A solid deep-cutting grinder with a known engine brand. It suits a homeowner who can push it to each stump.
Amazon $1,587.75The Titan Attachments PBSG420 Stump Grinder rates 3.7 among walk-behind stump grinders; the MechMaxx TSG61 PTO Stump Grinder rates 3.5 among PTO ones. The Titan Attachments PBSG420 Stump Grinder costs $1,511.25 less ($1,587.75 vs $3,099).

The best PTO grinder for a mid-size tractor with rear remotes. Hydraulic swing and 12 in depth make it work like a small commercial machine.
Amazon $3,099Prices 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
These two sit in different type classes (walk-behind and PTO), and each is scored against the reference points for its own class, so a rating says how well each does among its own type peers. How we rank explains each factor.
| Factor weight | Titan Attachments PBSG420 Stump Grinder | MechMaxx TSG61 PTO Stump Grinder |
|---|---|---|
| Overall rating | 3.7/5 | 3.5/5 |
| Price 25% | 76 $1,587.75 | 38 $3,099 |
| Depth 20% | 100 12 in below grade | 100 12 in below grade |
| Height or wheel 10% | 88 15 in above grade | 40 24 in cutter wheel |
| Power 10% | 96 420 cc engine | 43 tractors up to 60 hp |
| Teeth 10% | 50 8 teeth | 18 16 teeth |
| Features 15% | 0 none of the three | 100 slip clutch, hydraulic swing, parking stand |
| Warranty 10% | 0 warranty not published, scored as none | 33 1-year warranty |
Specifications
| Titan Attachments PBSG420 Stump Grinder | MechMaxx TSG61 PTO Stump Grinder | |
|---|---|---|
| Cutting | ||
| Type | Walk-behind | PTO, 3-point hitch |
| Depth below grade | 12 in | 12 in |
| Height above grade | 15 in | 18 in |
| Cutter wheel | - | 24 in |
| Teeth | 8 | 16 |
| Power | ||
| Engine | Briggs & Stratton XR 420cc | - |
| Displacement | 420 cc | - |
| Engine power | 13.5 hp | - |
| Electric start | No | - |
| Tractor | - | 35 to 60 hp |
| Hitch category | - | 1 and 2 |
| Slip clutch | - | Yes |
| Build | ||
| Hydraulic swing | - | Yes |
| Tow bar | No | - |
| Parking stand | - | Yes |
| Weight | - | 635 lb |
| Warranty | - | 1 year |