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The hone creates the necessary crosshatch pattern on the cylinder walls through the use of dedicated, application-specific stones. The bores are rough-honed with a harsher grit, then the stones are changed to a finer and finer grade until the desired crosshatch pattern is achieved. The stone in the far right portion of the photo is called a "soft hone", and resembles a brush. It produces a finish called a plateau hone. Auto manufacturers have used this type of finish for the past ten years, this is one of the reasons modern engines have such long life spans relative to their classic predecessors.