4th Axis or 4th & 5th Axes: The 4th Rotary Axis option comes complete with one collet chuck (inside diameter from 3mm to 20mm), chuck wrenches and operational software. The servo-controlled axis has a resolution of 64,000 steps per revolution. The axis can be augmented with a standard lathe chuck or custom fixture for larger diameter parts. The dimensions are 8”(w) x 4”(h) x 6.5”(d) Our tilting 5th Axis Rotary Indexer with manual collet closer comes with a programmable servo control and CNC interface cables.