There is a product made by vise grips called Bolt Out. Sears also makes it. Comes in different sizes and it will take a rounded nut off with ease. I have had to use it several times and it saves a lot of frustration.

 

http://www.sears.com/sr/javasr/produ...seBVCookie=Yes

thatsthe nut/bolt out set. they also sell a set of 3 of those specificaly for use on lug nuts and wheel locks. (i own the 3 peice set and it works wonders)

 

I hate sears tools. They are great tools, but they charge so much. $60 for a 10 piece kit...

 

Good luck finding a quality tool for less than craftsman.

I would like to note with those nut/bolt out sets, do not use an impact on them unless they are specifically labeled as impact grade as in the above link. I have a set of normal grade bolt/nut outs and would never think of putting an impact on them, but they are worth their weight in gold when it is necessary to use them!

 

I hate to say it, but those no name brand wrenches and such at walmart have never served me wrong lol.

 

you think craftsman is pricey?

http://www.snap-on.com/

but nothing feels quite like a snap on screw driver or socket wrench in your hand...