Hi CEZ1869,
Only the locking wheel nut has a cover, this is the one with an indent on the face of it. The removal tool is quite cheap to relace from Ebay or LR dealer. The plastic tool just pushes on to the locking nut cover and a smart pull removes the cover (it just pulls off). Then just push the cover through the tool after using it to remove the locking nut cover from the tool. The others are removed just with the wheel brace, ie no covers.
Good Luck,