This Capri Tools Oil Drain Plug Wrench with 17 mm box end and 14 mm hex driver makes it easy to work on drain plugs on most BMW and MercedesBenz vehicles using 17 mm oil drain plug and 14 mm transfer casedifferential drain plugs The 17 mm box end services the oil drain plug and the 14 mm hex driver services the transfer case and differential drain plugs It has a low profile design with an offset so you can work on drain plugs where sockets can’t reach Compatible with most BMW and MercedesBenz vehicles