Magnetic Spark Plug Socket 3/8″D 21mm
Thin wall spark plug socket for use on modern engines with limited plug clearance. Extra long to access deep seated spark plugs.
Size: 21mm Bi-Hex (12pt) x 3/8″D x 250mm long.
Outside diameter: 27mm; inside depth: 71.8mm
Magnetic end holds the spark plug safely & securely, with the knurled end for finger grip tightening.
Manufactured from chrome vanadium. Other sizes available, please see Laser Part Nos. 3681 (14mm)& 3682 (16mm).







