Engraving File Needle Deburring Kit Sanding Tools DIY 3D Printer Part Grinding Trimming Tool 3D Model File Cutter Scraper Features: Suitable for hardened steel, glass, tile, stone, gold, and polishing 3D models etc Dimensions: 3×140mm Grit: #120 Material: Steel + Plastic Package Included: 5/10 x Needle File