In addition to removing rust, it can also be used to dissolve calcium and lime deposits. During my last experience using CLR, I used it to remove the rust that had formed on a few of my sockets.

CLR Calcium, Lime, And Rust Remover If you've done any research into popular rust removal products, you've most likely come across mentions of CLR Calcium, Lime, and Rust Remover. As a mainstream ...