Ko-ken RS3010MZ/8-L50 3/8" Sq. Dr. 8-Piece Z-Series Hex Bit Socket Set offers high-performance with its 50mm hex bit sockets, which are designed for durability and precision. This set includes sizes 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 10mm, and 12mm, all fitting a 3/8" drive. The Z-Series sockets are built to withstand heavy use and are mounted on a 200mm rail for organized storage and quick access. Ideal for a wide range of fastening tasks, this set combines reliability with the enhanced grip and durability of the Z-Series design.