POWERTEC 128051 15-Inch by 1-Inch by 1/8-Inch HSS Planer Knives, Set of 3 Replacement blades for Delta, Jet, Grizzly, Powermatic, Woodtek, and most 15-Inch Planers Made of High Speed Steel for longer cutting life Single edge A set of three; Plastic case packaging Blade dimension: 15-Inch x 1-Inch x 1/8-Inch