Bilt Hard 420cc Stump Grinder
#8 in Walk-behindFull review
A low-cost 420cc grinder for a homeowner with a handful of stumps. It gives big-engine power without the price of the better-equipped models.
Amazon $1,399.99$1,399.99
The Bilt Hard 420cc Stump Grinder and the MechMaxx SGR1500 Stump Grinder are evenly matched, rated 3.7 and 3.7. The Bilt Hard 420cc Stump Grinder leads on height or wheel and teeth. The MechMaxx SGR1500 Stump Grinder wins on features and depth. The Bilt Hard 420cc Stump Grinder costs $159.01 less ($1,399.99 vs $1,559).
MechMaxx SGR1500 Stump Grinder
#9 in Walk-behindFull review
A good pick for a homeowner who wants a swinging chassis for less money. The SG380 adds a tow bar and key start.
Amazon $1,559$1,559
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.
Which should you buy?
- Choose the Bilt Hard 420cc Stump Grinder for height or wheel (24 in above grade vs 12 in above grade) and teeth (9 teeth vs 8 teeth).
- Choose the MechMaxx SGR1500 Stump Grinder for features (swings across the stump vs none of the three) and depth (10 in below grade vs 9.3 in below grade).
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 | Bilt Hard 420cc Stump Grinder | MechMaxx SGR1500 Stump Grinder |
|---|---|---|
| Overall rating | 3.7/5 | 3.7/5 |
| Price 25% | 84 $1,399.99 | 77 $1,559 |
| Depth 20% | 66 9.3 in below grade | 80 10 in below grade |
| Height or wheel 10% | 100 24 in above grade | 50 12 in above grade |
| Power 10% | 96 420 cc engine | 96 420 cc engine |
| Teeth 10% | 62 9 teeth | 50 8 teeth |
| Features 15% | 0 none of the three | 30 swings across the stump |
| Warranty 10% | 33 1-year warranty | 33 1-year warranty |
Specifications
| Bilt Hard 420cc Stump Grinder | MechMaxx SGR1500 Stump Grinder | |
|---|---|---|
| Cutting | ||
| Type | Walk-behind | Walk-behind |
| Depth below grade | 9.3 in | 10 in |
| Height above grade | 24 in | 12 in |
| Cutter wheel | - | 12 in |
| Teeth | 9 | 8 |
| Power | ||
| Engine | 420cc 4-stroke | Ducar 420cc |
| Displacement | 420 cc | 420 cc |
| Engine power | 15 hp | 15 hp |
| Electric start | No | No |
| Build | ||
| Swings across stump | - | Yes |
| Tow bar | No | No |
| Weight | - | 265 lb |
| Warranty | 1 year | 1 year |