Variable-Diameter Mounts for Accurate Collet Storage

The patent applies local quality by making each receiving recess have a different size corresponding to specific collet sizes. The first receiving recess is larger for first-size collets, while the second receiving recess is smaller for second-size collets. This local differentiation in recess sizes enables direct visual identification of collet sizes without relying on worn markings, thus resolving the contradiction between manufacturing simplicity and size identification.

The patent segments the storage box into multiple independent receiving recesses of different sizes and configurations. Each recess can accommodate specific collet sizes, allowing the storage box to adapt to varying storage needs without requiring multiple separate devices. This segmentation enables the single storage box to handle diverse collet storage requirements while maintaining structural simplicity.

The patent creates a copy of the size identification function by transferring size indicators from the collet surfaces to the storage box structure itself. Instead of relying on markings on collets that wear off, the storage box incorporates receiving recesses of different sizes that visually indicate which collet sizes should be stored where. This structural copying of size information provides durable, long-lasting identification that does not wear off.