MLCS Tongue & Groove V-Notch Router Bit 2-Bit Set Top Quality Carbide-tipped Bits 1/2" Shank Produce Interlocking Tongue and Groove with V-Groove on the Face Ideal for Paneling and Flooring Works with stock 5/8" to 1-1/8" Cuts a 1/4" High x 3/8" Deep Tongue and Groove.