The Caran d'Ache Model 2004 Pencil-Sharpening Machine is Swiss made and features die-cast metal construction, automatic pencil feed and sharpening angle adjustment. It automatically stops feeding pencil when sharp and prevents wasteful over-sharpening.The metal construction is of a quality that you just don't see anymore. It is made to last a lifetime. Includes a clamp for attaching sharpener to a desk or table top. Sharpens pencil sizes up to 10 mm.