These blades are designed by Sifu David Rasko along with Modell Design. They are chopper style blades optimized for slicing and chopping. They represent years of thought by Wing Chun expert Sifu Rasko and are his personal design. The mild forward rake of the cutting edge increases its length (more linear cutting edge) and improves the "bite" on chops and slices. The handle is a straight handle appealing to traditionalists and experts trained on straight handles. It is ergonomic for better comfort, lower fatigue and improved retention. The fat point is moved forward cola bottle fashion so that it fits the curvature of the hand rather than centered as with the typical jian style handle. It is a modern commando knife style handle adapted for a much larger weapon. The D Guard is heavy duty, designed so that you can defend or attack with every part of it (and protect your hand).