Bosch 5/16-in x 4-1/2-in Jobber Drill Bit, Cobalt, Bulk
Bosch CO4147
SKU BPT-CO4147
Bosch's 5/16-in x 4-1/2-in jobber drill bit is made of surface hardened cobalt that allows it to penetrate tough, abrasive materials. It also provides 4x longer life than standard bits. Explore more at HomElectrical now!
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Bosch CO4147 Description
- Bulk Pack.
- Diameter: 5/16 Inch.
- Overall Length: 4-1/2 Inch.
- Shank: 5/16 Inch.
- Withstands high-temperature applications for extended periods of time (up to 1,100 F).
- Rigid, thick web design adds stability to bit in tough applications.
- Surface hardened to penetrate tough abrasive materials.
- Best used for drilling into light-gauge metal, high-carbon steel, aluminum and ally steel, cast iron, stainless steel and titanium.
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$9.39Each
Sold by the Case of 6 for only $56.34
Ships between 08/03/2026 - 08/07/2026
Return180-day Return Policy
Product Specifications
| Part Number | CO4147 |
| Weight | 0.07-lb |
| UPC | 000346333305 |
Manufacturer Description
5/16-in COBALT SP JOBBER DRILL BIT (BULK)
Important PROP 65 InformationWarning: This product can expose you to chemicals, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov. to CA residents.
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