Hello,
Unfortunately the dimensions of my tools is not going to help. I have the EWT Medium tools that I like very much. When I started making my own tools I used them as my base pattern, so I made a crude dimensional sketch (attached). However, I know that the handle profile (and the tool itself I think) are smaller than the standard Full, Medium, and Micro versions of the EWT tools.
When I had questions I used the "Contact Us" link on the easywoodtools.com website and they were very prompt with a reply. Perhaps they would provide you with the critical dimensions you need for your project.
Good Luck,
Dave