The 3P38 PTO stump grinder is designed for tractors equipped with a 540 RPM PTO and a high horsepower range of 60–110 HP, allowing you to grind stumps with tractor sizes that were not offered before. The stump grinder features a 34" rotor carrying 52 replaceable carbide teeth that extend a full 1-¼ inches from the rotor, preventing chips and mulch from getting plugged. The rugged gearbox handles up to 110 HP and delivers 1,475 ft/lbs of stump-destroying torque. A 30" wide and 12" deep stump can be ground in 3 minutes with a 110 HP tractor, 4 minutes with a 100 HP tractor, and 6 minutes with a 70 HP tractor.