General description Sealey Premier Crow's Foot Open-End Spanner Set is designed for professional use, ideal for applications where access is limited. This 10-piece set features a 3/8" square drive and is manufactured from hardened and tempered Chrome Molybdenum steel with a fully polished mirror finish, ensuring durability and longevity. Technical specifications Material: Hardened and tempered Chrome Molybdenum steel Finish: Fully polished mirror Sizes: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19mm Model No.: AK5989 EAN: 5051747784017 Compatibility and accessories Suitable for use with extension bars and ratchet wrenches Supplied on a storage rail Other information