This morning on This Old House, Tom was using a clampless straight edge
to rip and cut dadoes into plywood using handheld tools. I did not catch
the episode number, but it is one of the Concord cottage episodes. Of
course, because the show airs on PBS, they did not say who the
manufacturer is. I wonder if any of you know who makes this straight
edge? It looked to be made of extruded aluminum, and had three or four
long rubber gaskets on the bottom that keep it from sliding when there's
pressure on it, so it did not need to be clamped to the stock being cut.
The tool rode on a protruding rail, so it didn't need to be pressed
against the edge of the straight edge. It appeared that the router and
circular saw were fitted with a special base to ride on the rail. I can
neither afford or house a table saw, large router table, or jointer
right now, and it seems like this tool would offer a reasonable
compromise. I am especially impressed by the rail feature that keeps the
tool aligned and riding straight; the clampless feature sounds
convenient, but I'm not hell-bent on having it if there's another (more
affordable) tool that is comparable. Any information would be
appreciated. Thanks!

-AD