This strut nut socket is an essential service tool for Mercedes C Class models manufactured between 2000 & 2008 and also Mercedes Benz models manufactured between 2003 & 2008. Manufactured for the easy doing/undoing of front suspension strut top nuts (shock absorber piston rod top nuts) fitted to these models, this simple to use tool makes a potentially tricky task a doddle. Simply use with a 7mm hex key to hold the strut in place while you get to work with the strut nut.