Using your Klein ball - peen hammer is easy. Hold the hammer firmly by the non - slip grip and use the flat face for general hammering and the peened end for shaping and bending. When using it, make sure your work area is clear of any obstacles. Also, always wear safety goggles to protect your eyes from flying debris. For maintenance, after each use, wipe the hammer with a dry cloth to remove dirt and debris. Check the head for any signs of wear or damage regularly. Store the hammer in a dry place by hanging it using the hang hole on the handle to keep it organized and ready for the next use.