FOR STUDLESS WHEEL HUBS – Removes surface dirt and corrosion on hubs that use wheel bolts. • IDEAL FOR PREPARING WHEELS – Can be used to prepare wheels, hubs and brake discs for re-assembly. • 150MM CLEANING DISC – 150mm diameter disc with centre bore of 90mm. • FOR USE WITH 1/2"SQ DRIVE ADAPTOR – Suitable for use with power tools (Max 1500 rpm).