Features: 1. Accuracy -designed to repetitive accuracy. 2. Quickly and easily installed on a lathe engine, bench or tower for a wide range of operations. 3. Size Stud M10 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.) 4. Reduce installation time - instant change from one operation to another. 5. Fully interchangeable with Aloris, Dorian, Phase II, and most of the other components of the manufacturer. 6. All working parts are accuracy and hardened. 7. Completely sealed for maintenance-free work. 8. Rotate: The unequaled rigidity of this pillar of tools and holders ensures smoother turning without chatter or vibration. 9. Drilling: the set allows you to drill with the power of your carriage, instead of manual work or tailstock. 10. Hard cuniform Tool post design, easily centered. Usages: 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. -250-000 mini-cuniform type quick change tool post and tool holders fit for woodworking lathe tools. The quick change tool post is a main accessory of the machine tool, it is consist of tool post and many kinds of tool holders, according to the processing requirements of the workpieces, correspording tool holders are 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 , rigidity strong etc. It is satisfactory accessories in place of square turrets. Specification: Model : Tool post: 250-000 Tool holder: 250-000 Type : cuniform type Material : Steel Color : Black Article : 250-000 cuniform type Quick Change Tool Kits Application : Turning Tool Usage : CNC Machine Tool Accessories Capacity of the tool : 250-000: 1/2 inch cuniform Type Tool Post Package Included: 1 x Quick change tool holder Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.