The Oregon 91-622 high-lift blades are designed for superior cutting performance and efficient grass discharge, reducing clumping and improving bagging. Measuring 18” in length with a 5/8” center hole, they fit 52” Exmark, Scag, and Toro Wheel Horse zero-turn mowers, as well as 36” Scag models. This set of three durable replacement blades meets OEM specifications, directly replacing Toro 105-7781 and Scag 48108, 481707, 482462, and A48108 for reliable, long-lasting performance.