Vacuums are only good if you can route dust to them from the source. Dustless Technologies manufactures a variety of shrouds just for this purpose. These shrouds are available for block and paver cutting as well as for grinding and tuck pointing operations. We carry these professional masonry tools at our Ace Hardware Store at the Yardville location. We also have dust shrouds for 5" & 7" grinders.
The Dust Buddie for Flatwork in action:
The Dustbull in Action: