The Draper Expert 41 Piece 3/8" Drive Bi Hex Socket Set combines metric and imperial sockets with a comprehensive range of accessories, designed for professional mechanics and automotive technicians working with both measurement systems. This socket set features twelve-point bi-hexagonal sockets manufactured from chrome vanadium steel that has been hardened and tempered for durability. Each socket incorporates a knurled ring for enhanced grip during use, whilst the polished finish resists corrosion. The 72-tooth reversible ratchet delivers fine indexing in confined spaces, with a quick-release button for efficient socket changes. The set provides versatility through its included accessories, featuring three wobble extension bars at 75mm, 150mm and 250mm lengths for reaching awkward locations. A flexible handle, universal joint, spinner handle and sliding T-bar offer multiple drive configurations to suit different access requirements. The comprehensive socket range spans 6mm to 22mm in metric sizes, plus nine imperial sockets from 1/4" to 3/4", along with four metric deep sockets and three spark plug sockets for specialist applications. All components are organised in a robust plastic storage case with a soft-grip handle, keeping the set secure and portable between job sites. Contents: 17 x Metric socket: 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22mm 4 x Metric deep socket: 8, 10, 12, 13mm 9 x Imperial socket: 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4" 3 x Spark plug socket: 10, 12, 14mm 1 x 72 tooth reversible ratchet with quick release button 3 x Wobble extension bars: 75, 150, 250mm 1 x Sliding T bar 1 x Flexible handle 1 x Universal joint 1 x Spinner handle