The SFH is a versatile, heavy duty attachment for use with tractors up to 500 horsepower (HP version). It can grind trees up to 18 in max diameter, crush stones up to 14 in max, and run at a depth of 16 in under ground. The transmission with side gearboxes converts engine power into speed and torque. Multiple tooth options combined with an industry leading rotor design, make the SFH one of a kind. All our options make the SFH very versatile and the best solution for multiple applications.