Paper Cutter Knife Sharpening: This knife sharpening service is vital for keeping your paper cutter operating at an optimum level. Over time, blades in a paper cutter or disintegrator get worn down from use. Disintegrators are especially prone to this, as they are capable of handling soft metals which will dull blades more quickly than paper. Replacing knives can get quite costly, so a blade sharpening service can be a welcome alternative! cutting knife can be removed from machine and sent into a knife sharpening facility for a fraction of price of getting a brand new knife, and it will be just as sharp!