18" Excavator Stump Grinder Attachment, 3 to 7-ton Excavator and Backhoe, 13-20 GPM, Piston Hydraulic Motor TMG-ESG18The TMG ESG18 Stump Grinder Attachment turns your excavator and backhoe into a dynamic cutting and tree base removal machine. Otherwise usable land can be severely hampered by inconvenient trunk stems that are difficult to clear, but this grinder will take care of all of them. The piston hydraulic motor provides higher speeds and efficiency to transform your excavator's horsepower into heavy duty cutting action. 16 replaceable and forged steel carbide