2024 John Deere, SS30, chippers_grinders, Attachments: Other, Low Speed High Torque Shreds Material With No Flying Debris, Hydraulic Flow - 76-170 L/min. (20-45 gpm), , John Deere SS30 Stump Shredder, Low-speed, high-torque auger planetary drive shreds material more safely and without the dangerous flying debris of conventional stump grinders.Bore 20 inches into the ground, Hydraulic Flow - 76-170 L/min. (20-45 gpm). Call or email for more information.