•Helps engage a spark-plug thread in any location.
•For all types of spark plug. Length 316 mm.
•915-7476: 9/16" (14.3 mm).
•915-7477: 5/8"  (15.9 mm).
•915-7478: 13/16" (20.6 mm).

•Helps engage a spark-plug thread in any location.
•For all types of spark plug. Length 316 mm.
•915-7476: 9/16" (14.3 mm).
•915-7477: 5/8"  (15.9 mm).
•915-7478: 13/16" (20.6 mm).