I've noticed that when I'm roughing down a square section spindle blank, sometimes the blank catches and stops rotating, even though I had tried to secure it onto the drive centre (by tapping with a mallet)
I wonder if this suggests that the drive centre isn't inserted enough into the blank because it's blunt.
Is it possible to sharpen the centre or do I need to replace it.
If the former, how does one sharpen it.
With best wishes and thanks.
MC