Grooving tool with out grinder Raimondi RAL-CUT 299PFLEX UN frame is a universal holding frame for angle grinders FRAME ONLY this device holds the grinder at the right angle to cut the slot in the back of the wall tiles or stone slabs to insert the Ral FIX HOOK mechanical system. This fixing is a safe guard when fixing tiles vertical to clad interior and exterior of building's. Suitable for tiles from 6mm to 30mm see full spec