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The pencil sharpener uses a vacuum mount and installs easily on any nonporous surface. Its helical cutter sharpens pencils with precision, while its colorfulSome people prefer to do things by hand. Most manual pencil sharpeners work by turning a crank, which rotates blades around inserted pencil heads. A pencil sharpener is a tool for sharpening a pencil's writing point by shaving away its worn surface. Pencil sharpeners may be operated manually or by an Hand-operated sharpeners work when the pencil is turned manually toward the razor, and the wood and graphite are shaved off the sides. Picture. The front plate of the sharpener pulls forward and locks in place. You then pinch the gripping mechanism and insert your pencil until you feel resistance. 3. Turn the handle clockwise to sharpen the pencil. The auto stop feature will stop sharpening the pencil when it has reached the preferred sharpness, and the