Using the Makita A - 80597 flat chisel is easy. First, make sure your Makita large shank concrete hammer is turned off and unplugged. Insert the flat chisel into the hammer's tool holder. Once it's securely in place, you can start using it for chipping, edging, or channeling in medium - hardness materials. When using, hold the hammer firmly and keep a stable stance. Always wear safety goggles and gloves to protect yourself from flying debris. After use, clean the chisel with a brush to remove any dirt or debris. Store it in a dry place to prevent rusting. If you notice any signs of wear or damage, it's best to replace the chisel for safe and efficient operation.