INTRODUCTION: These CAT40 pull studs/retention knobs fit Haas machines. Knob angle 45°, knob diameter 0.590" , and neck diameter 0.394" , thread size 5/8"-11 with a through-hole for through-tool coolant.
HIGH QUALITY: Adopted high quality low carbon alloy steel 20CrMnTi with heat treatment HRC53-60. Resistant to wear and durable which fits well on your CNC Machine and improve your working Efficiency.
EQUISITE WORKMANSHIP: Processing thread after carburizing and quenching makes thread accurate which improves corrosion resistance and be more durable, highly extending the service life and reduce loss of this kind of pull stud.
HIGH PRECISION: Mass production. And in order to improve efficiency and reduce wear resistence, all of our pull studs have passed serious test before sending from our factory.
CARING SERVICE: Your pull stud retention knob have passed serious test such as nut wear test, salt spary test before sending to you. We are the manufacture of these machined tools since 2004, and have set up professional centers. If you have any problems, pls pm us via Amazon, we will try our best to make each customer satisfied. If you need other type of pull stud, pls pm us directly.