Professional Woodworker 46919 Frost Bit Set (16 Piece), 1/4"-2 1/8" 1/4 inch, 3/8 inch, 1/2 inch 5/8 inch, 3/4 inch, 7/8 inch 1 inch, 1-1/8 inch, 1-1/4 inch 1-3/8 inch, 1-1/3 inch,1-5/8 inch 1-3/4 inch, 1-7/8 inch, 2 inch, 2-1/8 inch