Dosko Stump Grinder (691SP-20HE)

Self-Propelled • Honda GX630 Power • Greenteeth 700 Series Cutter Teeth

The Dosko 691SP-20HE is a heavy-duty, self-propelled stump grinder built for powerful cutting performance, operator control, and long-term durability. Powered by a dependable Honda GX630 688cc engine, this machine is designed for serious stump removal in commercial, rental, and demanding property maintenance applications.

Its hydrostatic self-propelled drive system makes it easier to maneuver, while the front-mounted cutter wheel helps maximize operator safety during grinding. With a 5-position handlebar, electric start, and a durable 14-inch cutter wheel, the 691SP-20HE is designed to deliver aggressive cutting performance with better control and operator comfort.

Equipped with Greenteeth® 700 Series teeth, this stump grinder uses a 3-in-1 tooth system with a concave cutting edge that shears rather than shreds. Each tooth can be rotated in three 120-degree increments to provide fresh cutting edges and longer service life.

Note: Due to shipping restrictions and battery safety requirements, electric start units are not sold with a battery.

Key Features & Benefits

Honda GX630 Engine
Commercial-grade 688cc Honda engine delivers dependable power and long service life.
Hydrostatic Self-Propelled Drive
Makes the machine easier to move and maneuver during operation.
Front-Mounted Cutter Wheel
Designed to help maximize operator safety while grinding.
Electric Start
Convenient electric starting system for easier operation.
Battery required, not included.
Greenteeth® 700 Series Teeth
8-tooth cutting system designed for aggressive cutting and longer usable life.
3-in-1 Tooth System
Teeth can be rotated in three 120-degree increments for fresh cutting edges.
14" Cutter Wheel
Heavy-duty cutter wheel measures 14" diameter x 3/8" thick.
Cuts 24" Above and 18" Below Grade
Strong stump removal capability for tough, real-world jobs.
Direct Belt Drive System
Durable drive setup uses a 4-groove power band with idler bearing belt tensioners.
1.375" Diameter Bearings
Heavy-duty bearings built for strength and durability.
5-Position Handlebar
Helps improve operator comfort and control during grinding.
Unique Side Discharge Frame
Designed for practical chip discharge and efficient stump grinding operation.
All-Terrain Tires
Helps keep the unit stable and on track over varied jobsite surfaces.
Optional Safety Barricade

Quick Specs

Specification	Details
Model	691SP-20HE
Equipment Type	Self-Propelled Stump Grinder
Engine Brand	Honda
Engine Model	GX630
Displacement	688cc
Fuel Type	Gasoline
Starter	Electric
Battery Required	Yes – 12V lawn tractor size battery (Group U1)
Battery Included	No
Drive System	Hydrostatic / Direct Belt Drive
Belt Drive	4-Groove Power Band with Idler Bearing Belt Tensioners
Bearings	1.375 in. Diameter
Cutter Wheel	14 in. Dia. x 3/8 in. Thick
Cutting Capacity	24 in. Above Grade / 18 in. Below Grade
Teeth	Greenteeth® 700 Series Teeth (8)
Tires	16 in. x 6.50-8 in. Adjustable Brake Band
RPM	3000
Dry Weight	500 lbs.
Warranty	2-Year Limited Consumer / Commercial

What’s Included

Dosko 691SP-20HE Stump Grinder
Dosko 691SP-20 Manual

Ideal For

Commercial stump grinding
Rental fleet use
Landscapers and contractors
Property maintenance crews
Heavy-duty stump removal jobs

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