Cobalt Drill Bits
For rotary drills/drivers
Long Lifetime
- Cobalt Twist Drill Bit provides long-lasting performance when drilling stainless steel
- Rigid, thick web design adds stability to bit in tough applications
- Surface hardened to penetrate tough abrasive materials
- Available in jobber length, full shank
- Best used for drilling into light-gauge metal, high-carbon steel, aluminum and ally steel, cast iron, stainless steel and titanium
Materials
Select options
Diameter (D) Inch
Select one option from the listed items below
Total length (L2) Inch
Select one option from the listed items below
Choose a pack size
Select one option from the listed items below
Select options
Diameter (D) Inch 30 options
Total length (L2) Inch 30 options
Choose a pack size 3 options
Cobalt Drill Bits
For rotary drills/drivers
Fits tools of most brands
Cylindrical shank compatible with three-jaw drill chucks.
LONG LIFETIME WHEN DRILLING STAINLESS STEEL
Product Options
Available product options: 53
Expand
|
Model number
|
Diameter (D) Inch
|
Working length (L1) Inch
|
Total length (L2) Inch
|
Pack quantity
|
Availability
|
|---|---|---|---|---|---|---|
| CO2131 | 1/16 | 15/16 | 1 7/8 | 1 | ||
| CO2132 | 5/64 | - | 2 | 1 | ||
| CO2133 | 3/32 | 1 1/4 | 2 1/4 | 1 | ||
| CO2134 | 7/64 | 1 1/2 | 2 5/8 | 1 | ||
| CO2135 | 1/8 | 1 5/8 | 2 3/4 | 1 | ||
| CO2136 | 9/64 | 1 3/4 | 2 7/8 | 1 | ||
| CO2137 | 5/32 | 2 | 3 1/8 | 1 | ||
| CO2138 | 11/64 | 2 1/8 | 3 1/4 | 1 | ||
| CO2140 | 13/64 | 2 7/16 | 3 5/8 | 1 | ||
| CO2142 | 15/64 | 2 5/8 | 3 7/8 | 1 | ||
| CO2144 | 17/64 | 2 7/8 | 4 1/8 | 1 | ||
| CO2145 | 9/32 | 3 | 4 1/4 | 1 | ||
| CO2146 | 19/64 | 3 | 4 3/8 | 1 | ||
| CO2147 | 5/16 | 3 3/16 | 4 1/2 | 1 | ||
| CO2148 | 21/64 | 3 5/16 | 4 5/8 | 1 | ||
| CO2149 | 11/32 | 3 | 4 3/4 | 1 | ||
| CO2150 | 23/64 | 3 1/2 | 4 7/8 | 1 | ||
| CO2151 | 3/8 | 3 5/8 | 5 | 1 | ||
| CO2152 | 25/64 | 3 11/32 | 5 1/8 | 1 | ||
| CO2153 | 13/32 | 3 11/32 | 5 1/4 | 1 | ||
| CO2154 | 27/64 | 15/32 | 5 3/8 | 1 | ||
| CO2155 | 7/16 | 3 1/2 | 5 1/2 | 1 | ||
| CO2157 | 15/32 | 3 3/4 | 5 3/4 | 1 | ||
| CO2158 | 31/64 | 3 7/8 | 5 7/8 | 1 | ||
| CO2159 | 1/2 | 4 | 6 | 1 | ||
| CO4128 | 1/64 | 3/16 | 3/4 | 12 | ||
| CO4130 | 3/64 | 3/4 | 1 3/4 | 12 | ||
| CO4131 | 1/16 | 7/8 | 1 7/8 | 12 | ||
| CO4132 | 5/64 | 1 | 2 | 12 | ||
| CO4133 | 3/32 | 1 1/4 | 2 1/4 | 12 | ||
| CO4134 | 7/64 | 1 1/2 | 2 5/8 | 12 | ||
| CO4135 | 1/8 | 1 5/8 | 2 3/4 | 12 | ||
| CO4136 | 9/64 | 1 3/4 | 2 7/8 | 12 | ||
| CO4137 | 5/32 | 2 | 3 1/8 | 12 | ||
| CO4138 | 11/64 | 2 1/8 | 3 1/4 | 12 | ||
| CO4140 | 13/64 | 2 1/2 | 3 5/8 | 12 | ||
| CO4141 | 7/32 | 2 | 3 3/4 | 12 | ||
| CO4142 | 15/64 | 2 3/4 | 3 7/8 | 12 | ||
| CO4143 | 1/4 | 2 3/4 | 4 | 12 | ||
| CO4144 | 17/64 | 2 7/8 | 4 1/8 | 6 | ||
| CO4145 | 9/32 | 2 61/64 | 4 1/4 | 6 | ||
| CO4146 | 19/64 | 3 | 4 3/8 | 6 | ||
| CO4147 | 5/16 | 3 3/16 | 4 1/2 | 6 | ||
| CO4148 | 21/64 | 3 5/16 | 4 5/8 | 6 | ||
| CO4149 | 11/32 | 3 15/32 | 4 3/4 | 6 | ||
| CO4150 | 23/64 | 3 1/2 | 4 7/8 | 6 | ||
| CO4152 | 25/64 | 3 1/4 | 5 1/8 | 6 | ||
| CO4154 | 27/64 | 3 15/32 | 5 3/8 | 6 | ||
| CO4155 | 7/16 | 3 1/2 | 5 1/2 | 6 | ||
| CO4156 | 29/64 | 3 1/2 | 5 5/8 | 6 | ||
| CO4157 | 15/32 | 3 3/4 | 5 3/4 | 6 | ||
| CO4158 | 31/64 | 3 7/8 | 5 7/8 | 6 | ||
| CO4159 | 1/2 | 4 | 6 | 6 |
out of products
1/16 In. x 1-7/8 In. Cobalt Drill Bit
Model number CO2131
Pack quantity
1
Details
Diameter (D) Inch
1/16
Working length (L1) Inch
15/16
Total length (L2) Inch
1 7/8
5/64 In. x 2 In. Cobalt Drill Bit
Model number CO2132
Pack quantity
1
Details
Diameter (D) Inch
5/64
Working length (L1) Inch
-
Total length (L2) Inch
2
3/32 In. x 2-1/4 In. Cobalt Drill Bit
Model number CO2133
Pack quantity
1
Details
Diameter (D) Inch
3/32
Working length (L1) Inch
1 1/4
Total length (L2) Inch
2 1/4
7/64 In. x 2-5/8 In. Cobalt Drill Bit
Model number CO2134
Pack quantity
1
Details
Diameter (D) Inch
7/64
Working length (L1) Inch
1 1/2
Total length (L2) Inch
2 5/8
1/8 In. x 2-3/4 In. Cobalt Drill Bit
Model number CO2135
Pack quantity
1
Details
Diameter (D) Inch
1/8
Working length (L1) Inch
1 5/8
Total length (L2) Inch
2 3/4
9/64 In. x 2-7/8 In. Cobalt Drill Bit
Model number CO2136
Pack quantity
1
Details
Diameter (D) Inch
9/64
Working length (L1) Inch
1 3/4
Total length (L2) Inch
2 7/8
5/32 In. x 3-1/8 In. Cobalt Drill Bit
Model number CO2137
Pack quantity
1
Details
Diameter (D) Inch
5/32
Working length (L1) Inch
2
Total length (L2) Inch
3 1/8
11/64 In. x 3-1/4 In. Cobalt Drill Bit
Model number CO2138
Pack quantity
1
Details
Diameter (D) Inch
11/64
Working length (L1) Inch
2 1/8
Total length (L2) Inch
3 1/4
13/64 In. x 3-5/8 In. Cobalt Drill Bit
Model number CO2140
Pack quantity
1
Details
Diameter (D) Inch
13/64
Working length (L1) Inch
2 7/16
Total length (L2) Inch
3 5/8
15/64 In. x 3-7/8 In. Cobalt Drill Bit
Model number CO2142
Pack quantity
1
Details
Diameter (D) Inch
15/64
Working length (L1) Inch
2 5/8
Total length (L2) Inch
3 7/8
17/64 In. x 4-1/8 In. Cobalt Drill Bit
Model number CO2144
Pack quantity
1
Details
Diameter (D) Inch
17/64
Working length (L1) Inch
2 7/8
Total length (L2) Inch
4 1/8
9/32 In. x 4-1/4 In. Cobalt Drill Bit
Model number CO2145
Pack quantity
1
Details
Diameter (D) Inch
9/32
Working length (L1) Inch
3
Total length (L2) Inch
4 1/4
19/64 In. x 4-3/8 In. Cobalt Drill Bit
Model number CO2146
Pack quantity
1
Details
Diameter (D) Inch
19/64
Working length (L1) Inch
3
Total length (L2) Inch
4 3/8
5/16 In. x 4-1/2 In. Cobalt Drill Bit
Model number CO2147
Pack quantity
1
Details
Diameter (D) Inch
5/16
Working length (L1) Inch
3 3/16
Total length (L2) Inch
4 1/2
21/64 In. x 4-5/8 In. Cobalt Drill Bit
Model number CO2148
Pack quantity
1
Details
Diameter (D) Inch
21/64
Working length (L1) Inch
3 5/16
Total length (L2) Inch
4 5/8
11/32 In. x 4-3/4 In. Cobalt Drill Bit
Model number CO2149
Pack quantity
1
Details
Diameter (D) Inch
11/32
Working length (L1) Inch
3
Total length (L2) Inch
4 3/4
23/64 In. x 4-7/8 In. Cobalt Drill Bit
Model number CO2150
Pack quantity
1
Details
Diameter (D) Inch
23/64
Working length (L1) Inch
3 1/2
Total length (L2) Inch
4 7/8
3/8 In. x 5 In. Cobalt Drill Bit
Model number CO2151
Pack quantity
1
Details
Diameter (D) Inch
3/8
Working length (L1) Inch
3 5/8
Total length (L2) Inch
5
25/64 In. x 5-1/8 In. Cobalt Drill Bit
Model number CO2152
Pack quantity
1
Details
Diameter (D) Inch
25/64
Working length (L1) Inch
3 11/32
Total length (L2) Inch
5 1/8
13/32 In. x 5-1/4 In. Cobalt Drill Bit
Model number CO2153
Pack quantity
1
Details
Diameter (D) Inch
13/32
Working length (L1) Inch
3 11/32
Total length (L2) Inch
5 1/4
27/64 In. x 5-3/8 In. Cobalt Drill Bit
Model number CO2154
Pack quantity
1
Details
Diameter (D) Inch
27/64
Working length (L1) Inch
15/32
Total length (L2) Inch
5 3/8
7/16 In. x 5-1/2 In. Cobalt Drill Bit
Model number CO2155
Pack quantity
1
Details
Diameter (D) Inch
7/16
Working length (L1) Inch
3 1/2
Total length (L2) Inch
5 1/2
15/32 In. x 5-3/4 In. Cobalt Drill Bit
Model number CO2157
Pack quantity
1
Details
Diameter (D) Inch
15/32
Working length (L1) Inch
3 3/4
Total length (L2) Inch
5 3/4
31/64 In. x 5-7/8 In. Cobalt Drill Bit
Model number CO2158
Pack quantity
1
Details
Diameter (D) Inch
31/64
Working length (L1) Inch
3 7/8
Total length (L2) Inch
5 7/8
1/2 In. x 6 In. Cobalt Drill Bit
Model number CO2159
Pack quantity
1
Details
Diameter (D) Inch
1/2
Working length (L1) Inch
4
Total length (L2) Inch
6
12 pieces 1/64 In. x 3/4 In. Cobalt Drill Bit
Model number CO4128
Pack quantity
12
Details
Diameter (D) Inch
1/64
Working length (L1) Inch
3/16
Total length (L2) Inch
3/4
12 pieces 3/64 In. x 1-3/4 In. Cobalt Drill Bit
Model number CO4130
Pack quantity
12
Details
Diameter (D) Inch
3/64
Working length (L1) Inch
3/4
Total length (L2) Inch
1 3/4
12 pieces 1/16 In. x 1-7/8 In. Cobalt Drill Bit
Model number CO4131
Pack quantity
12
Details
Diameter (D) Inch
1/16
Working length (L1) Inch
7/8
Total length (L2) Inch
1 7/8
12 pieces 5/64 In. x 2 In. Cobalt Drill Bit
Model number CO4132
Pack quantity
12
Details
Diameter (D) Inch
5/64
Working length (L1) Inch
1
Total length (L2) Inch
2
12 pieces 3/32 In. x 2-1/4 In. Cobalt Drill Bit
Model number CO4133
Pack quantity
12
Details
Diameter (D) Inch
3/32
Working length (L1) Inch
1 1/4
Total length (L2) Inch
2 1/4
12 pieces 7/64 In. x 2-5/8 In. Cobalt Drill Bit
Model number CO4134
Pack quantity
12
Details
Diameter (D) Inch
7/64
Working length (L1) Inch
1 1/2
Total length (L2) Inch
2 5/8
12 pieces 1/8 In. x 2-3/4 In. Cobalt Drill Bit
Model number CO4135
Pack quantity
12
Details
Diameter (D) Inch
1/8
Working length (L1) Inch
1 5/8
Total length (L2) Inch
2 3/4
12 pieces 9/64 In. x 2-7/8 In. Cobalt Drill Bit
Model number CO4136
Pack quantity
12
Details
Diameter (D) Inch
9/64
Working length (L1) Inch
1 3/4
Total length (L2) Inch
2 7/8
12 pieces 5/32 In. x 3-1/8 In. Cobalt Drill Bit
Model number CO4137
Pack quantity
12
Details
Diameter (D) Inch
5/32
Working length (L1) Inch
2
Total length (L2) Inch
3 1/8
12 pieces 11/64 In. x 3-1/4 In. Cobalt Drill Bit
Model number CO4138
Pack quantity
12
Details
Diameter (D) Inch
11/64
Working length (L1) Inch
2 1/8
Total length (L2) Inch
3 1/4
12 pieces 13/64 In. x 3-5/8 In. Cobalt Drill Bit
Model number CO4140
Pack quantity
12
Details
Diameter (D) Inch
13/64
Working length (L1) Inch
2 1/2
Total length (L2) Inch
3 5/8
12 pieces 7/32 In. x 3-3/4 In. Cobalt Drill Bit
Model number CO4141
Pack quantity
12
Details
Diameter (D) Inch
7/32
Working length (L1) Inch
2
Total length (L2) Inch
3 3/4
12 pieces 15/64 In. x 3-7/8 In. Cobalt Drill Bit
Model number CO4142
Pack quantity
12
Details
Diameter (D) Inch
15/64
Working length (L1) Inch
2 3/4
Total length (L2) Inch
3 7/8
12 pieces 1/4 In. x 4 In. Cobalt Drill Bit
Model number CO4143
Pack quantity
12
Details
Diameter (D) Inch
1/4
Working length (L1) Inch
2 3/4
Total length (L2) Inch
4
12 pieces 17/64 In. x 4-1/8 In. Cobalt Drill Bit
Model number CO4144
Pack quantity
6
Details
Diameter (D) Inch
17/64
Working length (L1) Inch
2 7/8
Total length (L2) Inch
4 1/8
12 pieces 9/32 In. x 4-1/4 In. Cobalt Drill Bit
Model number CO4145
Pack quantity
6
Details
Diameter (D) Inch
9/32
Working length (L1) Inch
2 61/64
Total length (L2) Inch
4 1/4
12 pieces 19/64 In. x 4-3/8 In. Cobalt Drill Bit
Model number CO4146
Pack quantity
6
Details
Diameter (D) Inch
19/64
Working length (L1) Inch
3
Total length (L2) Inch
4 3/8
12 pieces 5/16 In. x 4-1/2 In. Cobalt Drill Bit
Model number CO4147
Pack quantity
6
Details
Diameter (D) Inch
5/16
Working length (L1) Inch
3 3/16
Total length (L2) Inch
4 1/2
12 pieces 21/64 In. x 4-5/8 In. Cobalt Drill Bit
Model number CO4148
Pack quantity
6
Details
Diameter (D) Inch
21/64
Working length (L1) Inch
3 5/16
Total length (L2) Inch
4 5/8
12 pieces 11/32 In. x 4-3/4 In. Cobalt Drill Bit
Model number CO4149
Pack quantity
6
Details
Diameter (D) Inch
11/32
Working length (L1) Inch
3 15/32
Total length (L2) Inch
4 3/4
12 pieces 23/64 In. x 4-7/8 In. Cobalt Drill Bit
Model number CO4150
Pack quantity
6
Details
Diameter (D) Inch
23/64
Working length (L1) Inch
3 1/2
Total length (L2) Inch
4 7/8
12 pieces 25/64 In. x 5-1/8 In. Cobalt Drill Bit
Model number CO4152
Pack quantity
6
Details
Diameter (D) Inch
25/64
Working length (L1) Inch
3 1/4
Total length (L2) Inch
5 1/8
12 pieces 27/64 In. x 5-3/8 In. Cobalt Drill Bit
Model number CO4154
Pack quantity
6
Details
Diameter (D) Inch
27/64
Working length (L1) Inch
3 15/32
Total length (L2) Inch
5 3/8
12 pieces 7/16 In. x 5-1/2 In. Cobalt Drill Bit
Model number CO4155
Pack quantity
6
Details
Diameter (D) Inch
7/16
Working length (L1) Inch
3 1/2
Total length (L2) Inch
5 1/2
12 pieces 29/64 In. x 5-5/8 In. Cobalt Drill Bit
Model number CO4156
Pack quantity
6
Details
Diameter (D) Inch
29/64
Working length (L1) Inch
3 1/2
Total length (L2) Inch
5 5/8
12 pieces 15/32 In. x 5-3/4 In. Cobalt Drill Bit
Model number CO4157
Pack quantity
6
Details
Diameter (D) Inch
15/32
Working length (L1) Inch
3 3/4
Total length (L2) Inch
5 3/4
12 pieces 31/64 In. x 5-7/8 In. Cobalt Drill Bit
Model number CO4158
Pack quantity
6
Details
Diameter (D) Inch
31/64
Working length (L1) Inch
3 7/8
Total length (L2) Inch
5 7/8
6 pieces 1/2 In. x 6 In. Cobalt Drill Bit
Model number CO4159
Pack quantity
6
Details
Diameter (D) Inch
1/2
Working length (L1) Inch
4
Total length (L2) Inch
6