Precision CNC Milling DIN Pull Stud Tool Stud 

High speed high accuracy high durability DIN69872A/B Pull Stud  Brief introduction DIN Retention Knob Pull Stud, tool stud. Pull studs of minor quality not only decrease the performance of the machine,they are even a safety risk. A breaking pull stud might cause severe damage on machine and workpiece and even injuries on persons. Pull stud is mainly used for connect the tool spindle and tool holder. We have many kinds of pull stud.Such as BT(MAS403) PULL STUD,DIN69872A/B Pull Stud,ISO7388A/B Pull Stud,CAT40/50Pull Stud,JIS B6339 Pull Stud,SR Pull Stud,Pull Stud for carving machine,Pull Stud for morse taper without tang,BT-CAT Inch Thread Pull Stud,CAT-JT metric thread Pull Stud , Upgraded Pull Sutd CAT-MAZAK and so on. Comprehensive features of DIN69872A/B Pull Stud 1.Material:20CrMnTi. 2.Carbon depth:>0.8. 3.Head hardness 54-57HRC 4.Thread hardness is a little low:30-40HRC(Protect shank thread,core hardnes…