Oldham 8005224 8-Inch 12T Carbide General Purpose Stacked Dado Set Precision-sharpened industrial-grade carbide tips for smooth clean cutting; dead-flat plate for straight, accurate cuts Anti-kick tooth design for added safety-reduces blade from climbing into workpiece Cuts smooth dadoes and grooves in these widths: 1/4-inch, 5/16-inch, 3/8-inch ,7/16-inch, 1/2-inch, 9/16-inch, 5/8-inch, 11/16-inch, 3/4-inch, 13/16-inch Used in wood, wood products and plastics, including soft-wood, hardwood, plywood, wood composites and melamine Fits most 8-inch, 9-inch, 10-inch, and 12-inch full-size table saws and radial arm saws with a 5/8-inch arbor