HERZO Universal Surface Grinding Dust Shroud for Angle Grinders 115/125mmKit fits 90% Main Brands with a 4. 5" 5" Angle Grinder Vacuum Dust Extractor is compatible with angle grinder front cap size from 48mm to 51mm Removable edge piece allows surface work flush to other objects. Flush grinding door which allows dust collection for flush edge grinding Soft brushes prevent dust from escaping and help move the tool over the surface Ideal for concrete finishing, concrete material removal and paint or surface coating removal