Groove edges for Molding, splines or biscuits, and other purposes. Rout tongue-and-groove joinery. Slotting Cutters are available with either 2-wing or 3-Wing cutters. Each assembly includes a cutter, bearing for a 1/2" Deep cut, and either a 1/4"-, 3/8"-, or 1/2"-shank Arbor. Use in a handheld or table-mounted router. All assemblies include Cutter, arbor and ball bearing, #53309, diameter (D) 1-7/8, cutting Height (B) 7/32, shank (D) 1/4, overall length (L) 2-3/8, C 1/2, # Wings 2, 53309 slotting cutter assembly 2 Wing x 1-7/8 dia x 7/32 x 1/4 inch Shank