OTT Retention Knob

DIN2080 Pull Stud DIN2080 40 DIN2080 50

Item No.: 3
Made from fine alloy steel 20CrMnTi. Pass hardness and anti-crack test. Custom design accepted.
Kindly Note: Please make sure the Retention Knob you choose is the right one for your machine. Using wrong Retention Knob can cause damage to your machine.

Product Features

1. Each pull stud is tested thoroughly which ensures the quality of the pull stud

2. Made from fine alloy steel 20CrMnTi with treatment to HRC 53-57

3. Hard outside and soft inside, with higher wear resistance and better toughness

4. High quality black oxide ensures long pull stud life and a non-rusting surface

5. Precision turning on all critical surface

6. Large selection for specific machine models, custom design accepted

Trade Name OTT Retetion Knob
The Article No. Please contact us for detail.
Material 20 CrMnTi
Hardness Hardness of Head 53-57


High quality low carbon alloy steel processing thread after carburizing and quenching;
The holder with high hardness (Resistance to wear and long service life);
The thread with slightly low hardness (contributing to protecting the thread of tool holder);
The core with the lowest hardness (resistance to shock), accurate dimensions and applicable for high-end tool holder.