Brake Calliper Thread Repair Set. Quick & effective way to replace brake calliper threads. Size M9 x 1.25mm (to accept an M9 x 1.25mm bolt). 1 M9 x 1.25mm Tap. For VAG VW Beetle. Wide Compatibility – for FORD, VAG, OPEL:Specifically designed for FORD, VAG (VW, Audi, Skoda) and OPEL models with M9×1.25 brake threads.