Using these HCR diamond polishing pads is easy. First, choose the right grit and size according to your concrete floor's condition. For rough surfaces, start with a coarser grit like HCR 4. For finishing touches, use a finer grit such as HCR 2. When using the HCR2 disc with CONCRETE FILLER, apply the filler first and then use the pad to polish. Make sure to keep the pad wet during the polishing process to prevent overheating and ensure a smooth finish. After use, clean the pad thoroughly with water to remove any debris. Store the pads in a dry place to avoid rust and damage. Also, always wear appropriate safety gear like goggles and gloves when using these pads.