For rotary drills/drivers
Diameter (D) Inch 30 options
Total length (L2) Inch 30 options
Choose a pack size 3 options
Fits tools of most brands
Cylindrical shank compatible with three-jaw drill chucks.
The Cobalt Drill Bit provides long-lasting performance when drilling stainless steel. This extended lifetime results from a cobalt alloy content of 5% and fully ground HSS (high-speed steel), which provides excellent surface quality, wear resistance and heat protection. Equipped with two cutters and two flutes, chips are removed quickly to make the bit last even longer. This drill bit works with alloyed and non-alloyed steel, stainless steel, cast iron, cast steel and acid- and heat-resistant steels.
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.
Available product options: 53
Part number | Diameter (D) Inch | Working length (L1) Inch | Total length (L2) Inch | Pack quantity | ||
---|---|---|---|---|---|---|
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
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 |
Model number CO2132 | |
---|---|
Pack quantity | 1 |
|
Details | |
---|---|
Diameter (D) Inch | 5/64 |
Working length (L1) Inch | - |
Total length (L2) Inch | 2 |
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 |
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 |
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 |
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 |
Model number CO2137 | |
---|---|
Pack quantity | 1 |
|
Details | |
---|---|
Diameter (D) Inch | 5/32 |
Working length (L1) Inch | 2 |
Total length (L2) Inch | 3 1/8 |
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 |
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 |
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 |
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 |
Model number CO2145 | |
---|---|
Pack quantity | 1 |
|
Details | |
---|---|
Diameter (D) Inch | 9/32 |
Working length (L1) Inch | 3 |
Total length (L2) Inch | 4 1/4 |
Model number CO2146 | |
---|---|
Pack quantity | 1 |
|
Details | |
---|---|
Diameter (D) Inch | 19/64 |
Working length (L1) Inch | 3 |
Total length (L2) Inch | 4 3/8 |
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 |
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 |
Model number CO2149 | |
---|---|
Pack quantity | 1 |
|
Details | |
---|---|
Diameter (D) Inch | 11/32 |
Working length (L1) Inch | 3 |
Total length (L2) Inch | 4 3/4 |
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 |
Model number CO2151 | |
---|---|
Pack quantity | 1 |
|
Details | |
---|---|
Diameter (D) Inch | 3/8 |
Working length (L1) Inch | 3 5/8 |
Total length (L2) Inch | 5 |
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 |
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 |
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 |
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 |
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 |
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 |
Model number CO2159 | |
---|---|
Pack quantity | 1 |
|
Details | |
---|---|
Diameter (D) Inch | 1/2 |
Working length (L1) Inch | 4 |
Total length (L2) Inch | 6 |
Model number CO4128 | |
---|---|
Pack quantity | 12 |
|
Details | |
---|---|
Diameter (D) Inch | 1/64 |
Working length (L1) Inch | 3/16 |
Total length (L2) Inch | 3/4 |
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 |
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 |
Model number CO4132 | |
---|---|
Pack quantity | 12 |
|
Details | |
---|---|
Diameter (D) Inch | 5/64 |
Working length (L1) Inch | 1 |
Total length (L2) Inch | 2 |
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 |
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 |
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 |
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 |
Model number CO4137 | |
---|---|
Pack quantity | 12 |
|
Details | |
---|---|
Diameter (D) Inch | 5/32 |
Working length (L1) Inch | 2 |
Total length (L2) Inch | 3 1/8 |
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 |
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 |
Model number CO4141 | |
---|---|
Pack quantity | 12 |
|
Details | |
---|---|
Diameter (D) Inch | 7/32 |
Working length (L1) Inch | 2 |
Total length (L2) Inch | 3 3/4 |
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 |
Model number CO4143 | |
---|---|
Pack quantity | 12 |
|
Details | |
---|---|
Diameter (D) Inch | 1/4 |
Working length (L1) Inch | 2 3/4 |
Total length (L2) Inch | 4 |
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 |
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 |
Model number CO4146 | |
---|---|
Pack quantity | 6 |
|
Details | |
---|---|
Diameter (D) Inch | 19/64 |
Working length (L1) Inch | 3 |
Total length (L2) Inch | 4 3/8 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
Model number CO4159 | |
---|---|
Pack quantity | 6 |
|
Details | |
---|---|
Diameter (D) Inch | 1/2 |
Working length (L1) Inch | 4 |
Total length (L2) Inch | 6 |
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