Fine polishing files are crafted from high-quality tempered glass with superior hardness and wear resistance, equivalent to #600-800 grits sandpaper. Specially engineered for precise sanding and polishing of plastic, resin and wood, they maintain consistent cutting performance and smooth finishes even after long periods of intensive modeling use. Ultra fine polishing files are ideal for both wet and dry sanding applications, helping to reduce dust while improving smoothness. Multiple shapes are designed for tight corners, curves and flat areas, and the file can also be combined with adhesive sandpaper as a sanding stick to handle various finishing and detailing jobs. After sanding, simply rinse the glass files with water and gently scrub with a brush to clear debris and restore their original polishing efficiency. Each file comes in an individual protective case to prevent damage and keep edges , making storage and transport while extending tool life in every hobbyist and modeler's toolbox. Perfect for hobby modeling tools and precise finishing work on kits, scale models, 3D resin parts and PLA prints. Also suitable for refining details on plastic, wood and other modeling materials, these glass files help remove mold lines, and seams, delivering cleaner edges and professional-level preparation., Weight: 0.1322773572 Pounds, Manufacturer: NONDK