Patent ID: 8684177

Claim:
A stopper housing case for housing cylindrical stoppers that each fit from a blade edge side of a blade part of a drill for boring a dental implant fixture embedding hole at a jawbone, thereby defining a drill blade entering depth of the blade part of the drill, the stoppers each locking, via a spring-like locking part, to a flange part projected from a shank part of the drill, said case comprising: concave parts in parallel to one another, each capable of housing one of the stoppers, a flange part insertion path at one side of each concave part, a projection on an inner face of each flange part insertion path configured to engage with a concave groove on an outer peripheral face of a stopper, a drill blade part insertion path at a side of each of the concave parts opposite to the one side, the insertion path capable of housing the blade part of the drill, slide guide parts on side faces of the stopper housing case in parallel with the drill blade part insertion paths, and a cap configured to slide-engage with the slide guide parts and prevent the stoppers from falling out of the concave parts, the cap comprising guide parts on side parts of an inner face of the cap, wherein the stopper housing case comprises a hard plastic.