Jacobs taper chuck removal tool

[olderdan]

This is for the usual 13mm drill chuck and while the Jacobs taper does a good job they can get a bit set in their ways when it comes to removing them. I have seen people using ball joint wedges and two hammers but but that can damage the ball races.
This extractor uses the chuck itself and bears only on the bottom of the spindle with no strain on the quill assy, I have occasion to do this regularly more of which later.
Simply made from 13mm M/S reduced to 11mm with a brass pad and a 6mm SHCS.