Platte River 913378, Bits, Drill And Boring, Plug & Tenon, 1-1/2" Rts-2000 Plug Cutter Cut clean plugs in a variety of wood. Specifications: Cut Diameter=1-1/2 in, Cut Length=1-3/32 in, Material=STAINLESS STEEL Specifications: Overall Length=2-13/16 in, Shank Diameter=1/2 in