This is a 5/4" masonry drill bit. I used this beast today to punch a hole through an 8" thick concrete block fire pit for the gas valve to go in.
It's about time to go back to work I suppose.
I remember when the wide mouth was a novelty. It was this marketing thing they stuck on the can. Then they vented it so it could dump down your gullet more quickly. Now it's just standard. The vented, wide mouth, sugar dumper.