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 7 or 8-foot widths. The 91 Series features a number of tilt, angle and offset adjustments in both forward and reverse positions to smooth out your project how you need.