Using the Makita cut-off wheels is easy. First, make sure your cutting tool is compatible with the 7/8' arbor hole of the wheel. Then, securely attach the wheel to your tool. When cutting, apply moderate pressure and let the wheel do the work. These wheels are great for cutting ferrous metals such as steel and cast iron. As for safety, always wear protective gear like goggles and gloves. Don't use the wheel if it's damaged. To maintain the wheels, store them in a dry place away from moisture. This will help keep them in good condition and ensure they last as long as possible, up to 3.5 times longer than standard cut - off wheels.