General description A Spline bit specifically designed for VAG brake caliper bolts, this tool is essential for working on various Volkswagen and Audi models. Technical specifications Size: 1/2" Drive x 100mm long Type: M14 spline Socket material: Chrome vanadium Bit material: Silicon steel Compatibility and accessories Applications: Ball joints on Volkswagen LT, Transporter, Touran Rear caliper bolt on Passat and Audi A3