Features: Use of multiple lathe toolholders form an artificial tool magazine, you can repeat to replace the toolholder. Each tool holder can be rotated multiple angle of 360°, operations with extension units, can be processed various angles workpiece. Toolholder for the adjusting screw nut and tool, adjust installation height, easy to operate, shortening the time of loading knife. Replace the tool holder with high positioning accuracy, the surface quality of machined parts and precision improved. Each changing tool only takes a few seconds, fine quality workmanship for high stability processing, made of aluminum alloy. Achieve installing tool holder at the outside of lathe machine, the tool clip is mounted on the tool holder through the dovetail groove with rapid change of tool post, high positioning accuracy and strong rigidity. Perfect product to replace the traditional four-way tool post and realize fast turning.