solidinterchangeable pilot counterborepilot counterbore5/8 counterbore
metric shcscounterbores - flat bottom1-1/4 in counterborecleveland counterborecounter bore set

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