DEWALT DW6188 9-Piece Router Template Guide Set Nine-piece, precision-machined steel template guide set for enhanced accuracy and durability Universal standard size for all DEWALT routers as well as any router that accepts a standard 1-3/16-inch outside diameter template guide Includes (5/16-inch OD by 1/4-inch ID by 5/32-inch L), (3/8-inch OD by 9/32-inch ID by 5/16-inch L) Seven included template guides measure (od by id by L in-Inch): 5/16 by 1/4 by 5/32, 3/8 by 9/32 by 5/16, 7/16 by 11/32 by 5/32, 1/2 by 13/32 by 5/32, 5/8 by 17/32 by 5/8, 3/4 by 21/32 by 9/16, and 51/64 by 5/8 by 9/16. Kit also includes two lock nuts