Fuller Pro Socket Adaptor 3/8 inch SKU: 254182 MODEL: 507-3908 Error. try again later You've successfully joined the club $ 3 .98 each Mitre 10 MAvailable at Mitre 10 MEGA stores. Variants High quality chrome vanadium steel for long life fits a 3/8 inch drive and adapts it to a 1/4 inch. Features and benefits Chrome vanadium steel for durability. Suitable for a 3/8 inch drive. Rust resistant finish.