When I wrote this "ible" the original intent was to stick to Phillips look-a-likes. It grew to this. Due to input and interest shown by readers, I'm ...
Step 21: Recex® Drive
The Idea of the Robertson/Phillips (Recex) combo drive was invented by Robertson Inc. in Milton Ontario and Recex® is the only combo drive Robertson Inc. endorses. The patented Recex Combo Recess drive insures you always have the correct driver bit to install or adjust your finished wood working project.
Information by Brian J. Cooley, Robertson Inc., Tools Division Product Line Manager for North America