General description Manufactured from hardened and tempered Chrome Vanadium steel with a fully polished mirror finish, the Sealey AK63190 Premier Extra-Long Double Ring Ratchet/Fixed Spanner Set is designed for durability and professional use. This 13-piece set features 12-Point ratchet/fixed WallDrive® ring ends that grip the wall, not the corners, providing up to 30% more torque. The smooth 72-Tooth ratchet requires only 5 rotations to pick up the next tooth, making it efficient for various tasks. The set is supplied in an EVA foam storage tray for easy organization. Technical specifications Material: Chrome Vanadium steel Finish: Fully polished mirror Ratchet teeth: 72 Set contents: 8, 10, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 24mm Extra long lengths: 230mm and 445mm Other information Lifetime guarantee*