Remote connection to DB instance from fresh formatted system?
I checked this out and the latest available standalone for SQL Server Management Studio is a 2008 version here. 

Thanks to @AaronBertand, the process of obtaining the SQL Server Management Studio 2014 involves clicking the download button for the full SQL Server Express 2014 and then you will be offered a choice of only downloading the Studio (see here - with thanks again to Aaron Bertrand). Detailled instructions available here.

If you just want a command line client, then check out this post.