This invention the attachment and the drive shaft (6) has the tool holder assembly body for revolution drive of the dentistry equipment around and the assembly body for operation transmission in regard to the hand piece for dentistry of the type which includes the mechanical element, the aforementioned mechanical element the substance (2) and the steering wheel (3) the head (4) is mounted inside, the body (2) is formed the single component or cover (8) from, one part the steering wheel and the other part forms the head, the 1st housing which the head has one opening (7) at least (26) it features that it has.本発明は、機械的な要素を含むタイプの歯科用ハンドピースに関し、アタッチメントと駆動軸(6)周りの歯科用具の回転駆動用のツールホルダ組立体及び動作伝達用の組立体を備え、前記機械的な要素は本体(2)とハンドル(3)のヘッド(4)内部にマウントされ、ボディー(2)は単一の部材あるいは外被(8)から形成され、一部分がハンドル、他の部分がヘッドを構成し、ヘッドが少なくとも一つの開口(7)を有する第1のハウジング(26)を備えることを特徴とする。
