This choke is necessary for drilling granite, porcelain stoneware and gres with diamond crowns MINIGRES with a diameter of 6, 8, 10, 12 and 14 mm. (item 04986, 04982, 04983, 04998, 04936), which are used only with water cooling. The socket is inserted into the electric drill, the diamond crown itself is screwed into it, and water is fed through the special adaptation to the crown.
It is mounted on an electric drill.
It allows horizontal and vertical drilling of gres, granite and granite with MINIGRES diamond bits Ø 6, 8, 10, 12 and 14 mm.