I have a 1.5" galvanized nipple stuck in a steel storage tank.  It is rusted so bad that when I attempted to remove it, the nipple collapsed leaving the threaded portion in the tank.  I had applied heat ,but it didnt help.  Is there a way to get the rest out without any fancy tools?
	
		
			
		
		
	
				
			 
	 
	 the piece or the chisel.
 the piece or the chisel.