Makita dust collecting wheel guard for cup type diamond wheel suits GA5021. Features: The new Dust Shroud is engineered for improved dust containment while operating Makita 115mm and 125mm grinders A key point of difference from competitor shrouds is the 3-spring suspension system that keeps the shroud flush with the surface during movement and compensates for cup-wheel wear The soft brushes are engineered to prevent dust from escaping, and help move the tool more easily over the surface An added convenience feature is the removable edge piece, which allows for surface work flush to other objects The guard has a direct-connection dust port (outer diameter: 38mm) for use with most commercial vacuum hoses