If you have a Unifence, and take WoodSmith magazine, you can see the tip in the current issue. It is a repeatable stop for my Unifence. It works great when I am doing final trimming on rails and stiles. Easy to make too. I use it on the LEFT side of the fence. Set it for 2", need to cut something else it's ok to move the fence , then just go back to the stop and cut some more perfectly the same as the others. Sorry I cannot do pics right now. I promised them I would not use them for a while.

Rick Potter