The rugged construction of the 91 Series rear blades makes them ideal for a wide variety of applications, ranging from general road maintenance to ditching, snow removal, and terracing jobs. They are rated for use on tractors up to 90 PTO horsepower, and come in an 8-foot width. Both the 70 Series and 91 Series feature a number of tilt, angle and offset adjustments in both forward and reverse positions.