Irwin Carpenters Pencil Sharpener is designed to use 50% less pencil per sharpening cycle, making it an efficient choice for carpenters and professionals who rely on precise marking tools. It features a blade that is 20% harder for longer life, ensuring durability and consistent performance. The sharpener includes an integrated emery board for fine point filing, allowing you to achieve the tip for detailed work. Its narrowing sharpening angle produces a broader, more durable point that reduces lead breaking, enhancing the overall sharpening experience. Model Number: 233250