It is often necessary to drill the lug holes of Mercedes wheels to a larger diameter to allow the Vanagon's 14mm wheel hardware to pass through. 37/64" is the recommended size to drill those lug hole out to and since that size can be somewhat difficult to find, we are offering a low cost option for those who need it.
These High Speed Steel 37/64" drill bits will allow you to drill your own lug holes at home with a hand held electric drill. They feature a 1/2" shank, so they will fit most drills.