This set will give a higher degree of severity of the knife of any type. The holding blade device can be configured for rough working blade cutlass or a subtle cutting edge of the knife loin. Moreover, with its help you can easily change the angle of sharpening, if you think that the knife needs such refinement. Three diamond bar are made of single-crystal diamond and well take even very hard steel. The most rough bar to repair a major damage on the blade, the smallest quickly bring the blade to unsurpassed sharpness.