X-ACTO PowerHouse electric sharpener is one of the most powerful electric pencil sharpeners available for the money. Offers power and precision that can handle even the toughest wooden pencils while remaining gentle enough for composites and recycled wood pencils. Great for hard-to-sharpen composite and recycled pencils, as well as standard-size wood pencils. Quiet operation. Pencil-Saver prevents oversharpening and Auto-Reset eliminates motor burnout. Heavy-duty, high-performance motor designed for durability, with precision, carbon-steel cutting blades. 2-year limited warranty. Bold, compact styling and black design is appropriate for any workspace. Boston X-ACTO #1799 PowerHouse commercial-grade electric pencil sharpener.