This engineers file is developed according to the scientific ERGO process for filing flat surfaces, sharp corners, and shoulders, as well as for deburring. It is designed for working in high-alloy tool steels and for sharpening heavy implements, offering a high removal rate. The file has parallel edges and surfaces, with double cut surfaces, one uncut edge, and one single cut edge. It is a value for money, easy-to-use, and durable product. Weight: 0.661386786 Pounds.