5' REAR BLADE SQUARE TUBING XB KING KUTTER'S XB REAR BLADE is designed for value added performance. Uses include road grading and maintenance, landscaping, snow removal, cleaning livestock pens, and much, much more. The XB Series rear blades feature a special formed 10" high 1/4" thick moldboard designed to roll dirt or snow and prevent drag. Each moldboard is equipped with high carbon steel reversible cutting edge that adds to the life of the blade. It features a unique, reinforced, 3-point square tube frame for added strength. Each unit has 5 forward and 5 reverse settings for maximum efficiency.