spark plug tool / socket / wrench 3-in-1 (16mm, 18mm, 21mm) 28772

3-in-1 spark plug tool with 16mm, 18mm or 21mm socket for use with 10, 12 or 14mm thread spark plug.

Size indications for NGK plugs (match first letter):

C = 10mm spark plug thread / socket size 16mm
D = 12mm spark plug thread / socket size 18mm
B = 14mm spark plug thread / socket size 21mm