Amana Tool 53402 Slotting Cutter Assembly 3 Wing x 1-7/8 Dia x 5/64 Cut Height x 1/4 Inch Shank Router Bit Groove edges for T-moldings, 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 arbor. Use with all handheld and table mounted routers.