Platte River 913350, Bits, Drill And Boring, Plug & Tenon, 1" Rts-2000 Plug Cutter Cut clean plugs in a variety of wood. Specifications: Cut Diameter=1 in, Cut Length=15/16 in, Material=STAINLESS STEEL Specifications: Overall Length=2-1/2 in, Shank Diameter=1/2 in