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Repair your old or damaged SchoolPro electric pencil sharpener with a replacement cutter from X-ACTO. Our replacement cutter carrier set features carbon and steel sharpened blades, ensuring your sharpener will operate at a higher level of performance. The replacement cutter carrier set includes the cutter, carrier assembly, gear rack and carrier drive gear. This set can repair X-ACTO SchoolPro pencil sharpeners: model numbers 1670, 1671, 1672, 1677, and 1678.