
PULL STUDS The pull stud allows the locking draw bar of the spindle to pull the toolholder firmly into the spindle DIN 69871 and to release the toolholder automatically. Pull studs are made in various styles and sizes. They Locking Drawbar are not necessarily interchangeable. Only use the pull studs that are specified by the Pull Stud ISO 60 machine tool manufacturer. MAS 403 BT Clamping Unclamping DIN 2080 HSK-A VDI Recommended torque for pull stud tightening: SK / BT / ISO 30 20~25 Nm SK / BT / ISO 40 60~80 Nm MORSE SK / BT / ISO 50 200~250 Nm 256