PREMIUM QUALITY MATERIAL: The wood file set is made of high quality carbon steel, the hardness of the file body is up to 63-66HRC, durable and heat resistant. The fine-grained texture of the metal file set is deeply hardened and coated for long-lasting cutting performance COMPLETE 57 PIECE METAL FILING SET: Filing set comes with 18 files, two additional electric filing heads - 1/4 inch handle and a scraper, and 36 sheets of sandpaper. Ideal for wood, metal, mirrors and more. Shape cutting and polishing. 14 NEEDLE FILES: With rounded details and fine workmanship, these files feature precise, rounded, edges, joints, crevices and isometric electric poses, 2 file heads - 1/4 inch handle steel rotary file for metal polishing wood carving drilling engraving die grinder bits 36 Grit Assortment: 400/600/800/1000/1200/1500/2000/2500/3000 grits with 4 sheets of each gritAll sandpaper is 9 x 3.6 inches, you can also cut it to any size you need. The soft-backed sandpaper ensures a good grip in your hand, and you can use it with just the right amount of force to smooth out objects with a high degree of non-slip or looseness during use. Grit specifications are printed on the back of the paper for easy identification. FILE PROTECTION: Keep file teeth protected at all times in the large 13.5-inch/345-mm long zippered case. It is made of splash-proof Oxford cloth with a reinforced case and a wrap-around zipper that opens for easy access to tools. Each tool is tightly secured in its own groove with elastic bands to prevent movement and damage during transportation or when placed in the bottom of the kit Translated with DeepL.com (free version)