13mm washer copper blank for jewellery enamelling and other crafts.
Copper Washer 13mm, with 3mm central piercing in 0.7mm (22 gauge).
These copper stampings are manufactured using very high quality BS 101, 99.9% pure phosphorus free copper, in a half-hard condition. When this grade of material is heated any firescale is even and free of flaking, making an ideal base for fine enamelling processes.