· The 4 1/2inch to 5inch Surface Grinding Dust Shroud Kit features the DWE43131 13 Amp grinder and DWE46152 dust shroud. The 13 Amp grinder is part of the PERFORM PROTECT line of products with the antirotation E CLUTCH system. The E CLUTCH system helps protect the user in bind up situations by shutting down the tool. The 5inch surface grinding dust shroud features a .