China AccTek 3d cnc router machine mini 6090 4 axis cnc router tools for wood aluminum copper>> Photos of mini cnc router machine 6090 with rotary axis>> Features of mini cnc router machine 6090 with rotary axis1). The gantry move stable and the ball screw with high precision.2). Use air-cooling spindle ,suitable for various kinds of material (metal ,non-metal,stone etc. ). The water cooling spindle adopt water cycle to cooling the spindle ,so the cooling effect is excellent .3). Tool calibra...