These tools are ideal for carving, shaving, shaping and forming. They have all the advantages of earlier sheet metal files plus one distinctive advantage, these really work. Constructed from tough, fully hardened stainless steel, MicroPlane tools feature razor sharp teeth that cut 10 times faster and hold a cutting edge 10 time longer than similar sheet metal tools. MicroPlane tools are designed to cut hardwood, softwood, masonite, particle board and other relatively soft materials. The round blade comes equipped with its own comfortable Santaprene handle. It is used like other round files and rasps to cut flat bottomed notches and triangular grooves, but it cuts much faster and leaves a smoother finish than any similar tool.