..since this thing is a site tool, it's actually got a steel wear strip on the fence (which makes the picture look funny).
If I'm off base about what you mean by the fence (I'm thinking just like any other fence on a marking gauge, right?), let me know..
The odd thing about this gauge is that it uses thin disposable blades, so there's a slug that goes in with the blade so that you can put a lot of tension on the end screw. That makes it able to take any old thin junk.