Platte River 913343, Bits, Drill And Boring, Plug & Tenon, 7/8" Rts-2000 Plug Cutter Cut clean plugs in a variety of wood. Specifications: Cut Diameter=7/8 in, Cut Length=7/8 in, Material=STAINLESS STEEL Specifications: Overall Length=2-7/16 in, Shank Diameter=1/2 in