Yes, I'm asking about the cutting oil for the extractor, not the Dremel. I thought an self-impact style screw driver (one you bang on the end with a hammer to break loose the screw) might work but the fuel filter/fuel pumps are in mounts that aren't very solid/sturdy. I can't really bang on the screw head too hard; I'm concerned that I could break the mount itself and end up with a massive fuel leak. If the Dremel idea (cutting a flat slot so a flat screw driver will fit) doesn't work and the extractor fails for whatever reason, I'm planning on cutting the head off with a Dremel and grabbing the bolt with Vice grips and unscrew it that way.