| 摘要 |
Disclosed is an index case for sets of drills and the like for storing, organizing, transporting, and displaying sets of elongated objects which permits selection of one of the set while simultaneously positively retaining unselected objects within the case. The index case comprises a body having a plurality of spaced apart elongated chambers aligned along several patterns of concentrically spaced rings, each ring of chambers defining a group. A rotatable cover plate has several angularly spaced apart apertures therethrough and rotatable selector plate has several angularly aligned apertures therethrough, each aperture being aligned with a group. The cover and selector are cooperable with the case body such that rotating the selector selects a specific group whereas rotating the selector and the cover together selects a specific chamber within the group for permitting objects to be inserted and extracted, all other chambers being blocked by the combined solid portions of the selector and cover plates.
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