18″ Lawn Scarifier HD with 7.5HP Engine LS460Lawn Scarifier 18 Heavy Duty LS460 for commercial use. Powered by GB225 7. 5HP engine fitted with cyclone pre cleaner air filter to handle extreme dust conditions. Features 32 hardened steel pivoting blades for durability, variable throttle speed control and adjustable working depth, this is a very versatile machine. Removes grass to the soil layer to fix spongy turf where the grass stems are too long. For spring renovation (lawn reno) all the grass