7' HEAVY DUTY REAR BLADE KING KUTTER'S HEAVY DUTY REAR BLADES are in addition to our very popular rear blade. The heavy-duty mold board heavy-duty top hitch design make it a leader in quality and performance. Its features include 5 forward and 5 reverse adjustments and 3 tilt angle adjustments. Each blade has a high carbon steel reversible cutting edge. They are great for dirt work, road maintenance, ditching, landscaping, snow removal, cleaning livestock pens plus much more.