The DEWALT DWE46152 5" Surface Grinding Dust Shroud is designed to contain the dust in your work area when working on concrete grinding. This unit features a flush grinding door which allows dust collection for flush edge grinding. The universal vacuum hose connection locks onto the tool with a twist and click eliminating the use of tape to secure the hose to the shroud. Compatible with DEWALT Universal Connector DWV9000, sold separately