I've sometimes had to loosen the screw and with it sticking out tap with non mar hammer. Sometimes the sleeves get stuck in the steel.Bonus question: any tips and tricks for removing the scales on a CPK? I was able to get the shorter "male" screws off my FK2 with some elbow grease, but the longer tubes are stuck. I don't * think * the scales are epoxied on (not sure as the knife is 2nd hand) because the screws do spin, but I can't seem to pull them out.