Platte River 951940, Bits, Drill And Boring, Plug & Tenon, 1-1/8" Self Ejecting Plug Cutter Cut smooth and hassle free plugs. Specifications: Cut Diameter=1-1/8 in, Cut Length=1 in, Material=STAINLESS STEEL Specifications: Overall Length=3-3/8 in, Shank Diameter=1/2 in