The Spanner Wrench is an OEM part for LG refrigerators. It is used to adjust the internal components of the refrigerator, such as the leveling legs or the door hinges, ensuring proper alignment and stability. This spanner wrench is designed to fit specific adjustment points within LG refrigerator models. Causes of a bad spanner wrench can include wear and tear over time, loss of grip or functionality, or damage due to improper use.