... whether hardened, or not.)Copper, Brass, Aluminum: They are a cinch!brittle materials like glass, ceramic, quartz, stone.laminatesflammable materialsMake ... turn around on the machine. Make a part, then 2 minutes be making a completely different part from a completely different material. ... between high production, and single piece production, on the same machine, with no extra effort.Are very safe. (No, ...