I am trying to replicate the following drawing:

The problem I am encountering in solidworks is creating the radius around each of the four corners of the main body of the part. I tried using a variable fillet and set the initial radius to 0 and the final radius to .03, but it wouldn't accept a 0 radius fillet. I have also tried splitting the part, but didn't have much luck with that either. What I would like to be able to do is choose an edge to build the radius on and then set the length of the radius on that edge (instead of the entire length). are there any options like that?