Dosko Stump Grinder | 20 HP Walk-Behind | Honda GX630 | Electric Start | Greenteeth 700 Series | Model 620-20HE

The Dosko 620-20HE walk-behind stump grinder combines a powerful 20 HP Honda GX630 electric start engine with a proven direct belt drive system — giving you professional grinding performance at a price point between a basic 13 HP unit and a full self-propelled machine. With a 688cc Honda engine at 2500 RPM and a 14-inch cutter wheel, this unit grinds stumps 20 inches above grade and 16 inches below, handling the majority of residential and light commercial stump removal work with authority.

Designed for tree services and landscape contractors who want electric start convenience in a walk-behind configuration, the 620-20HE features Dosko's signature side discharge frame and five-position adjustable handlebar. The Greenteeth 700 Series teeth use a concave dish cutting edge to shear through wood fiber efficiently, and each tooth can be rotated to three positions before replacement — extending tooth life and lowering operating costs.

Key Features

• Honda GX630 (688cc) electric start engine — 20 HP professional power
• Walk-behind configuration with direct belt drive
• Grinds 20 in. above grade, 16 in. below grade
• 14-in. dia. x 3/8-in. thick cutter wheel at 2500 RPM
• Greenteeth 700 Series Teeth (8) — 3-in-1 concave dish design, rotate 3x before replacing
• Direct belt drive with 4-groove PowerBand and idler bearing tensioners
• 1.375-in. diameter bearings
• Unique side discharge frame — keeps debris clear of operator
• 5-position adjustable handlebar for all-day comfort
• Oil shutdown sensor (Oil Alert)
• Optional tow bar package available
• Note: Battery not included — shipping restrictions apply to electric start units with batteries