Good Advice, but I recommend the Knipex Pliers Wrench. Only because they are an extremely useful tool in general and instead of a specialized tool you get a life changing hand tool. The jaws stay parallel throughout the range of motion, they offer compound leverage. They basically replace socket wrenches, crescent wrenches, water pump pliers, monkey wrenches for 90% of what I do. They are outstanding and putting a roll pin in is easy as can be, faster without the screwing and you don't have a tool that has a single use. You wouldn't think there would be much new in the way of handtools but these are the cat's pajamas.

I know I sound like a shill, but can't help singing their praises whenever I have the chance. Plus I get a kick out of the top amazon review (not from me).

Tell your trusty thumb-detecting-nut-rounder to visit your grandpa in hell, and drop a chunk of your rent on these in a 10" and a 7".

You'll be the envy of your job site. Your ex girlfriend from high school will call you and tell you she messed up. Your mother might finally quit her drinking. Well, probably not, but she'll be mighty impressed with how quickly you fixed that plumbing under her sink.

Anyway, this is a beautiful and excessively useful wrench that has launched me into a lifelong relationship with Knipex. If I ever lost this tool, I'd replace it quicker than my tears would dry. It's that perfect.