I purchased this mobile base because I wanted the flexibility to roll my mitre saw around, which is on a large stand.  I needed to customize the mobile base to the size of the stand.  All my power tools, and I have a lot of them are on wheels that are made for the specific tool.  I had a problem with the mitre saw because of it's odd size.  There was no custom fitted base, that I could find.  It worked out well, but one caution, the wood I used is a bit too flexible and the saw does move a little when rolling it.  I never have an issue while using the saw, but it does bounce a small amount while rolling.  Nothing that would cause a problem.  You can find pictures and further description of the project at ediblefrog.com/topics/frogblogger/delta_50-345_universal_mobile_base