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🛠️ bosch co4143 cobalt jobber bits - 12 pack logo

🛠️ Bosch CO4143 Cobalt Jobber Bits - 12 Pack Review

3

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Very good

Revainrating 4 out of 5  
Rating 
4.0
🪚 Industrial Drill Bits, 🔪 Cutting Tools

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Description of 🛠️ Bosch CO4143 Cobalt Jobber Bits - 12 Pack

Best heat resistance up to 1100 Degree Fahrenheit. Ideal for drilling for extended periods of time in the most abrasive materials. 135 Degree split point starts on contact.

Reviews

Global ratings 3
  • 5
    2
  • 4
    0
  • 3
    0
  • 2
    0
  • 1
    1

Type of review

Revainrating 5 out of 5

High-Quality Cobalt Bits from a Trusted Brand!

After trying this product for some time, I'm highly impressed with Bosch's industrial cobalt drill bits. They have a tough construction that handles different materials with ease, making them perfect for all projects. I also appreciated the 12-pack packaging, which made it convenient to have bits on hand every time I needed them. While a bit on the expensive side, they deliver quality results, which makes it worth it. These bits definitely belong in the top tier of cutting tools in the…

Pros
  • Durable cobalt construction for long-lasting use
Cons
  • Higher price point compared to standard drill bits

Revainrating 1 out of 5

Stop. Not as advertised

This product is listed as six drill bits. This is only one. Do not buy this product. Do not buy this product, it is not what is listed.

Pros
  • 135 degree split point starts at contact
Cons
  • Something else

Revainrating 5 out of 5

Perfect! - Drill

This is an excellent product for mild steel drilling and other applications. I haven't tried harder materials yet. As a retired IA teacher, I have tested many 3/16" drill bits. I find them ideal for drilling through holes for drywall screws.

Pros
  • Ideal for continuous drilling in the most abrasive materials
Cons
  • Wrinkled