Sharpeners Are the cutters on my sharpener replaceable? There are replacement cutters available only for the Model 41 High Volume Commercial Electric Sharpener (item #1606). The part number is #1827. Any store that sells our products can special order a set for you.. Can I use my X-Acto sharpener for sharpening colored pencils? Colored pencils leave a residue that impairs the cutting action of the cutters and will shorten the useful life of the sharpener.