The Proto J48055AM universal joint socket is designed for improved access in tight and angled fastening applications. Featuring a 5.5mm size with a 1/4" drive, this professional-grade 6-point socket includes an integrated universal joint that allows flexibility when reaching obstructed or hard-to-access fasteners. Constructed from durable alloy steel, it provides secure fastener engagement while helping reduce fastener rounding during use. Ideal for automotive, industrial, electronics, and mechanical repair applications requiring precision and maneuverability.