The quick change tool post is a main accessory of the machine tool, it consists of tool post and many kinds of tool holders, according to the processing requirements of the workpieces, corresponding tool holders are selected to finish cylindrical facing, end facing, cutting, drilling, reaming, boring as well as other processing. It realizes to mount tool outside the machine tool, it has exchange tool quickly, high accuracy, strong rigidity etc. It is satisfactory accessories in place of square turrets. Features: Accuracy: designed to ensure repetitive accuracy. Quickly and easily installed on a lathe engine, bench or tower for a wide range of operations. Size stud M-10 and perfect for most mini machines, although modifications may be necessary for some machines (sleeve or a new center rod for a smaller hole may be necessary). Reduce installation time: instant change from one operation to another. Fully interchangeable with Aloris, Dorian, Phase II, Yuasa and most of the other components of the manufacturer. All working parts are accurate and hardened. Completely sealed for maintenance-free work. Rotate: the unequaled rigidity of this pillar of tools and holders ensures smoother turning without chatter or vibration. Drilling: allows you to drill with the power of your carriage, instead of manual work or tailstock. Hard cuniform tool post design, easily centered. Specifications: Material: steel Color: black Lathe swing: 6-9" Application: turning tool Usage: CNC machine tool accessories Type: 250-000, 250-001, 250-002, 250-004, 250-007, 250-010 (optional) Capacity of the tool: 250-000: 1/2" cuniform type tool post 250-001: 1/2" turning tool holder 250-002: 1/2" boring, turning tool holder 250-004: 3/8" and 1/2" heavy duty boring bar holder 250-007: 1/2" parting blade tool holder 250-010: 1/2" knurling and turning tool holder Package size: 145 * 80 * 55mm / 5.7 * 3.1 * 2.2in Package weight: 250-000: 739g / 1.6lb 250-001: 159g / 5.6ounce 250-002: 157g / 5.5ounce 250-004: 367g / 12.9ounce 250-007: 243g / 8.6ounce 250-010: 271g / 9.6ounce Usages: 250-001: quick tool change holder for lathe cutting tool bits, range up to 1/2 inch. This holder is suitable for working with cuniform type 250-000. 250-002: V groove hold round shank boring bars and tools as well as square tool bits to machine end face, external, cutting, boring, etc. 250-004: use straight shank drilling and reaming, boring, etc. Equipped with a split bushing to accommodate a boring bar of small diameter. It grips with extreme rigidity. Cuts smoothly without chatter. 250-007: use square tool to make slot cut off etc. 250-010: it may be used for knurling, if square tool is used, it may process end face, extered cutting, boring etc. Packing List: 1 * Tool Post / Tool Holder