Spindle has severe cracks, once detected they were prepared for welding, weld is then ground and taper is chromed & ground.
![](http://psgprecisiontools.co.uk/wp-content/uploads/2019/01/DSC01649.jpg)
![](http://psgprecisiontools.co.uk/wp-content/uploads/2019/01/DSC01672.jpg)
The spindle has air purge holes on front face copper pins are inserted to stop hole collapsing when welded.
![](http://psgprecisiontools.co.uk/wp-content/uploads/2019/01/DSC02904.jpg)
HSK63 spindle prepared for welding.
![](http://psgprecisiontools.co.uk/wp-content/uploads/2019/01/DSC02440.jpg)