You don't need a removable wheel to sharpen a pizza cutter on a stone. That's actually pretty clear from the video showing the sharpening of the removed wheel - the fact they the wheel is not in the handle isn't material to the sharpening action.

Pizza cutters wear out by deformation of the hole in the middle of the wheel (in my experience). I have thought of hacking one to fit bearings, just for the joy of having something that is properly engineered.

I just moved from a cutter to a pizza axe. Life is a lot better now. Now more cleaning of the turny bit, no more cheese getting caught (if some philistine left the pizza to long but not long enough), less movements and easier straight lines.

Is this hacker news? Looks like a consumer ads compilation.

When I worked as a pizza delivery guy (favorite casual job I had during uni) we only used those big pizza rocker things, which I think are better than these wheels. Easier to clean too.

Ugh, just use kitchen shears.