I saw another product in Motorcycle Consumer magazine (I reviewed Plast Aid previously) that looked interesting so I ordered a couple of bottles of Screw Grab. A dab on a screwdriver or screw will increase the friction 800% allowing you to remove those stubborn screws. You can use it on all types of screws and even nuts and bolts. So far I'm pretty impressed. I am often slowed down on a project just because of a few of those pesky screws just won't come out. So far I've not been able to defeat the extra friction this stuff provides. Even works on hacked-up screw heads. I'll report back when I get more experience.