As a result of my tests I determined that this drill bit is incredibly dull and struggled to make even the slightest dent IN the material I was working with. The only positive aspect was its durability, as it did not break or chip despite the excessive force I was applying. However, the lackluster performance outweighs any longevity. Overall, I cannot recommend this product..
Pros
Durable and long-lasting construction with replaceable parts
This is a junk bit. The end is blunt. It takes quite a bit of pressure to start with. Hit a 6p nail and the bat is ruined. Probably the worst beat I've ever used. I definitely wouldn't recommend it to anyone. 50 dollars in the toilet.