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1/8 In. x 2-3/4 In. Cobalt Drill Bit
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CO2135
Bosch cobalt drill bits are specially designed for drilling in hard steel. Thick web helix delivers fast material removal combined with increased durability for maximum efficiency and performance. Each bit is manufactured to exacting specifications and features a split point that starts on contact with no walking or skating, eliminating the need for a center punch.
Benefits
Withstands high-temperature applications for extended periods of time (up to 1,100°F)
Available in jobber length, full shank
Rigid, thick web design adds stability to bit in tough applications
Best used for drilling into light-gauge metal, high-carbon steel, aluminum and ally steel, cast iron, stainless steel and titanium
Surface hardened to penetrate tough abrasive materials
Technical Data
| *Note | 1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger |
| Diameter inch | 1/8" |
| Flute Length in | 1.62 |
| Length in | 2.75" |
| Overall Length in | 2.75 |
| Pack Quantity | 1 |
| Shank Diameter in | 0.125 |
CO2135
CO2135
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CO2131
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CO2132
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CO2133
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CO2134
CO2136
CO2137
CO2138
CO2140
CO2142
CO2144
CO2145
CO2146
CO2147
CO2148
CO2149
CO2150
CO2151
CO2152
CO2153
CO2154
CO2155
CO2157
CO2158
CO2159
CO4128
CO4130
CO4131
CO4132
CO4133
CO4134
CO4135
CO4136
CO4137
CO4138
CO4140
CO4141
CO4142
CO4143
CO4144
CO4145
CO4146
CO4147
CO4148
CO4149
CO4150
CO4152
CO4154
CO4155
CO4156
CO4157
CO4158
CO4159
Other sizes
CO2131
Diameter inch
1/16"
Overall Length in
1.875
Shank Diameter in
0.0625
Pack Quantity
1
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO2132
Diameter inch
5/64"
Overall Length in
2
Shank Diameter in
0.0781
Pack Quantity
1
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO2133
Diameter inch
3/32"
Overall Length in
2.25
Shank Diameter in
0.0937
Pack Quantity
1
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO2134
Diameter inch
7/64"
Overall Length in
2.625
Shank Diameter in
0.109298
Pack Quantity
1
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO2136
Diameter inch
9/64"
Overall Length in
2.875
Shank Diameter in
0.1406
Pack Quantity
1
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO2137
Diameter inch
5/32"
Overall Length in
3.125
Shank Diameter in
0.15625
Pack Quantity
1
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO2138
Diameter inch
11/64"
Overall Length in
3.25
Shank Diameter in
0.1718
Pack Quantity
1
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO2140
Diameter inch
13/64"
Overall Length in
3.625
Shank Diameter in
0.2031
Pack Quantity
1
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO2142
Diameter inch
15/64"
Overall Length in
3.875
Shank Diameter in
0.2343
Pack Quantity
1
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO2149
Diameter inch
11/32"
Overall Length in
4.75
Shank Diameter in
0.3437
Pack Quantity
1
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO2150
Diameter inch
23/64"
Overall Length in
4.875
Shank Diameter in
0.3593
Pack Quantity
1
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO2151
Diameter inch
3/8"
Overall Length in
5
Shank Diameter in
0.375
Pack Quantity
1
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO2152
Diameter inch
25/64"
Overall Length in
5.125
Shank Diameter in
0.3906
Pack Quantity
1
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO2153
Diameter inch
13/32"
Overall Length in
5.25
Shank Diameter in
0.4062
Pack Quantity
1
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO2154
Diameter inch
27/64"
Overall Length in
5.375
Shank Diameter in
0.4218
Pack Quantity
1
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO2155
Diameter inch
7/16"
Overall Length in
5.5
Shank Diameter in
0.4375
Pack Quantity
1
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO2157
Diameter inch
15/32"
Overall Length in
5.75
Shank Diameter in
0.4687
Pack Quantity
1
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO2158
Diameter inch
31/64"
Overall Length in
5.875
Shank Diameter in
0.4843
Pack Quantity
1
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO2159
Diameter inch
1/2"
Overall Length in
6
Shank Diameter in
0.5
Pack Quantity
1
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO4128
Diameter inch
1/64"
Overall Length in
0.75
Shank Diameter in
0.0156
Pack Quantity
12
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO4130
Diameter inch
3/64"
Overall Length in
1.75
Shank Diameter in
0.0468
Pack Quantity
12
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO4131
Diameter inch
1/16"
Overall Length in
1.875
Shank Diameter in
0.0625
Pack Quantity
12
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO4132
Diameter inch
5/64"
Overall Length in
2
Shank Diameter in
0.0781
Pack Quantity
12
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO4133
Diameter inch
3/32"
Overall Length in
2.25
Shank Diameter in
0.0937
Pack Quantity
12
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO4134
Diameter inch
7/64"
Overall Length in
2.625
Shank Diameter in
0.109298
Pack Quantity
12
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO4135
Diameter inch
1/8"
Overall Length in
2.75
Shank Diameter in
0.125
Pack Quantity
12
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO4136
Diameter inch
9/64"
Overall Length in
2.875
Shank Diameter in
0.1406
Pack Quantity
12
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO4137
Diameter inch
5/32"
Overall Length in
3.125
Shank Diameter in
0.15625
Pack Quantity
12
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO4138
Diameter inch
11/64"
Overall Length in
3.25
Shank Diameter in
0.1718
Pack Quantity
12
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO4140
Diameter inch
13/64"
Overall Length in
3.365
Shank Diameter in
0.2031
Pack Quantity
12
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO4141
Diameter inch
7/32"
Overall Length in
3.75
Shank Diameter in
0.2187
Pack Quantity
12
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO4142
Diameter inch
15/64"
Overall Length in
3.875
Shank Diameter in
0.2343
Pack Quantity
12
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO4143
Diameter inch
1/4"
Overall Length in
4
Shank Diameter in
0.25
Pack Quantity
12
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO2144
Diameter inch
17/64"
Overall Length in
4.125
Shank Diameter in
0.2656
Pack Quantity
1
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO2145
Diameter inch
9/32"
Overall Length in
4.25
Shank Diameter in
0.2812
Pack Quantity
1
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO2146
Diameter inch
19/64"
Overall Length in
4.375
Shank Diameter in
0.2968
Pack Quantity
1
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO2147
Diameter inch
5/16"
Overall Length in
4.5
Shank Diameter in
0.3125
Pack Quantity
1
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO2148
Diameter inch
21/64"
Overall Length in
4.625
Shank Diameter in
0.3281
Pack Quantity
1
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO4145
Diameter inch
9/32"
Overall Length in
4.25
Shank Diameter in
0.2812
Pack Quantity
6
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO4146
Diameter inch
19/64"
Overall Length in
4.375
Shank Diameter in
0.2968
Pack Quantity
6
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO4147
Diameter inch
5/16"
Overall Length in
4.5
Shank Diameter in
0.3125
Pack Quantity
6
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO4148
Diameter inch
21/64"
Overall Length in
4.625
Shank Diameter in
0.3281
Pack Quantity
6
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO4149
Diameter inch
11/32"
Overall Length in
4.75
Shank Diameter in
0.3437
Pack Quantity
6
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO4150
Diameter inch
23/64"
Overall Length in
4.875
Shank Diameter in
0.3593
Pack Quantity
6
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO4152
Diameter inch
25/64"
Overall Length in
5.125
Shank Diameter in
0.3906
Pack Quantity
6
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO4154
Diameter inch
27/64"
Overall Length in
5.375
Shank Diameter in
0.4218
Pack Quantity
6
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO4155
Diameter inch
7/16"
Overall Length in
5.5
Shank Diameter in
0.4375
Pack Quantity
6
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO4156
Diameter inch
29/64"
Overall Length in
5.625
Shank Diameter in
0.4531
Pack Quantity
6
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO4157
Diameter inch
15/32"
Overall Length in
5.75
Shank Diameter in
0.4687
Pack Quantity
6
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO4158
Diameter inch
31/64"
Overall Length in
5.875
Shank Diameter in
0.4843
Pack Quantity
6
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO4159
Diameter inch
1/2"
Overall Length in
6
Shank Diameter in
0.5
Pack Quantity
6
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger
CO4144
Diameter inch
17/64"
Overall Length in
4.125
Shank Diameter in
0.2656
Pack Quantity
6
*Note
1/64” – 7/64”: 118° point; 1/8” and larger; 135° point; three flat shank 3/16” and larger