Device for the extraction of machining dust

A machining machine tool holder assembly comprising:

• a tool holder, the tool holder comprising a first section having a cavity for receiving a tool therein and a second section configured to connect the tool holder assembly to a spindle of a milling machine;
• a Venturi mechanism coupled to the first section of the tool holder via a bearing;
• and
• a nozzle section coupled to the Venturi mechanism, the nozzle section having a first opening at a first end thereof and a second opening at a second end thereof, the first end being opposite the second end;
• wherein said Venturi mechanism is in fluid communication with said second opening of the nozzle and is configured to facilitate the suction of machining dust through said second opening into the nozzle section and through the Venturi mechanism, and
• an end of the first section of the tool holder is housed within the nozzle section, and said second opening of the nozzle section is configured to receive a cutting tool therethrough.