General description A 1/2" drive ball joint socket designed specifically for the removal and fitting of screw-in type front lower ball joints on Renault Twingo models. Technical specifications Drive size: 1/2" Length: 40mm (45mm to top of pins) Number of pins: 4 Pin diameter: 7.75mm Usage Application: Renault Twingo II Sport 133 (2007 - 2014) For optimal removal, it is recommended to warm the lower arm eyelet with a flameless heat gun.