I am using mine on a non Ridgid table saw. As long as the table saw has a steel top it will work. The feather board uses magnets to hold it in place. It works great for me on a non Ridgid table saw.
About 7/8 inch and holding strength don't know
The function and size are the same, but the performance is not. The magnets in the yellow Magswitch featherboard are 2 X's bigger than the magnets in the Ridgid version. The Ridgid version does not stay in place and is not recommended.
Hi William, There have not been any changes to this model of the feather board. Thanks for your interest. Greg
No it does not. What you see in the image is what you get. The magnets will not work on aluminum.