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Silver 4-inch ultra-thin spark plug socket displayed diagonally, showing the slim body, laser-etched size markings, and 3/8" ball-joint drive end.
Silver 4-inch ultra-thin spark plug socket displayed diagonally, showing the slim body, laser-etched size markings, and 3/8" ball-joint drive end.
Silver 4-inch ultra-thin spark plug socket displayed diagonally, showing the slim body, laser-etched size markings, and 3/8" ball-joint drive end.
Silver 4-inch ultra-thin spark plug socket displayed diagonally, showing the slim body, laser-etched size markings, and 3/8" ball-joint drive end.
  1. Silver 4-inch ultra-thin spark plug socket displayed diagonally, showing the slim body, laser-etched size markings, and 3/8" ball-joint drive end.
  2. Silver 4-inch ultra-thin spark plug socket displayed diagonally, showing the slim body, laser-etched size markings, and 3/8" ball-joint drive end.
  3. Silver 4-inch ultra-thin spark plug socket displayed diagonally, showing the slim body, laser-etched size markings, and 3/8" ball-joint drive end.
  4. Silver 4-inch ultra-thin spark plug socket displayed diagonally, showing the slim body, laser-etched size markings, and 3/8" ball-joint drive end.

4-Inch Ultra-Thin Magnetic Spark Plug Socket with Flex-Joint | 3/8″ Drive 14mm & 16mm Deep Socket for Tight Engine Wells

Original price was: $48.00.Current price is: $21.99. Tax included. Shipping calculated at checkout.

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The Perfect Balance of Reach and Flexibility
Navigating tight engine bays requires more than just a long extension; it requires precision. Our 4-Inch Ultra-Thin Magnetic Spark Plug Socket is engineered to reach recessed spark plugs that standard tools can’t access, while the built-in flex-joint allows you to maneuver around obstacles without disassembling engine components.
Available Sizes:
  • 14mm Ultra-Thin Flex Socket: Ideal for compact cars, motorcycles, and specific import vehicles.
  • 16mm Ultra-Thin Flex Socket: The standard size for most domestic and European automotive applications.
Key Features:
  • Built-in Universal Joint (Flex-Head): Features a robust ball-joint drive at the top (3/8″), allowing the socket to articulate up to 30-45 degrees. This flexibility is crucial for bypassing intake manifolds and strut towers in cramped engine compartments.
  • Ultra-Slim Profile Design: Significantly thinner than standard sockets, with a head diameter of just 1.4cm (14mm size) and 1.6cm (16mm size). It slides effortlessly into narrow spark plug tubes where bulky ratchets get stuck.
  • Powerful Internal Magnet: Equipped with a high-strength built-in magnet that securely grips the spark plug ceramic. This prevents the plug from falling out during removal or getting dropped deep into the engine cylinder—a mechanic’s worst nightmare.
  • Optimal 4-Inch Length: At 9.95cm (approx. 4 inches), this socket offers the perfect balance—long enough to reach deep wells, but short enough to maintain control and torque in extremely confined spaces.
  • Premium CR-V Steel Construction: Forged from high-grade Chrome Vanadium (CR-V) steel and heat-treated for superior strength. The polished chrome finish resists rust and corrosion in harsh engine environments.
Applications:
Essential for professional mechanics and DIY enthusiasts working on vehicles with deeply recessed or angled spark plug wells. Perfect for routine tune-ups on modern transverse engines, V6/V8 layouts, and motorcycles where space is at a premium.
Weight250 g
Dimensions12 × 6 × 6 cm

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