very good extension

and very easy to install. you could make one of your own, but it's really not cost effective.

A minor design flaw but well worth it.

You need this left side support for your Bosch 4000-9 Jobsite Table Saw. Installation was very easy except I spent a lot of time trying to figure out what I did wrong. I found out that the right side extension release handle, that came with the saw, wouldn't let the left extension sliding rod go fully into the closed position unless the right side extension handle is pulled up an inch or so. I like the left extension so I can live with the handle sticking out an inch and the lock still works. I can't believe Bosch let that design flaw go. I guess they knew we would still like the extension.

Nice extension but one design flaw

This is nice extension for large sheets of wood to cut, but there is a design flaw. I have the Bosch 4000-9 where the right side of the table extends out. ^M
^M
As a previous poster noted, the arms of this extension hit the lever for the right side table extension, so you can adjust the lever all the way down, therefore I downgraded it a star.