Very-portable at under 30 inches wide, this stump grinder can fit through most gates and between buildings, making it great at getting into hard to reach areas. Powered by a 13 HP Honda GX390 389cc gas engine, and featuring a centrifugal clutch, the 10 inch cutting head chews through stumps with 12 concave shaped carbide tipped round teeth. These concave shaped carbide tip provides aggressive stump blasting action by chipping the stump bit by bit. Part of the secret of their performance is always having a sharp edge. These round carbide tipped teeth are 3 teeth in one because each tooth can be rotated up to three times to provide renewed cutting performance. This gives you three times the wear, letting you tear into stumps 3 times longer. The tool holders are bolt on replaceable in case of damage makes servicing quick and easy without special tools and can even be done in the field.