page_title: Pencil sharpener
section_title: Other systems
hierarchical_section_title: Pencil sharpener / Manual sharpeners / Other systems
caption_attribution_description: Deutsch: Bleistiftschärf-Maschine Jupiter
context_page_description: 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 electric motor. It is common for many sharpeners to have a casing around them, which can be removed for emptying the pencil shavings debris into a trash bin.
context_section_description: Some older models like the 1897 German Jupiter 1 used reversible rotary cutter-disks with cutting edges radiating from the center on each side. These were high-end models, quite large and expensive. Others simply used abrasives like sandpaper. In some cases an abrasive was used to shape the graphite core, while the wood was cut some other way.
caption: Jupiter 1 with rotary disk cutters
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