The 5- and 7-in. dustless grinder shrouds from Metabo are designed for use with vacuum systems. The convertible shrouds help protect users from silica dust exposure in accordance with OSHA regulations. The 5-in. shroud allows for use of 4-, 4 1/2- and 5-in. diamond cup wheels and fits Metabo's W8, W11 and WE-14 series compact angle grinders. The 7-in. shroud fits Metabo's large angle grinders. Molded vacuum ports allow for vacuum connections of 2.5 in. internally or 2 3/4 in. externally.