Furnished content.
(from Lumberjocks.com)
My tool holder previous to this was hung behind my lathe so I had to reach over the lathe to get or return a tool. It dawned on me that this was an injury waiting to happen. 
Took an end section from one of my first furniture projects from the 70's added a base with wheels repurposed from another item, some top braces, a hardboard cover. Then built the top cabinet from old paneling and 2by4's. Cut the old center drawer from the desk down to make 2 small sliding boxes (photo 5) inside the desk section drawers. Only expenses were the 4 hinges and hasp.