Suitable for removing the cap from the oil filter housing on Ford, Citroen, Peugeot 2.0D/2.2D HDi/TDCi diesel engines (DW10C, DW12C) & Jaguar XF 2.2D from 2012 onwards. This tool allows access to the hard-to-reach 27mm hex located on the filter cap. Use with a 1/2" Sq drive wrench.