12 in. 14 hp gas powered certified commercial stump grinder with 9 high speed hpdc machined carbide cutters the dk2 power 12 in. stump grinder offers the dk2 power 12 in. stump grinder offers superior torque at 22.7 gross ft. lbs. delivered to 9 high speed carbide rpm cutters. this direct belt drive grinder eliminates clutch slippage and demands 100% cutting performance.