| 摘要 |
A rotary tool bit case suitable for both transport and storage of a multiplicity of such bits in a plurality of shank sizes without disorganization by inversion or vibration includes a double-wall molded thermoplastic casement base and hinged cover with a thick, shank aperture plate removably secured within the interior volume of the casement enclosure. Shank apertures within the plate are formed with a shank clearance of less than 3% of the plate thickness.
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