Review on π© Bosch CO2146 4 3 Cobalt Drill: Durable and Efficient Drilling Tool by Will Guliford
Disappointing Performance
According to my experience, this industrial drill bit failed to perform as expected. The cobalt coating wore off quickly and the bit became dull after minimal use. The only positive aspect was the initial sharpness.
Pros
- Initial sharpness
Cons
- Wear off quickly, became dull
