Miter saw is a versatile tool with adjustable angles that can cut a variety of materials but they are specifically designed to cut wood and composites for different construction and woodworking jobs. Sometimes your job requires you to cut thin sheets of metal, read the miter saw manual to confirm if that saw and blade is suitable for cutting metal. But in our opinion, it is not very safe to cut metal with a compact miter saw; you can always use the hacksaw which is an original metal-cutting tool.