52 piece 1/4” - 3/8” - 1/2” drive socket set. Triple chrome plated for rust resistance. Contains: 22 SAE sockets in 1/4", 3/8" and 1/2" drive, 16 metric sockets in 1/4", 3/8" and 1/2" drive, 3/8" drive reversible ratchet and accessories, 1/4" drive spinner handle, 3/8" (F) x 1/4" (M) adapter, 3/8" drive spark plug socket 5/8", 5 screwdriver bits and a molded storage case.