General description A set of 5 slim spark plug sockets designed with very thin walls to fit the narrow spark plug recesses commonly found in modern vehicles. These sockets are manufactured from chrome vanadium steel, ensuring strength and durability, and feature rubber inserts to grip the spark plug safely. Technical specifications Sizes: 14mm (O.D 18.8mm), 16mm (O.D 20.8mm), 18mm (O.D 23.9mm), 19mm (O.D 24.8mm), 21mm (O.D 26.8mm) Drive size: 3/8''D Socket length: 65mm Profile: 6 point (single hex) Material: Chrome vanadium steel with satin finish Other information Supplied in a blow moulded storage case Fitted with rubber inserts to protect and retain the spark plug