BORING DRILL AND DRILL SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a boring drill and a drill system capable of accurately forming a drill hole with a desired drill hole depth, and cutting out an approximately columnar bone piece or an embedded implant together with a surrounding bone.

SOLUTION: The drill includes a shaft body and a cylindrical body that are configured to be attached to and removed from each other. The shaft body includes a first shaft having a first connection for connection to a drive head, and a second shaft having a second connection for connection to the cylindrical body. The cylindrical body includes a cylindrical body having a first through-hole for journaling the second shaft and a second through-hole axially communicating with the first through-hole; a third connection for removable connection to the second connection; and a serrated blade formed at an opening at the end of the cylindrical body. The interval between the end of the second shaft and the end of the serrated blade defines the depth of the drill hole formed by the serrated blade.

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