| 摘要 |
Dental tool comprising a handle (1), which handle is equipped with an extended recess (3) in its hold, a working part (2) adapted to be inserted and held in the handle (1), the recess (3) being straight and essentially elliptic or in the shape of a polygon, and in its radial direction having an encircling resilient wall, the extended part of the working part being insertable in the handle at compression of the wall with a simultaneously applied pushing force on the working part, the working part being adapted to be held immovable in the handle by frictional force from the encircling wall, and being removeable from the handle by compression of the wall in the same manner. |
