Sealey S38SP14 Spark Plug Socket 21mm 3/8"Sq Drive

Cold-forged Chrome Vanadium steel socket. Hardened, tempered and chrome plated. Fully polished mirror finish with knurled ring. Socket insert grips ceramic insulation and assists in extraction of plug. Especially useful on deep-seated plugs. For other variations of individual Spark Plug Sockets, see page XXX.