The Ko-ken RS3300W/7 is a 7-piece 3/8″ square drive Whitworth deep socket set with 6-point openings, providing a secure fit for fasteners. This set covers sizes from 1/8″ to 1/2″, including 1/8″, 3/16″, 1/4″, 5/16″, 3/8″, 7/16″, and 1/2″. Each socket is mounted on a 200mm rail for easy storage and access. Designed for durability and precision, this set is ideal for professional mechanics and enthusiasts working with Whitworth fasteners.

Input Drive size: 3/8″ Drive Shape: Square Length: 200mm Type: 6 Point Deep Whitworth Socket Set on Rail Pcs: 7 Output sizes: 1/8, 3/16, 1/4, 5/16, 3/8, 7/16, 1/2 Opening: 6pt