socket sizes for oil drain plug and cover bolts

KWZ

First oil change ... don't have a full socket set ... what is the socket size for the 12 mm engine oil drain plug and the four 10mm bolts for the under cover flap? The service manual mentions that the Z uses both "previous standard" and "new standard" bolt sizes which have different widths across the flats. It looks like the socket for the drain plug is either 17 mm or 18 mm, and for the cover bolts, its either 14 mm or 16 mm.

Thanks.