I don't usually write reviews, this time I had to. The tool fitted my grinder perfectly .with many collars for different Models I sanded a concrete slab with it, surprisingly no dust, highly recommend this tool
Pros
Fits 4-5 inch angle grinder with 38-50mm front cap: Fits Bosch, Makita, Kress, AEG, Metabo, Milwaukee etc. 80% Major Brand 4"/4.5"/5" Angle Bulgarian, but not recommended for angle grinders with a light lock and does not fit the HILTI grinder