Draper 15-Piece 1/2” Square Drive Metric Socket Set This comprehensive socket set is great for a multitude of DIY tasks, complete with a ratchet, two extension bars and 12 sockets, all stored in a hardwearing carry case. Each piece is hardened, tempered and chrome-plated for extra protection against corrosion. Includes 11 x bi-hexagon sockets (10‒22mm), 1 x 14mm spark plug socket, 1 x reversible ratchet, 2 x extension bars (125 and 250mm)