Using this Klein screwdriver set is a breeze. First, to change the blade, just give the lock collar a quick twist. You can then either replace the blade with a different one or flip it if it's a double - ended blade. When working, the cushioned handle provides a good grip and helps you apply more torque comfortably. Remember, this set is designed for work near energized sources, so always check for proper insulation before use. The orange insulation layer is there to protect you from electric shock, flame, and impacts, but don't abuse it. After use, clean the blades with a dry cloth to remove any dirt or debris. Store the set in the provided carrying roll pouch to keep it organized and protected. This will also help prevent the blades from getting damaged and keep the set in good working condition for a long time.