Multitool for Optimus Nova and Nova+.
Service functions: 11 mm key for burner bottom nut, 10 mm key for fuel hose change, hook for pump valve, 7 mm key for pump leather cup, 8 mm slot for spindle nut, 6 mm key, screwdriver for jet adjustments, cleaning magnets, 12 mm key, slot for adjusting burner plate legs
