The 1P24 PTO stump grinder is designed for small tractors equipped with hydrostatic drive and Category 1 3PH. This tractor mounted stump grinder model allows you to grind small and midsized stumps efficiently with a 24" Rotor, carrying 34 replaceable carbide teeth and has a cutting depth of 10" above ground and 6" below ground with the cutting wheel speed of 540 RPM. The carbide tipped teeth is 3/4-inch-thick. The maximum cutting depth per pass is 5" and maximum horizontal cut is 22"..With no hydraulics required this versatile PTO Stump Grinder is controlled with gravity feed which is ideal for tractors with no hydraulic remotes. In case if there is a sudden advance of the tractor while grinding, the hinge will automatically swing the grinding head out a bit, keeping even pressure on the stump. The stump grinder unit weight is 350 Lbs having a width and length of 48". A stump of 30" width and 12" depth can be ground in 15 mins with a 40HP tractor, with 30HP it takes around 20 mins. ¾" thick steel rotor acts as a backbone for the stump blaster cutting system. SEVERAL VIDEOS ON YOUTUBE OF THIS MODEL.