sparkplug wrench(n = noun.artifact) - a wrench for removing or tightening spark plugs into the cylinder head of an internal combustion engine;
is a kind of spanner, wrench
adjustable wrench, allen wrench, alligator wrench, box end wrench, box wrench, brace wrench, bulldog wrench, carriage wrench, chain wrench, crescent wrench, dog wrench, hook wrench, lug wrench, monkey wrench, open-end wrench, pin wrench, pipe wrench, s wrench, screw wrench, socket wrench, stillson wrench, tap wrench, tappet wrench, torque wrench, tube wrench, wrench