The Abbey Bike Tools Pedal Wrench Part 6mm and 8mm Hex is the exact same hex incorporated into Abbey's Shop Pedal Wrench and Team Issue Pedal Wrench, so if yours is damaged or scarred, you can swap it straight in.
With the fresh hex in place, you'll be able continue loosening pedals requiring either 6mm or 8mm keys, as well as those demanding a 15mm box end, all with one highly versatile tool.