High Precision CAT CNC pull stud has 45 degrees, 60 degrees and 90 degrees, which belongs to American thread pull screw. Mainly used in CNC numerical control machine tool 50 taper handle. CNC tool holder pull stud is made of high quality steel 20CrMnTi. CNC pull stud According to different uses, the hardness HRC is between 48 degrees and 56 degrees. CNC pull stud The overall compact and stable, special rust-proof material, overall carburizing treatment, compared with the ordinary tool holder pull nail increased by 1 times the wear resistance and tensile resistance. CNC pull stud The overall performance is better.  CNC pull stud Accuracy: less than 0.005mm.