LuMa Beast Premium is a diamond grinding disc designed for extremely hard materials, featuring 7mm thick triangular segments. Beast Premium is the ideal solution when you need to remove hard materials quickly. Beast Premium is available in 125mm diameter, compatible with the most common concrete grinders such as Bosch, Makita, Milwaukee… Beast Premium is also available in 130mm diameter with a 25mm bore, compatible with the Festool RG 130 concrete grinder.