?? Sets of different shape can match your different needs, precision milled, tempered and coated for durable cutting and good performance. Precision Milled, Tempered and Coated for Durable Cutting and Good Performance, second-cut grade is ideal for deburring, shaping, and sharpening. ?? Different shapes of files make a perfect combination for various application of sharpening, shaping and deburring hobby models, jewelry, clocks, watches, wood, metals The file handle is made of premium quality rubber and plastic materials and features ergonomic shape. It' s no-slip and comfortable to keep a firm and long time hold even in wet and oil conditions