The Sealey 7 Piece 3/8" Drive Bi Hexagon Socket Set is a specialist Whitworth socket set designed for maintenance and restoration work on classic vehicles. Manufactured from hardened and tempered Chrome Vanadium steel, this socket set delivers the durability and precision required for working with British Standard Whitworth (BSW) fasteners commonly found on vintage cars and motorcycles. Each socket features a fully polished mirror finish that provides excellent resistance to corrosion whilst maintaining a professional appearance. The bi-hexagon (12-point) configuration allows for easier engagement with fasteners in confined spaces, making it particularly useful when working in the restricted areas typical of classic vehicle engine bays and chassis assemblies. This set includes seven popular Whitworth sizes: 1/8", 3/16", 1/4", 5/16", 3/8", 7/16", and 1/2", covering the most commonly encountered fasteners on British classic cars. The sockets are supplied on a socket rail for organised storage and quick size identification in the workshop. Backed by a lifetime guarantee, this socket set represents a reliable long-term investment for classic car enthusiasts, restoration specialists, and mechanics working with vintage British machinery. Features and Benefits: • Chrome Vanadium steel construction for strength and longevity • Mirror polished finish resists corrosion and maintains professional appearance • Bi-hexagon design allows better access in restricted spaces • Socket rail included for organised storage and easy size selection • Lifetime guarantee for peace of mind Specifications: Brand: Premier Configuration: 12pt Socket Contents: 1/8", 3/16", 1/4", 5/16", 3/8", 7/16", 1/2", Socket Rail Depth: Standard Nett Weight: 0.33kg Qty: 7 Type: 3/8"Sq Drive - Whitworth