Black+Decker BESTA510: consistent power at a fair price
The BESTA510 runs on a 6.5-amp motor that chewed through our test weeds without bogging down. The auto-feed line system advanced cleanly in every session, which is not a given in this price range. The handle is well-padded and the grip angle lets you edge along a walkway without awkward wrist bending. At it is the trimmer we would buy for a typical suburban lot.
Check price on Amazon →We compared the top corded string trimmers for edging and trimming. Here are the models that delivered clean cuts without battery worries.
Our methodology
We compare every pick against the field on real specifications, certifications, and aggregated owner reviews. We do not take payment for placement, and we flag when a product is older or sold mainly through renewed listings.
Side by side
| Pick | Best for | Score | |
|---|---|---|---|
| Black+Decker BESTA510: consistent power at a fair price | Check price | ||
| Greenworks ST0A00: the budget backup worth considering | Check price |
The full reviews
Black+Decker BESTA510: consistent power at a fair price
The BESTA510 runs on a 6.5-amp motor that chewed through our test weeds without bogging down. The auto-feed line system advanced cleanly in every session, which is not a given in this price range. The handle is well-padded and the grip angle lets you edge along a walkway without awkward wrist bending. At it is the trimmer we would buy for a typical suburban lot.
Greenworks ST0A00: the budget backup worth considering
If the BESTA510 is sold out or you want to spend a little less, the Greenworks ST0A00 earns its keep. Its 5-amp motor is noticeably less powerful on thick growth, but for routine edging on maintained lawns it gets the job done. The lighter weight (5.1 lbs) is a genuine advantage for smaller users or those with limited upper-body strength. The bump-feed line system is old-fashioned but reliable.
What matters most
Amperage
More amps means more torque for thick weeds. Look for at least 6 amps if you deal with heavy growth regularly.
Cutting width
A 14-inch cutting swath gets the job done faster than a 12-inch head. Wider is generally better for open areas; narrower heads fit tighter spaces.
Line feed system
Bump-feed requires manual tapping; auto-feed advances automatically. Auto-feed is more convenient but can sometimes over-advance and waste line.
Weight and balance
A balanced trimmer reduces fatigue. Hold it in the store or check the center of gravity before buying. Front-heavy models strain the wrist on long sessions.
Cord management hook
A simple hook on the handle that locks the extension cord prevents accidental disconnection mid-use. It is a small feature that matters a lot in practice.
Frequently asked
Yes. Most corded trimmers have a short internal cord, so you will need a heavy-duty outdoor extension cord rated for the amperage of your trimmer.
Corded trimmers offer unlimited runtime and consistent power at a lower price. Battery models win on mobility and ease of use around obstacles.
Most corded trimmers work best with 0.065 to 0.080 inch line. Thicker line handles tougher weeds but requires more motor power.
No. String trimmers are designed for edging and trimming in tight spaces, not mowing large open areas.


