ARNOLD 13-16-19-21mm-3/8" Multi-Spark Wrench. The ARNOLD 13-16-19-21mm-3/8" Multi-Spark Wrench are essential tools for the maintenance and service of spark plugs, essential components of internal combustion engines. Constructed from durable steel, they feature exceptional strength and wear resistance, ensuring longevity in demanding machinery environments. Their 10mm and 16mm sizes cover a wide range of spark plug applications, while the square slot is suitable for the engine oil cap. The sockets have a grooved surface for a secure grip, preventing slipping during use. In addition, their design provides ample clearance for the installation of long spark plugs, offering easy access even in tight engine bays. The ARNOLD 13-16-19-21mm-3/8" Multi-Spark Wrench is manufactured to the highest industry standards, ensuring accuracy and reliability.



