just use a good quality 17mm hex.

I've found that a 17mm isn't as good as the proper socket. On my 07 W221 the little chrome caps started coming off when I used the regular socket.

Yep, you want a spline drive 17mm, the caps are bulged slightly and a regular 17 will deform them and then eventually ruin them, not to mention be a PITA to work with as it sticks on every lug and requires hammering on them once they get a little misshapen.