Removable structured segment e.g. for dental hand-set, has shank which indicates deadweight area and segment has area which cooperates with deadweight area of shaft

摘要

The segment (6', 6'') for torque transfer to a dental rotary tool (2). The tool has a shank (8) which indicates a deadweight area (10). The segment has an area which cooperates with the deadweight area of the shaft (8). An independent claim is included for a dental hand piece.