The GXM750 excavator stump grinder is designed with high performance in mind for 7 to 18 ton excavators equipped with 8 to 40 gallons per minute of flow. It Features 12 round carbide teeth packed in groups of 3. The high speed Teeth can be rotated for a fresh edge up to three times, letting you grind stumps 3 times longer. The concave shaped carbide tip of our High Speed Teeth provide aggressive cutting action by chipping the brush bit by bit. The high number of teeth means that each tooth needs to do less work. Each of the Stump Grinders teeth only need to make a small cut, because the work is shared by more of our rugged teeth they last longer and usually only require 2 or 3 replacements at a time. The bolt-on designed teeth allow for straightforward replacement. Heavy tooth population makes finer mulch and allows much smoother operation, while the blast shield with double row chain curtain ensures debris stays put.