I don't need no stinkin filer wrench!!
Best tool in the shop right after duct tape is a 24 inch slip joint pliars. Wow! That mother can get almost anything off or keep it from turning. I went out and bought another one to keep in the trailer too.
I also used it to keep the fan pully from turning when getting the blasted fan hub nut loose to do the KDP. I would not be without 2 large slip joint pliars. Channel locks, IMHO, are the best but any will do. They are great oil filter wrenches but watch that pesky alternater lug. It will wake you right up if you hit it.
-Paul R. Haller-:--) :--)