I've just finished sanding an exterior cedar wall around 30x20', but I want to get the last paint off the 'V' at the tongue-in-groove joints, where the paint is kind of loose. I find it almost impossible to use the same DeWalt disk sander that I used for the flat part, since I have major control issues with that tool.
What can I use that will get into the 'V' - the only thing I saw in the big box shops was a flapped sander disk that goes on an angle grinder, around 1/2" thick and pointed into a V, but I dunno how much control I'll have with that either, grinders are not easy to control.
Thanks for any hints.
Dean