<p><b>Product features:</b></p> <p><b>The large files:</b></p> <p>Semicircular files are used for flat or curved surfaces</p> <p>Flat files are used for flat or simple curves to create smooth and consistent surfaces</p> <p>Triangular files are used to smooth angled cuts or corners on grooves</p> <p>Round files are used to deburr and enlarge holes or smooth concave curves</p> <p></p> <p><b>The small files:</b></p> <p>Flush flat file /pointed flat file is used to file flat, outer round surface, convex arc surface</p> <p>Triangular files are used to file internal angles, triangular holes, and flat surfaces</p> <p>Square file is used to file square hole, long square hole, narrow plane</p> <p>The round file is used to file round holes, convex arc surfaces with small radius, and elliptical surfaces</p> <p>Semicircular file is used to file convex arc surface and flat surface</p> <p>The elliptical file is used for filing concave and convex surfaces, elliptical holes, rounded corners, concave rounded corners</p> <p>Knife file is used to file the inner angle, narrow groove, wedge groove ect.</p> <p></p> <p><b>Precautions:</b></p> <p>1. Please don't use a new file to break the metal whose hardness exceeds 55</p> <p>2. Avoid water, oil or other dirt; Always use wire brush to remove chips in the tooth groove</p> <p>3. Do not hit hard objects with a file, Not suitable for filing soft metal materials (ex aluminum, copper, molded plates, etc.) and non-metallic materials (ex plastic, nylon, fiber materials, etc.)</p> <p>4. Forgings and castings with hard or sticky sand must be ground on a grinder before they can be filed with a semi-sharp file</p> <p></p> <p><b>Shipping list:</b></p> <p>Brush * 1</p> <p>Large file * 4 (semi-circular file *1 /flat file *1 /triangular file *1 /round file *1)</p> <p>Small file * 14 (flush head flat file *2 /pointed flat file *2 /triangular file *2 /square file *2 /round file *1 /semicircular file *1 /ellipse *1 /knife type *1 )</p>