USI-4392, Set of 4 Professional Plug Cutters with Stand, 1/4, 3/8, 1/2, 5/8 Set Contains 4 Cutter Bits with 3/8" Shanks and Wood Stand Cutters Create Wood Plugs 7/8" Long in the following widths: 1/4", 3/8", 1/2", 5/8"