A3 IRON STONE is a precision milling machine with all the main items to do milling on all materials, attachments assembly and surveying. Equipped with tri-dimensional movable arm with vertical stop and guide to realize holes, channels, chamfers and interlocks. Furnished with electrical micro motor (with complete porta-chuck nuts ø 2,35 3 1,6 mm), digital electronic feeder with adjustable speed, electrical pedal, lockable model holder, spotlight and incorporated mandrel for attachments assembly and surveying. A3 IRON STONE is also equipped with a set of accessories for the finishing of primary elements made of ceramic materials (sintered zirconia, zirconia implants, alumina, metal free all-ceramic). A turbine with water cooling, to avoid micro-fissures in the ceramic materials, and an innovative water collect system allow to work safely protecting all the elements of the machine. A3 IRON STONE can be also supplied with just a pre-arrangement to adopt each kind of laboratory turbine (upon dimensional compatibility check).