These Makita dust collectors are designed to fit Makita hand-held electric grinders and are ideal for concrete finishing, planing, paint or surface coating removal, blending concrete seams and more. The Makita dust shroud features a spring-loaded suspension system that keeps the shroud flush to the surface during movement and compensates for grinding wheel wear. The dust shroud has a removable edge piece for surface work close to walls and corners. It also has soft brushes that help contain the dust and allow for smooth movement over the work surface. The outer extraction port is 1-7/16" O.D. and will adapt to most vacuum hoses. The dust shroud is ideal for concrete finishing, concrete material removal and paint or surface coating removal.