General description The Neilsen Ball Joint Socket is designed specifically for Mercedes Benz vehicles, providing a quick, easy, and professional solution for loosening and tightening the supporting joint flat nut. Its unique design ensures that the supporting joint pin is held securely in place during operation, allowing for efficient use with a 1/2" screwdriver. Technical specifications Size: 43 mm (tip to tip) Material: 40CR Drive size: 1/2" Compatibility and accessories W 167: GLE and GLS Front and rear axle W 205: C-Class 4Matic and AMG models (sedan, T-model, coupe, and convertible) Front axle W 213: E-Class 4Matic and AMG models (sedan, model T) Front axle W 238: E-Class 4Matic and AMG models (coupé, cabriolet) Front axle W 253: GLC AMG and GLC Coupé Front axle W 257: CLS 50 AMG Coupé Front axle