ZBrushCentral

How to Cut Off and delete a piece of my Sculpt

Hello,
Sorry for such a simple question but I am new to ZBrush and can not find an answer to this.
I have created a long thin spike on a sculpt that I would like to cut off and delete.
How do I cut it off and delete it from the sculpt please?

Thanks,

dynamesh will allow you to cut off pieces of your mesh, of you can use a boolean function to remove it, you could also just move it back toward your main mesh.

This guy would do the trick: http://www.pixologic.com/docs/index.php/New_Brushes#Slice_Brush