What safety precautions should be taken when using a grinder wheel for metal?

When using a grinder wheel for metal, it is important to wear proper safety gear such as goggles, gloves, and a face shield to protect against sparks and debris. Make sure the wheel is securely mounted and not damaged, and always follow the manufacturer's instructions for proper use. Keep a safe distance from others while operating the grinder, and avoid using excessive force or pressure. Additionally, be mindful of the direction of the sparks and always work in a well-ventilated area to prevent inhalation of metal dust.