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With the Facom B.J16A1 spark plug socket, you can easily remove, inspect, and install 16 mm spark plugs in combustion engines. Its 90 mm overall length provides deep reach into recessed spark plug tubes where standard sockets fall short. The precision 6-point profile ensures a secure grip to prevent rounding the edges, while the built-in retaining system holds the spark plug firmly inside the socket during removal and placement. Featuring a standard 3/8" square drive, it connects directly to your 3/8" ratchet or extension bar for reliable control during engine servicing.