... instrument, especially for CNC machine. Ball Screw/ Lead Screw :Description of Model Code :SFUR02505B2DFC71000P0S F U R 025 05 B2 D ... accuracy, repeat positioning accuracy, shiffness, lead length, hole diameter of screw cap and so on.As a professional manufacture, we ... according to customers specific requirement. And you are assured of our first-rate products with best, prompt service always. ...