Material: Alloy Steel, Carbon Steel Brand: TARIST Style: File Set - 3 Piece Set Product Dimensions: 33.5 length x 10.5 width cm Exterior Finish: Iron Included Components: Flat, Round, Half-Round 【High-Quality Material】 - The files are made of premium T12 carbon steel, and the body hardness is up to 62-66HRC. The teeth are deeply hardened and coated, achieving durable filing performance. 【Scope of Use】 - Can be used for filing, deburring, shaping, trimming, polishing, and other processing on anything, such as metal, jewelry, plastic, ceramic, and glass. 【Care Instructions】 1. Store the files in a box to protect the teeth. 2. Lightly apply machine oil to prevent the files from rusting. 【Warning】 - The teeth are deeply hardened and coated, so avoid dropping the files.