C
Concrete guy
Could you not make both sizes and sell them as a set? I'd buy them.
Fundamentally we can make it in any size, or profile for that matter.
What I'm trying to achieve though is low cost solutions, so sets of things start to get a bit pricey.
Normally with profiling tools, you need one tool per size/shape. But an external mitre tool is the odd exception to that. I could make it 25mm deep and it could still be used on 10mm tiles as the excess profile would simply protrude beyond the unseen bottom edge of the tile. Does that make sense?