... whether hardened, or not.)Copper, Brass, Aluminum: They are a cinch!brittle materials like glass, ceramic, quartz, stone.laminatesflammable ... machine. Make a part, then 2 minutes be making a completely different part from a completely different material.Leaves a satin smooth ... .No "scaley" edges, which makes it easier to make a high quality weldMachine composite materials, or materials where dissimilar ...