SK PROFESSIONAL TOOLS Skt Adptr, Steel, Chrome, 3/8 in, 1/4 in

Socket Adapter, Input Drive Size 3/8 in, Input Drive Shape Square, Input Drive Gender Female, Output Drive Size 1/4 in, Output Drive Shape Square, Output Drive Gender Male, Overall Length 1 1/8 in, Drive Type Hand, Non-Sparking No, Insulated No