DEWALT DW4706 4-1/2IN BACKING FLANGE
The DeWalt DW4706 4-1/2-Inch Backing Flange is designed for use with the DW402, DW402G, and DW818 DeWalt grinders. If you want to use dry diamond or flat, cut-off wheels with your grinder, this handy item provides the extra support and surface material that you need. The solid-metal backing flange can be used with 4-1/2-inch grinders that have a 5/8-by-11-inch arbor.

DEWALT DW4706 4-1/2-Inch Backing Flange for the DW402, DW402G, and DW818