Universal mount - all 4-1/2-Inch - 5-Inch Makita Grinders * Soft brushes prevent dust from escaping and help move the tool over the surface * 4 spring suspension system keeps shroud flush with surface during movement and compensates for blade wear * Removable edge piece allows surface work flush to other objects * Standard hose fitting will work with most vacuum systems OD 1-7/16-Inch