Advantages Rust resistant coating process stable three jaw chuck structure fine workmanship sturdy and practical jaws excellent craftsmanship for maximizing the lifespan Applications The fourth axis can be used for three dimensional processing of cylinders bent pipes and circles The fourth axis engraving machine can be used for carving spirals scars bamboo joints etc Unlock Precision 4th Axis CNC Rotary Module Kit for TTC450Maximum clamping diameter for round cylinders 60mmMinimum clamping diameter for round cylinders 4mmMaximum clamping length for round cylinders Depending on the machine s working length Distance occupied by the chuck kit and top pin kit needs to be subtracted Minimum clamping length for round cylinders Depending on the machine s tool head Chuck reduction ratio 4 1Center height 50mm Total height 76 5mm