This 150 mm extension bar with a 3/8-inch (9.525 mm) square drive enhances accessibility for socket spanners, enabling efficient work in confined spaces. Its ball-type end ensures secure socket retention and reliable torque transfer, suitable for professional automotive and mechanical applications. Key features: - Length: 150 mm for extended reach - Square drive size: 3/8 inch (9.525 mm) - Ball-type end for secure socket attachment - Compatible with a wide range of socket spanners - Ideal for precision tasks in automotive and mechanical fields