Abstract: A tool holder for collet chucks, wherein a clamping rotor for applying an axial force to a collet chuck is provided. The clamping rotor, including the two axial bearings of the clamping rotor, are accommodated in a tool holder main part, which is connected to a collet chuck receiving body that receives the collet chuck. In order to captively support the clamping rotor in the main part, a bearing seat element is screwed into the main part, said bearing seat element delimiting a receiving chamber for the clamping rotor towards the collet chuck receiving element. Thus, the clamping rotor is enclosed and held in the main part independently of the collet chuck receiving body. This creates new possibilities for the maintenance and adaptation of the tool holder under different conditions, and in particular the force flow emanating from the clamping rotor during a clamping process is kept away from the collet chuck receiving body, thereby improving the precision of the tool holder.

Abstract: A tool holder for collet chucks, wherein a-a clamping rotor for applying an axial force to a collet chuck is provided. The clamping rotor, including the two axial bearings of the clamping rotor, are accommodated in a tool holder main part, which is connected to a collet chuck receiving body that receives the collet chuck. In order to captively support the clamping rotor in the main part, a bearing seat element is screwed into the main part, said bearing seat element delimiting a receiving chamber for the clamping rotor towards the collet chuck receiving element. Thus, the clamping rotor is enclosed and held in the main part independently of the collet chuck receiving body. This creates new possibilities for the maintenance and adaptation of the tool holder under different conditions, and in particular the force flow emanating from the clamping rotor during a clamping process is kept away from the collet chuck receiving body, thereby improving the precision of the tool holder.

Abstract: In a chuck for medical applications, including a housing having a passage extending axially therethrough with clamping elements movable supported in the housing together with a drive structure for moving the clamping element into and out of a clamping position for the engagement and release of a rotating tool, a space is provided around the drive structure for moving the clamping elements and flushing passages are provided for flushing out the space around the drive structure and, in the process, cleaning all the components of the chuck.

Abstract: In a chuck for medical applications, including a housing having a passage extending axially therethrough with clamping elements movable supported in the housing together with a drive structure for moving the clamping element into and out of a clamping position for the engagement and release of a rotating tool, a space is provided around the drive structure for moving the clamping elements and flushing passages are provided for flushing out the space around the drive structure and, in the process, cleaning all the components of the chuck.

Abstract: A hand held power tool has a working disc and a working sheet held on the working disc by a burdock connection. The working disc has a burdock surface. An intermediate pad is held on the burdock surface of the grinding disc. The intermediate pad has a first side provided with a velour coating and releasably connectable with the burdock surface of the grinding working disc and a second side releasably connectable with the working sheet.