Greenteeth Performance Upgrade Kit for Vermeer is the solution to enhance your stump grinder's cutting power. This all-inclusive kit is designed to boost efficiency, minimize maintenance, and improve RPM recovery between cuts. Compatible with 900 Series Wearsharp teeth (926-WS2), the system features innovative tooth separation that allows the cutter wheel to regain speed before tackling the next section of wood. This results in cleaner, faster cuts while reducing the number of parts that need or upkeep. I for contractors and professionals, this upgrade kit helps extend the life and performance of your equipment. Model Number: UP-V6P