Each part of a small ‘prism’ or ‘pocket’ pencil sharpener is cut, shaped, stamped, baked, bathed, polished, and assembled with such specifically made machinery, traveling through feeds and funnels along the way. See how the steel blades are finished and attached to the magnesium alloy sharperner body, all super up close, in this episode of How It’s Made: Pencil Sharpeners from the Science Channel.

Prism pencil sharpeners make fan shaped shavings like those in Marta Altés’ experiments with pencil shavings, an inspiration.

Watch these videos next: How pencils are made at the Derwent Pencil Factory, Doro Ottermann’s Magic Artbox Animations, How It’s Made: Matches, and How It’s Made: Balloons.

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