DK2 OPG777 Stump Grinder
#7 in Walk-behindFull review
For a buyer who wants a known engine and the longest machine warranty in this price range. Depth is average.
Amazon $1,799$1,799
The DK2 OPG777 Stump Grinder is the better stump grinder overall, rated 3.8 to 3.5. The Brave BRSG105K Stump Grinder costs $8 less ($1,791 vs $1,799).
Brave BRSG105K Stump Grinder
#13 in Walk-behindFull review
A plain Kohler grinder at a fair price. Buyers who want key start or a tow bar should look at the PowerKing or DK2.
WoodSplitterDirect $1,791$1,791
Prices were last checked November 3, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every walk-behind stump grinder; a clear win is highlighted. How we rank explains each one.
| Factor weight | DK2 OPG777 Stump Grinder | Brave BRSG105K Stump Grinder |
|---|---|---|
| Overall rating | 3.8/5 | 3.5/5 |
| Price 25% | 68 $1,799 | 68 $1,791 |
| Depth 20% | 60 9 in below grade | 60 9 in below grade |
| Height or wheel 10% | 50 12 in above grade | 50 12 in above grade |
| Power 10% | 100 429 cc engine | 100 429 cc engine |
| Teeth 10% | 62 9 teeth | 62 9 teeth |
| Features 15% | 35 tow bar | 50 features not published (neutral score used) |
| Warranty 10% | 100 3-year warranty | 0 warranty not published, scored as none |
Specifications
| DK2 OPG777 Stump Grinder | Brave BRSG105K Stump Grinder | |
|---|---|---|
| Cutting | ||
| Type | Walk-behind | Walk-behind |
| Depth below grade | 9 in | 9 in |
| Height above grade | 12 in | 12 in |
| Cutter wheel | 12 in | 12 in |
| Teeth | 9 | 9 |
| Power | ||
| Engine | Kohler Command PRO CH440 | Kohler CH440 |
| Displacement | 429 cc | 429 cc |
| Engine power | 14 hp | 14 hp |
| Electric start | No | - |
| Build | ||
| Tow bar | Yes | - |
| Weight | 231 lb | 234 lb |
| Warranty | 3 years | - |