Use for coarse grinding or rasping to achieve aggressive material removal over large areas. Removes hardened adhesives, thin set, masonry, and wood. Great for removing mortar underneath broken tiles. The arbor on this blade is universal and compatible with Fein MultiMaster , Rockwell Sonicrafter , Craftsman Multi-Tool , Bosch Multi-X , Dremel Multi-Max , and Chicago Multi-Tool . 3" wide.