Snap On Tools USA FTSM5E 3/8”dr 5mm Standard Triple Square Bit Socket. Used specifically 1988 to present BMW 3 and 5 Series differential fill plug. It is a high-quality hand tool designed for automotive use. This single item socket features a chrome surface finish and a 3/8 inch drive size, making it compatible with a variety of applications. With a focus on precision and durability, this socket is a reliable addition to any mechanic’s tool collection. New socket may show cosmetic blemishes from being on actual tool truck