Originally Posted by
Sheldon Brown
When I was a kid, I used to use a hammer and an old screwdriver (I had a screwdriver that had metal running all the way through the handle.) Worked fine, but did tend to gunge up the notch in the lockring a bit.
Sheldon "Ve Haff Ways..." Brown
I as well have used many a flathead screw driver and bludgeoning object for lockring removal. If you have a big screwdriver with a fatty plastic handle on it flip it over and use the handle as the force applicator. works beautifully.