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, b rigidity etc. It is satisfactory accessories in place of square turrets. Specifications: Material: steel Color: black Lathe swing: 6-9 #34; 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 #34; cuniform type tool post 250-001: 1/2 #34; turning tool holder 250-002: 1/2 #34; boring, turning tool holder 250-004: 3/8 #34; and 1/2 #34; heavy duty boring bar holder 250-007: 1/2 #34; parting blade tool holder 250-010: 1/2 #34; 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