Using your Makita A-95984-25 INOX grinding wheels is easy. First, make sure you've got a 4-1/2' angle grinder. Then, install the wheel securely on the grinder. When you start grinding steel or stainless steel, apply gentle pressure and let the wheel do its job. The 36 grit and aggressive composition will quickly remove material. Remember to wear safety goggles and ear protection to stay safe. As for maintenance, after each use, clean the wheel to keep it in good shape. Check for any signs of damage regularly. If you notice any cracks or chips, don't use the wheel - replace it right away. This will ensure that your wheels last a long time and perform at their best.