Description
Description
Bosch CO21B Description
Bosch Cobalt M42 Metal Drill Bits are engineered with upgraded M42 alloy containing 8% cobalt for up to 10X life versus standard bits. These jobber-length bits are built for high-heat applications, with a thick web-helix design for fast material removal and added stability. Split points on 1/8 in. and larger bits help start holes without skating, while three-flat shanks on 3/16 in. and larger bits improve grip for drilling stainless steel, cast iron, titanium, aluminum, and other hard or abrasive metals.
Bosch CO21B Includes
- (1) Cobalt M42 Twist Drill Bit Set
- (1) Storage Case
- (21) Cobalt M42 twist drill bits in assorted sizes from 1/16 in. to 1/2 in.
Bosch CO21B Features
- Upgraded M42 cobalt jobber-length bits are designed for durability, high heat resistance, and a hardened surface for drilling stainless steel, cast iron, titanium, light-gauge metal, and aluminum
- Enhanced M42 alloy contains 8% cobalt and delivers up to 10X life versus standard bits
- High-heat-resistant bits withstand demanding high-temperature applications
- Thick web-helix design provides added stability in tough applications
- Surface-hardened tip penetrates tough abrasive materials
- Split points on 1/8 in. and larger bits help start holes without skating and reduce the need for a center punch
- Three-flat shank on 3/16 in. and larger bits improves chuck grip and reduces slippage
Bosch CO21B Specifications
| Bit Material | Cobalt |
| Bit Type | Twist |
| Case Included | Yes |
| Pieces | 21 |
| Cobalt Content | 8% |
| Length Type | Jobber |
| Split Point | Bits 1/8 in. and larger |
| Shank Style | Three-flat shank on bits 3/16 in. and larger |
| Applications | Stainless steel, cast iron, titanium, light-gauge metal, aluminum |
WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer and birth defects or other reproductive harm. www.p65warnings.ca.gov
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