Originally Posted by Tadams
I've done the same thing with my Lazer. Take it to an automotive shop and ask them if they will take it off for you. Unless you've got a snap-on, matco, or other professional gun you won't get it off. They might even have a 3/4" gun that will take it off very easy. If you try and wedge the blade and use a breaker bar you will probably bend the blade- $15 bucks down the drain. The shop might charge $5 bucks to zip it off. Money and time well spent if you ask me.
That's what I do, for some reason auto repair guys seem to enjoy trying to get mower blades off... I normally give them $5 but sometimes even they refuse the money. A lot faster then messing with it yourself quite often.