Robert Sorby DVD: Focus on Specialist Woodturning Tools Part 3 - RSDVDTCEC One of the most challenging skills in woodturning is producing perfectly formed, matching threads. This DVD takes all the mystique of this time honoured craft. Close-ups show how to develop your technique. Includes threaded projects. This DVD also introduces the turner to the off-centre world of the Robert Sorby Eccentric chuck. Learn how to create a multitude of ‘impossible’ shapes.