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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
  8. /
  9. Counterbores

Counterbores (929 items) - Page 21

Link Ua6-5/16 English Shcs HSS Counterbore 60-L2-298
Link

Ua6-5/16 English Shcs HSS Counterbore

Zoro # G7638787
Mfr # 60-L2-298
product price:  $27.89
/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-219-250 N/C Counterbore 85-2191
Internal Tool

A Nc-219-250 N/C Counterbore

Zoro # G900402406
Mfr # 85-2191
product price:  $56.79
/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:  $121.99
/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
Tungaloy Solid End Mill Head, VGC120L10.0R20-, PK2 6859335
Tungaloy

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

Zoro # G901779019
Mfr # 6859335
product price:  $157.99
/pk 2, $79.00/ea
Super Tool Reduced Shank Counterbore, 9/32" D 52209
Super Tool

Reduced Shank Counterbore, 9/32" D

Zoro # G0331550
Mfr # 52209
product price:  $78.49
/ea
Link 4MM HSS Se 4.36 X 7.54 Drill 7.54 Cbore 6.35 Shank 34.92 Oal 75-L2-521
Link

4MM HSS Se 4.36 X 7.54 Drill 7.54 Cbore 6.35 Shank 34.92 Oal

Zoro # G7643775
Mfr # 75-L2-521
product price:  $20.89
/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
Tungaloy Solid End Mill Head, VGC098L09.0R03-, PK2 6859366
Tungaloy

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

Zoro # G001779070
Mfr # 6859366
product price:  $121.99
/pk 2, $61.00/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
Super Tool Counterbore, 1-3/16" D, Carbide Tipped 59816
Super Tool

Counterbore, 1-3/16" D, Carbide Tipped

Zoro # G0329782
Mfr # 59816
product price:  $149.99
/ea
Tungaloy Solid End Mill Head, VGC160L15.0R04-, PK2 6859480
Tungaloy

Solid End Mill Head, VGC160L15.0R04-, PK2

Zoro # G501779006
Mfr # 6859480
product price:  $236.99
/pk 2, $118.50/ea
No Product Image Available
Keo

Counterbore, Decimal Inch, 7 in

Zoro # G621726775
Mfr # 902-000-295
product price:  $537.99
/ea
No Product Image Available
Keo

Counterbore, Decimal Inch, 3 in

Zoro # G621725716
Mfr # 902-000-330
product price:  $56.49
/ea
Link #5 3Xd HSS Se .138 X .414 Drill .220 Cbore 1/4 Shank 2 Oal 50-L2-380
Link

#5 3Xd HSS Se .138 X .414 Drill .220 Cbore 1/4 Shank 2 Oal

Zoro # G7644840
Mfr # 50-L2-380
product price:  $30.55
/ea
No Product Image Available
Keo

Counterbore, Decimal Inch, 4-1/2 in

Zoro # G921726161
Mfr # 902-000-316
product price:  $71.29
/ea
Internal Tool A Nc-703-750 N/C Counterbore 85-7031
Internal Tool

A Nc-703-750 N/C Counterbore

Zoro # G900402499
Mfr # 85-7031
product price:  $465.99
/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
Super Tool Counterbore, 1-1/8" D, Carbide Tipped 59815
Super Tool

Counterbore, 1-1/8" D, Carbide Tipped

Zoro # G0329633
Mfr # 59815
product price:  $138.99
/ea
Tungaloy Solid End Mill Head, VGC160L15.0R08-, PK2 6859391
Tungaloy

Solid End Mill Head, VGC160L15.0R08-, PK2

Zoro # G201779061
Mfr # 6859391
product price:  $236.99
/pk 2, $118.50/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:  $124.99
/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
No Product Image Available
Keo

Counterbore, Decimal Inch, 6 in

Zoro # G821725295
Mfr # 902-000-168
product price:  $162.99
/ea
No Product Image Available
Keo

Counterbore, Metric, 80 mm

Zoro # G521725885
Mfr # 902-000-237
product price:  $65.89
/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:  $185.39
/ea
Super Tool Reduced Shank Counterbore, 27/32" D 52227
Super Tool

Reduced Shank Counterbore, 27/32" D

Zoro # G0331480
Mfr # 52227
product price:  $133.99
/ea
No Product Image Available
Keo

Counterbore, Decimal Inch, 4-1/2 in

Zoro # G321725061
Mfr # 902-000-320
product price:  $68.89
/ea
Super Tool Counterbore, 29/32" D, Carbide Tipped 5799062
Super Tool

Counterbore, 29/32" D, Carbide Tipped

Zoro # G0330239
Mfr # 5799062
product price:  $161.99
/ea
No Product Image Available
Keo

Counterbore, Decimal Inch, 3 in

Zoro # G321727010
Mfr # 902-000-084
product price:  $54.59
/ea
No Product Image Available
Keo

Counterbore, Metric, 100 mm

Zoro # G421727507
Mfr # 902-000-267
product price:  $102.99
/ea
Super Tool Reduced Shank Counterbore, 11/32" D 52211
Super Tool

Reduced Shank Counterbore, 11/32" D

Zoro # G0331447
Mfr # 52211
product price:  $68.69
/ea
No Product Image Available
Keo

Counterbore, Decimal Inch, 7 in

Zoro # G121726442
Mfr # 902-000-296
product price:  $537.99
/ea
No Product Image Available
Keo

Counterbore, Decimal Inch, 3 in

Zoro # G521725038
Mfr # 902-000-328
product price:  $58.29
/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:  $227.99
/ea
No Product Image Available
Keo

Counterbore, Decimal Inch, 5 in

Zoro # G421725626
Mfr # 902-000-150
product price:  $99.79
/ea
Counterbores (929 items) - Page 21
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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

CountersinksReduced Shank Drill BitsHole SawsSquare End MillsJobber Length Drill Bits
Center DrillsSpiral Flute 3-Flute TapsCarbide End MillsAuger Drill BitsDrill Bit Sets
pilot counterbore5/8 counterbore6-piece damask jacquard/solidcleveland counterborecounter bore
1-1/4 in counterborehigh speed steelinterchangeable pilot counterboremetric shcscounter bore pilot

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