I cut another 100 bf of so with that blade. As I was cutting the last log before swapping it out for a new blade:





That was the end of that blade, for sure. I put on a new blade, made about two cuts in the same log, after removing the screw, and:




Not good. Surprisingly, the blade again looked pretty good after I picked off the bits of nail stuck to the teeth. I rolled the log and made another cut. Oh no:




Well this isn't going well. But again, the blade wasn't trashed. Until:




That was the head of a pretty large nail, and it bent over a whole bunch of teeth.

I don't know where the guy got these logs, but he might decide to look elsewhere after he pays for the blades that are being ruined.

John