saab 93 2.2 diesel 2001 drain plug?

would any body know the correct size of the oil drain plug on a saab 93 2.2 diesel i want to purchase the correct tool to change oil myself thanks

any parts store can get you right tools for working on your can really easy just say what your wanting just so you know better to buy a set than one at a time but they can look up what size drain plug is and get you a tool for it also need a filter wrench and drain catch pan