4pc Spark Plug Sockets Set - 3/8" Drive - Sizes 16 & 21mm

Professional-grade spark plug socket set designed for precision engine maintenance. This 4-piece collection includes both 16mm and 21mm sockets in standard and flexible variants, accommodating a wide range of vehicle spark plug configurations. The 3/8" drive connection ensures compatibility with standard ratchets and torque wrenches, making it ideal for DIY mechanics and professional technicians alike. Flexible sockets provide enhanced access to hard-to-reach plugs in tight engine bays, while rigid sockets deliver maximum durability for demanding applications. Durable construction withstands repeated use and delivers reliable performance across petrol engines. Essential addition to any automotive toolkit.