- Joined
- Dec 27, 2013
- Messages
- 10,013
Might just be the camera playing tricks, but it appears to have put a big recurve on the heal-end of the blade, which will make it useless for rocking.
I see that recurve too. Maybe the knife started out like that a little and the machine exacerbated it?
I see what you mean. Here's an "after" photo:

I think that little recurve (more of a bump at the very heel) was there slightly at first, and was increased because the Ace employee should have started the green "start point" laser a little further back. It was placed slightly in front of the heel, so that's where the machine started grinding, leaving a proud spot right at the heel.
I'll remove the heel bulge easily. When placing it on a flat surface, the gap under the recurved part is way smaller than it looks like it would be in the photos. Like just enough to slide the corner of a sheet of printer paper under there.
I'm surprised to see it uses flap wheels instead of grind stones
It started with some sort of diamond-coated stone wheels, then switch to flappers for the last pass.