The patent feature on this knife blade is having knife sharpening guide lines etched or inked onto the length of the knife blade's surface as a proper, linear guide for maintaining the best knife sharpening pattern for a specific knife shape. The etch lines on the surface of the knife blade will be placed at 1/8'' to 1/16'' intervals, but will vary depending on blade size. We are seeking a patent on the lines, themselves, delineating knife sharpening wear patterns on a knife blade surface that best serve the food processing industry. The etched guidelines and the blade's length will provide a format to be followed by the knife sharpener, for consistently achieving a productive, safe, knife blade shape. This feature will be most specifically used on high production knives within the food processing industry. Knives that are used in high-production, food processing plants are sharpened at least twice a day. Maintaining and controlling proper blade shapes, using these guidelines, will allow the properly shaped knife blade to track well through a cut, controlling the cut to maximize yields, for the life of the knife. Maintaining a proper blade shape, especially at the tip, will keep the knife tip from getting too thin and dangerous. Thin tips break most readily. The guidelines will also offer a guide for a knife life expectancy to be achieved. Once a knife wears down to a certain size, it becomes unproductive. The last of these etched lines on the upper part of the blade's surface will be the indicator that the end of the knife's life has been reached and the knife blade is no longer productive for proper, high-yield, on-line cutting. Using the etched blade guidelines, management will be able to create their own guideline on how long they want a knife blade to last, in terms of time of productive service. The knife sharpener will be able to gauge the amount of sharpening pressure and sharpening strokes needed to achieve an extended, productive life on a knife blade, in terms of time of productive service. These guidelines are obvious improvements to the unskilled or skilled user.