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Spark Plug Socket Proxxon PR23551 18 mm, 3/8" Drive
The Proxxon PR23551 spark plug socket 18 mm with a 3/8" drive is a precision tool designed for safe removal and installation of spark plugs in automotive and small-engine applications. Machined to tight tolerances, this socket fits standard 18 mm spark plugs and connects to any 3/8" ratchet or extension, providing reliable engagement and controlled torque transfer. The tool is suitable for workshop mechanics and DIY users who need a compact, dependable socket for regular maintenance tasks.
This 18 mm spark plug socket provides a secure fit on the plug hex to minimize rounding and slipping during service. The 3/8" drive interface ensures compatibility with common hand tools and extensions, enabling access in confined engine compartments. Manufactured by Proxxon with focus on dimensional accuracy and durable finish, the socket offers consistent performance and resistance to wear under normal use.
Select the 18 mm socket and attach it to a compatible 3/8" ratchet or extension. Before loosening a spark plug, ensure the engine is cool to avoid damage to the threads. Fit the socket squarely onto the spark plug hex and apply steady torque to loosen or tighten the plug, using an extension where access is limited. After installing a new plug, tighten to the vehicle manufacturer's specified torque using a torque wrench if required.
Use with clean extensions and ratchets to prevent contamination of the spark plug and cylinder head threads. Avoid excessive torque that can damage the plug or threads; follow manufacturer torque specifications and inspect the socket for wear before each use.
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