Mitre box is aluminum construction; razor saw is steel construction Allows for 45° and 90° cuts Allows for cuts up to 7/8" deep Holds materials 1/16" to 1.25 " (1.6mm to 6.35mm) wide Width of cutting area 1.75" / Depth of cutting area 7/8" This tool is ideal for precision finishing of woods, plastics, or soft metals. Make clean, precise mitred corners for model parts, trim, and countless other applications. Square base suppresses rocking in use for cleanest cuts possible. Suitable for hobby, modeling and miniatures, arts and crafts, electronics, jewelry making, DIY, home, and commercial use. An essential tool for any modeler.