4JJSB (JJ Short Length Ball End Mills)
- Endmills for pre-hardened and hardened steel (HRc52~70)
- Good wear resistance by high quality Si-based PVD coating.
- High precise edge tolerance.
- Short overall length for easy use with shiringking chuck.
- Very nice work surface finish.
- Outstanding performance at high speed machining by ultra fine (0.2um) WC grade.





