Standard (hex and spanner types)
ER/SK clamping nuts with corrosion resistant surface are standard on all Chongde ER toolholder.
Features:
Collet locking feature to keep the collet from coming out during assembly.
Balanced by design for high speed machining.
Special corrosion resistant treatment to reduce the friction between the collet and nut to increase clamping force by up to 120% and resist corrosion from common machining environments.
Material: 42Crmo
Hardness: HRC52
Accuracy: A class( 8micron), AA class (5 micron)
Type: A, M, UM/RD, KM/RD