By Lauren HollandUpdated November 2026
Shoppers looking for a grass trimmer and lawn edger usually want one tool that handles both jobs: trimming grass around fences, trees and posts, and cutting a crisp line along driveways, sidewalks and garden beds. Combo units with a string head that flips into an edging blade can cover both tasks without buying two machines. The picks below were chosen on specifications, brand reputation and common owner feedback patterns. Battery capacity, cutting width, auto line feed, weight and whether the unit is cordless or corded all shaped the ranking. None of these were tested by the author.
Our top picks at a glance
- 1
TOP CHOICEBest overallWorx WG163 2-in-1 Cordless String Trimmer and Electric Lawn EdgerView on Amazon - 2
TOP CHOICEBest for larger lawns20V 12" 2-in-1 Cordless String Trimmer and Electric Lawn EdgerView on Amazon - 3
TOP CHOICEBest for small yards12 Inch Lightweight 2-in-1 Trimmer and EdgerView on Amazon - 4
Best budget pickBLACK+DECKER BESTA510 14-Inch 2-in-1 String Trimmer and Lawn EdgerView on Amazon - 5
Best for edging and trenchingWorx WG896 12 Amp Electric Lawn Edger and TrencherView on Amazon
Our Top Picks
Quick Comparison
| Product | Best for | Key feature |
|---|---|---|
| Worx WG163 2-in-1 Cordless String Trimmer and Electric Lawn Edger | Homeowners who want a balanced cordless combo | Two included 2.0Ah batteries and charger |
| 20V 12″ 2-in-1 Cordless String Trimmer and Electric Lawn Edger | Mid-sized lawns with frequent edging | Auto line feed with spool line included |
| 12-inch Lightweight 2-in-1 Trimmer and Edger | Small yards and garden beds | Light weight with auto line feed |
| BLACK+DECKER BESTA510 14-Inch 2-in-1 String Trimmer and Lawn Edger | Budget-minded buyers with corded access | 6.5-amp motor with auto feed |
| Worx WG896 Electric Lawn Edger and Trencher | Dedicated edging and trenching along hard edges | Three-position adjustable cutting depth |
Worx WG163 2-in-1 Cordless String Trimmer and Electric Lawn Edger
Command Feed, Works for Lawn Weed Removal Tasks, 2 x 2.0Ah Batteries & Charger Included, PowerShare WORX 20V 12" 2-in-1 Cordless String Trimmer & Electric Lawn Edger, WG163
Best for: Homeowners who want a balanced cordless combo for routine trimming and edging.
This is a good fit for suburban lots where the same tool needs to handle grass along fences and a clean line along the driveway. The cordless design avoids extension cords near wet grass.
Key specs
- Cordless 20V PowerShare system
- 12-inch cutting path
- Two 2.0Ah batteries and charger included
- 2-in-1 string trimmer and electric edger
Pros
- Batteries and charger are included, so it is ready to use out of the box.
- The PowerShare platform works with other compatible Worx 20V tools.
- Switching between trimming and edging takes little effort.
Cons
- Runtime on a single 2.0Ah battery is limited for large areas.
- The 12-inch path is narrower than gas units for heavy growth.
Bottom line: A strong first choice for homeowners who want one cordless tool that covers both trimming and edging.
20V 12″ 2-in-1 Cordless String Trimmer and Electric Lawn Edger
2*4Ah Battery Powered Grass Mover with Auto Line Feed, 2 in 1 Lawn Edger with 8 Pcs Grass Cutter Spool Line, Yellow 20V 12” 2-in-1 Cordless String Trimmer & Electric Lawn Edger
Best for: Mid-sized lawns that need frequent edging and trimming.
Owners with larger yards often want to avoid frequent line changes. The auto line feed and included spool line suit longer sessions.
Key specs
- 20V cordless platform
- 12-inch cutting width
- Two 4Ah batteries listed
- Auto line feed with 8 spool line pieces
Pros
- Higher listed battery capacity supports longer runtime.
- Auto line feed reduces stops to reload string.
- Includes a spare supply of cutting line.
Cons
- Heavier than the compact 12-inch models in this list.
- Brand reputation is less established than the major names here, so check the warranty terms.
Bottom line: Best for owners who need longer runtime and want fewer interruptions while working.
12 Inch Lightweight 2-in-1 Trimmer and Edger
12 Inch Lightweight Lawn Trimmer, 2-In-1 Trimmer & Edger with Auto Line Feed, Grass Cutter Lawn Mower for Small Yard Garden 20V Electric Cordless String Trimmer 2 x 2.0Ah Battery Powered with Charger
Best for: Small yards, garden beds and tight spaces.
A lighter tool reduces fatigue on short jobs. It suits people who edge a few beds and trim along walkways rather than whole acres.
Key specs
- 12-inch cutting path
- 20V cordless design
- Two 2.0Ah batteries with charger
- Auto line feed
Pros
- Light weight makes edging along beds easier to control.
- Auto line feed keeps trimming going without manual adjustment.
- Battery set and charger are listed as included.
Cons
- Not designed for large or heavily overgrown areas.
- Smaller path means more passes on wide edges.
Bottom line: A practical choice for small lawns and garden edges where weight matters most.
BLACK+DECKER BESTA510 14-Inch 2-in-1 String Trimmer and Lawn Edger
BLACK+DECKER Weed Wacker with Auto Feed, 14-Inch 2 in 1 String Trimmer Lawn Edger, Powerful 6.5-Amp Lightweight Electric Weed Eater (BESTA510)
Best for: Budget-minded buyers who have an outlet nearby.
Corded models remove battery concerns entirely. This one suits people who work close to a power source and want consistent power without charging.
Key specs
- 6.5-amp electric motor
- 14-inch cutting path
- Auto feed for the trimmer line
- 2-in-1 string trimmer and edger
Pros
- No battery to charge or replace.
- Wider 14-inch path than the compact cordless models here.
- Well-known brand with widely available replacement line and parts.
Cons
- Cord length limits the working range.
- Corded use near wet grass calls for care and a GFCI-protected outlet.
Bottom line: A sensible budget pick for owners with a nearby outlet and a modest yard.
Worx WG896 12 Amp Electric Lawn Edger and Trencher
WORX3-Position Adjustable Cutting Depth, Lawn Edging & Trenching Dual Use, Corded Electric Lawn Edger, 12 Amp 7.5" Trencher for Lawn Landscaping, WG896
Best for: Dedicated edging and trenching along hard edges.
This unit is built more for edging than trimming. It suits anyone who wants a crisp, deep cut along concrete and wants adjustable depth.
Key specs
- 12 amp corded motor
- 7.5-inch cutting blade
- Three-position adjustable cutting depth
- Lawn edging and trenching dual use
Pros
- Adjustable depth helps with different edge profiles.
- Strong motor for cutting into compacted soil.
- Trenching capability adds versatility for landscape work.
Cons
- Not a string trimmer, so grass along fences still needs another tool.
- Corded operation limits where you can work.
Bottom line: Choose this if edging and trenching are your main needs and you already have a trimmer.
Buying Guide
Power source: cordless vs corded
Cordless units offer freedom of movement and are easier to use on wet grass if you keep a safe distance from water. Corded models give steady power and lower upfront complexity, but cord length limits your reach. Owners with long driveways often prefer cordless. Corded use calls for a GFCI-protected outlet and an outdoor-rated extension cord.
Good picks for this: Worx WG163 and BLACK+DECKER BESTA510
Cutting width and path
Most combo models use a 12- to 14-inch trimming path. Wider paths cover more ground per pass, while narrower paths are easier to steer around beds and posts. Measure your longest straight edges to decide.
Good picks for this: 12 Inch Lightweight 2-in-1 Trimmer and Edger and BLACK+DECKER BESTA510
Battery capacity and runtime
Check the listed amp-hour rating. A 4Ah battery generally runs longer than a 2.0Ah battery at the same voltage, though actual runtime depends on grass thickness and cutting mode. Keep a spare battery if your lawn is large.
Good picks for this: 20V 12″ 2-in-1 Cordless String Trimmer and Electric Lawn Edger and Worx WG163
Auto line feed
Auto line feed releases more string as it wears, which cuts down on stopping to reload. This matters most on long edges and thick grass. Confirm that spool line is available for the model.
Good picks for this: 20V 12″ 2-in-1 Cordless String Trimmer and Electric Lawn Edger and 12 Inch Lightweight 2-in-1 Trimmer and Edger
Weight and balance
You will hold this tool at waist height for long stretches. A lighter unit is easier on the wrists and back, while a heavier one can feel steadier in thick grass. Test the balance in a store if you can.
Good picks for this: 12 Inch Lightweight 2-in-1 Trimmer and Edger
Edging depth and blade style
If you want a deep, clean cut along concrete or a trench for landscape edging, look for adjustable depth. Dedicated edgers with a steel blade usually handle compacted soil better than a string head.
Good picks for this: Worx WG896 Electric Lawn Edger and Trencher
Maintenance and care
Clean the cutting head after each use, keep vents clear, and store batteries indoors at moderate temperatures. Replace worn string before it frays badly. Follow the manufacturer’s maintenance schedule.
Good picks for this: Worx WG163 and BLACK+DECKER BESTA510
FAQ
Can one tool really do both grass trimming and lawn edging?
Yes, 2-in-1 models use a string head for trimming and a blade or guard position for edging. The edge they produce is usually clean on soft soil and light sod, but a dedicated edger may give a deeper, straighter line along hard edges.
Is a cordless or corded combo better?
Cordless is better for mobility and wet-grass safety when you keep a reasonable distance from water. Corded is better when you have an outlet nearby and want steady power without charging.
How often should I replace the trimmer line?
Replace line when it becomes short, frayed or too brittle to cut cleanly. Auto feed models will release new line as the old line wears. Check the manual for the correct line diameter.
What size lawn suits a 12-inch combo?
A 12-inch path works well for small to mid-sized yards with lots of edges, beds and obstacles. For large open lawns, a wider cutting path or a gas unit may save time.
Should I use a string trimmer on lawn edges?
Yes, with care. Keep the head angled so debris is thrown away from you and stay clear of hard surfaces where the string can kick back. Wear eye protection and closed shoes. See Using a String Trimmer for Lawn Edges Safely for more detail.
How do I keep grass from creeping back over the edge?
Edge on a regular schedule, cut a clean vertical or slightly angled line, and treat runners that cross the edge. Consistent timing matters more than cutting deeper each time.
Conclusion
For most homeowners, the Worx WG163 offers a balanced cordless setup with batteries included. Owners with larger lawns may prefer the 20V 12″ model with longer-capacity batteries and auto feed. The 12-inch lightweight combo suits small yards, while the BLACK+DECKER BESTA510 is a sensible budget pick for those near an outlet. If edging and trenching are your priority, the Worx WG896 is the most focused option. Match the tool to your lawn size, power access and how much edging you do each week.
Sources
- Consumer safety guidance on power equipment and yard tool use (cpsc.gov)
- Workplace guidance on hand and power tool safety, including eye protection (osha.gov)
- Research-based lawn care and turfgrass maintenance information from land-grant universities (extension.org)
Related reading
- Lawn Trimmer vs Edger: Which Tool Gives You Cleaner Lawn Lines?
- Lawn Edging Tools: Manual Edgers, Power Edgers, Trimmers
- 7 Best Electric Lawn Trimmer Edger Models for Clean Lines (2026)
- 7 Best Electric Lawn Grass Edgers for Clean Lines (2026)
About Lauren Holland
Lauren Holland is part of our editorial team and reviews and edits our lawn edging & trimming guides, checking product details against manufacturer specifications and owner feedback.
