Follow these procedures to remove scrap from an outdated circular saw: Make sure the saw is unplugged and off. To clear the blade of any loose particles, use a brush or compressed air. Apply a cleaning solution made especially for saw blades and let it sit for a few minutes if there is any sticky residue. Use a non-abrasive pad or a soft-bristle brush to gently scrub the blade. Before storing or reusing the blade, thoroughly rinse it with water and dry it completely.