The hollow-bored spindle with sleeve (water passage at the back) is compatible with the vertical glass drilling machine Profi Drill V 2/900/10 (BO 79.8 --> from 2003-2007) "front".
For glass drilling machine vertical Profi Drill V 2/900/10 (BO 79.8) front --> from 2003-2007
Application note:
Lubricate spline shaft profile with Klüberpaste, oil sleeve with WD40.