Chosen Solution

Hi all! I’m trying to identify the type of screw used in one accessory for this food processor. The necessary bit is no included in my 54 bit set. What I found online so far is two different names: “spanner” and “h drive”. iFixit sells three different sizes of spanner bits and in case that is the correct type, I’m not sure what size to order (currently in stock I see sizes 4, 6 and 8). Any help is appreciated, thanks in advance!

I would order all three spanner bits. Spanner is the correct driver for this screw.