ER-40 CAT 40 V-Flange Collet Chuck With 4.00″ Gage Depth

ER-40 CAT 40 V-Flange Collet Chuck With 4.00 Gage Depth (3900-4039)
For CNC machines with a CAT 40 spindle taper.
Hardened and precision ground.
Drawbar end thread is 5/8″-11.
Collet range is 0.120-1.020″.
T.I.R. is