Spark Plug Socket 3/8″D 21mm
Size: 21mm single Hex (6pt) x 3/8″D x 55.5mm long.
Outside hex: 22mm; inside depth: 26.2mm; outer diameter 27.3mm.
Fitted with rubber insert to protect and hold the spark plug.
Manufactured from chrome vanadium.
Included as part of a socket rack comprising 70 mixed sockets, please see Laser Part No. 1161.