Who ever owned my rv before must have used epoxy or that red lock tite on the 4 screws that hold the a/c cover on because I used a big phillips head screw driver and cant budge them. I mean I have nev...
If you get a Snapon screwdriver it has a shank which will take a 3/8 in box end and you can use it and pressure on the driver to remove the screw. You can also drill out the screw with a bit large enough to fit inside the OD of the screw and use an ez out to back out the screw. That is an approved method used by aircraft mechanics and works well.