Greenteeth 1100 Series Stump Grinder Cutter Tooth (Wearsharp) 1100-WS Stump Grinder teeth 1100 Series Wearsharp. Can be quickly rotated 3 times for a sharp cutting edge before sharpening is needed. Recommended for use on Stump Grinders and Cutters 100+ hp. Greenteeth 1100 series teeth are designed to fit on 1100 series Greenteeth pockets only. Enjoy better shearing action and faster results with these Stump Grinder teeth by Greenteeth.