Check the workpiece for stability and damage before use. Using it may take some getting used to. Incorrect use may cause injury or damage. Use it in a safe place. Wear protective eyewear, mask, and gloves when using the product. Do not touch the file's face with your bare hands. Do not hit anything with the product. Do not subject it to excessive force or shocks. Immediately discontinue use if the product becomes deformed or damaged. Use and keep out of reach of children. Do not store in a place subject to direct sunlight or high temperature and humidity. Keep away from fire and other sources of heat. Do not use this product for purposes other than its intended purposes.