Product Description ------------------- The Bosch 18SG-5E Surface Grinding Dust-Extraction Guard works with the Bosch 4-1/2 In. and 5 In. angle grinders. The guard and grinder can be part of the end-to-end Bosch PRO+GUARD™ Protection System, along with attachments, dust extractor and respiration protection (to be used as a basic summary; always use products in accordance with the ownerʼs manual and OSHA Rule 1926.1153 Table 1). This attachment is tool free, with a removable nose piece and a replaceable brush ring for low cost maintenance. From the Manufacturer --------------------- Bosch concrete surfacing attachments with dust collection and concrete cutting attachments with dust collection specialize in reducing a job's clean-up time and decreasing health hazards on the jobsite. They make every application safer and more efficient.