20mm x 250mm x 500mm ground flat stock, also known as gauge plate, is of superb quality as it is manufactured from only UK and European raw materials. It has also been annealed to provide more excellent ductility and workability. The ground flat stock & gauge plate we supply are all manufactured from O1 Tool Steel. This item is not kept as a stock item therefore there is a 5 - 7 working day lead time for dispatch. 20mm x 250mm x 500mm - Gauge Plate