Elora metric flare nut spanners elora 4519 professional quality manufactured from chrome vanadium steel hardened tempered and chrome plated for corrosion protection jaws set at 15176 hexagon or bi hexagon open end ring for use on compression nuts fitted on petrol and diesel injection pipes hydraulic gas or refrigeration systems sold loosemanufactured to din 3118 specificationshexagon jaw elora 4519 13mm x 14mm metric flare nut spanner