Stainless steel grooving device used to create slots in the back of tiles to install the RAI-FIX safety hooks. Compatible with most models of angle grinders. Supplied without an angle grinder (600 - 1100 W, diamond disk Ø: 125 mm). Can be connected to a vacuum cleaner (hose Ø: 38 mm). Suitable for tiles 5 - 30 mm thick