Metabo's Dust Director tuck point guard for dust-free tuck pointing with diamond blades attaches to heavy-duty vacuum cleaners as well as most Metabo small angle grinders. The attachment swivels as it approaches an inside corner to maintain and continue cutting depth and dust collection. The Dust Director allows for up to 1 3/16-in. depth of cut and accepts 4- 4.5-, 5- and 6-in. diameter diamond blades. It also features a 2-in. port and requires vacuums to have at least 120 cfm and a water lift capacity of 90 in. or more.