The MILWAUKEE® 49-40-6120 7" / 9" Cutting Dust Shroud provides users with a solution for the regulation on respirable crystalline silica dust (29 CFR 1926.1153). The 49-40-6120 is optimized for cutting applications with both AC and DC MILWAUKEE® large angle grinders. Attach to the MILWAUKEE® 8960-20 8 Gallon Dust Extractor for Objective Data Compliance.