4355M/A ½” Spring Spark Plug Socket | 6-Point

4355M (Metric) and 4355A (SAE/Imperial) Series introduces a highly advanced, mechanical clip retention system for extreme ignition servicing—a professional-grade 1/2″ Drive Spring Spark Plug Socket (6-Point). Specifically engineered to deliver the absolute “Mechanical Truth” inside heavy industrial engine bays, diesel-gas co-generation systems, agricultural machinery blocks, and rugged field service workshops, this tool offers an elite alternative to both rubber inserts and magnetic retention systems.

The core engineering breakthrough of the 4355 series is its integrated internal steel leaf-spring clip mechanism. While magnetic sockets are excellent for pristine environments, they can naturally attract fine ferrous shavings, grit, and metallic dust inside dirty industrial bays, which can ruin spark plug ceramic seals or mess up plug seating. Hans solves this layout constraint by using a non-magnetic, mechanical spring clip ring that securely snaps onto the plug’s terminal tip and upper insulator thread, offering reliable alignment and zero-drop tool security.