Home Tank Inspection 8. Operating Equipment Drum Bung Spanner Drum Bung Spanner Rigana drum bung spanners are suitable for opening and closing both small and large bungs. Category: 8. Operating Equipment Description See our full range of industrial operating equipment Related products Drum Decanting Trolley 8. Operating EquipmentRead more Proving Cans (Test Measures) 8. Operating EquipmentRead more Inspection Mirror for vehicles 8. Operating EquipmentRead more Fuel D1 8. Operating EquipmentRead more