9 Best Edgers and Trimmers | Edges That Outlast the String

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Specs are compiled from manufacturer listings and verified buyer reviews and can change over time — please confirm the key details on the product page before buying.

If your sidewalk edge has gone fuzzy and your trimmer keeps snapping line, the fix is simpler than you think: match the tool to the job, not the shelf. A dedicated edger with a steel blade carves a clean trench along concrete in one pass, while a 2-in-1 trimmer handles the fence line and the flower beds. This guide separates the nine picks that actually earn their garage space from the ones that leave you restringing line every fifteen minutes.

I’m Mohammad Maruf — the founder and writer behind Gardening Beyond. This guide is built by comparing the manufacturers’ published specifications and the patterns across verified customer reviews, so you get each pick’s real strengths and trade-offs instead of marketing spin.

You will see corded and cordless options side by side, with cutting widths from 7 inches to 13 inches and runtimes that swing wildly depending on battery size. Every pick below is a real, verified edger or trimmer, so you can find the best edgers and trimmers for your own yard without guessing.

Our Picks at a Glance

WORX Electric Lawn Edger, 12 Amp 7.5' Trencher for Lawn Landscaping, WG896
Best OverallWORX Electric Lawn Edger, 12 Amp 7.5″ Trencher for Lawn Landscaping, WG8964.4★15,481 ratingsThe corded edger that turns two hours of string whacking into forty-five minutes of clean trench. This is the pick for the buyer staring at a sidewalk that has not been edged in years.Check Price on Amazon
BLACK+DECKER 20V MAX String Trimmer and Edger 2 in 1, Cordless Weed Wacker with Auto Spool Feed, Battery and Charger Included, 12 Inch Steel Deck, Reduced Vibration (LST300)
Budget ChampionBLACK+DECKER 20V MAX String Trimmer and Edger 2 in 1, Cordless Weed Wacker with Auto Spool Feed, Battery and Charger Included, 12 Inch Steel Deck, Reduced Vibration (LST300)4.4★9,661 ratingsTwo tools in one frame, at a weight most people can swing one-handed from a porch step. If you have a small yard and no appetite for gas cans or cords, this is the entry point that keeps showing up on shortlists.Check Price on Amazon
Greenworks 24V 12 in Cordless String Trimmer, 2.0 Ah Battery and Charger
Best for Angled EdgingGreenworks 24V 12 in Cordless String Trimmer, 2.0 Ah Battery and Charger3.8★540 ratingsA pivoting head built for the weird spots — tree roots, sloped terrain, tight fence corners.Check Price on Amazon

How To Choose The Best Edgers and Trimmers

The two jobs look similar from the porch, but they are not. Trimming knocks down tall growth around fences, trees and beds. Edging cuts a vertical trench along a hard surface — sidewalk, driveway, curb — so the grass stops creeping over the concrete. A tool that only trims will leave you sawing at the edge with the string head, and a dedicated edger will not clear a bed of tall weeds. Decide which job dominates your yard before you pick.

Blade or String Head

A steel blade cuts a defined trench and keeps cutting after it dulls a little, but it needs occasional sharpening and it will not touch fence-line weeds. A string head spins nylon line to knock down growth, and the line wears out and gets replaced. If your lawn is mostly edges along concrete, a blade edger saves you the restringing routine. If you have both jobs, a 2-in-1 trimmer that converts to edging covers more ground with one tool.

Cutting Width and Depth

Cutting width — the swath the head clears in one pass — is the number that decides how many trips down the sidewalk you make. A wider swath means fewer passes, but a narrower blade edger cuts a tidier, more defined trench line. Depth is the second half of that equation. A shallow depth setting gives you a light trim, while a deeper setting carves a real trench that holds its line for weeks.

Power Source and Runtime

You get unlimited run time from a corded tool as long as you have an outlet and an extension cord, with no battery to charge or replace. A cordless tool frees you from the cord but runs on a battery, so check the runtime in minutes before you buy — it varies a lot between a small 2.0 Ah pack (amp-hour, a measure of battery capacity) and a larger 4.0 Ah pack. If you already own batteries from a cordless platform (a system where one battery fits many tools), staying inside that system saves you from buying new packs.

Quick Comparison

Model Best For Cutting Width Power Source Item Weight Amazon
WORX WG896 Electric Lawn Edger★ Best Overall Overgrown edges and trenching 7.5 inches Corded, 12 Amp 14 pounds Amazon
BLACK+DECKER LST300 20V Trimmer/EdgerBudget Champion Small yards and light trimming 12 inches Cordless, 20V 5.7 pounds Amazon
Greenworks 24V 12 in TrimmerBest for Angled Edging Angled edging around beds and roots 12 inches Cordless, 24V 5.2 pounds Amazon
CRAFTSMAN V20 CMCST901M1 Long runtime on a budget 13 inches Cordless, 20V Amazon
BLACK+DECKER LSTE525 20V Trimmer/Edger Two-battery convenience 12 inches Cordless, 20V 5.3 pounds Amazon
WORX WG898 20V Cordless Edger Cordless edging without cords or gas 7 inches Cordless, 20V 8.6 pounds Amazon
Greenworks 80V ED80L02 Edger Heavy edging with a wide blade 8 inches Cordless, 80V 10.3 pounds Amazon
DEWALT DCED472X1 60V Edger Attachment-system owners 7.5 inches Cordless, 60V Amazon

In‑Depth Reviews

★ Best Overall

1. WORX Electric Lawn Edger, 12 Amp 7.5″ Trencher for Lawn Landscaping, WG896

Our pick — over 4★ from 15,000+ verified ratings; the strongest balance of quality and price.

12 Amp Motor3-Position Depth

The corded edger that turns two hours of string whacking into forty-five minutes of clean trench.

This is the pick for the buyer staring at a sidewalk that has not been edged in years. The 12 Amp motor spins a 7.5-inch blade at 4700 revolutions per minute — that is a steel cutting wheel turning fast enough to slice through compacted soil and matted grass roots, not just tickle the surface. Depth is adjustable to 1 inch, 1-1/4 inches or 1-1/2 inches, so you pick a light trim for maintenance or a deeper trench for a neglected edge. A cutting-line indicator tells you when you are drifting off the straight, which is the one skill new edger owners struggle with most.

This tool beats the others on speed and staying power. A corded tool runs all afternoon with no battery to swap, and owners consistently report that trade: their trimmer time drops from two hours to forty-five minutes, the result looks tidier, and there is no string to reload mid-job. The adjustable shaft and D-grip handle (a handle shaped like the letter D) let tall and short users find a working position, and assembly is minimal — the handle is the main piece to attach before you are edging. One quirk worth knowing: the trenching lever (the control that sets how deep the blade digs) can drop on its own, so if you are cutting over a yard with buried wiring, watch the trenching depth.

What wins people over is the 12 Amp corded motor — owners who moved from gas edgers report the same clean trench without the fuel and pull cord. The durability picture is honest but mixed: the blade is heavy-duty and the frame is described as solid, yet a few owners find the rear blade guard sits low enough to catch thick grass, and the sidewalk guide feels shallow at the 1-inch blade setting. It weighs 14 pounds, which is substantial in hand but nothing you cannot carry to the curb.

What earns it first place

  • 4700 RPM 12 Amp motor cuts through overgrown, long-neglected edges in a pass or two
  • Three depth settings — 1″, 1-1/4″, 1-1/2″ — for light trims or deep trenches
  • Corded power means no battery, no charging, no runtime limit
  • Cutting-line indicator keeps your sidewalk line straight

Where it asks for care

  • Trenching lever can drop on its own — watch it over buried wiring
  • Rear blade guard catches thick grass
  • Needs an extension cord and an outdoor outlet

Grab this one: if your yard is edge-heavy and you want a corded blade that never runs out of charge.

Think twice: if you have no outdoor outlet within cord reach, or you mostly need to knock down tall weeds rather than cut a trench.

Budget Champion

2. BLACK+DECKER 20V MAX String Trimmer and Edger 2 in 1, Cordless Weed Wacker with Auto Spool Feed, Battery and Charger Included, 12 Inch Steel Deck, Reduced Vibration (LST300)

6200 RPMAuto Feed Spool

Two tools in one frame, at a weight most people can swing one-handed from a porch step.

If you have a small yard and no appetite for gas cans or cords, this is the entry point that keeps showing up on shortlists. You get 12 inches of cutting swath (the width the spinning line clears in a single pass) and a 6200 RPM POWERDRIVE transmission (revolutions per minute, a measure of how fast the motor spins) that pushes more of the motor’s power down to the string, so you spend less time going over the same patch. Converting from trimmer to edger takes seconds — no tools — which is the whole point of a 2-in-1. Better still, the Automatic Feed Spool feeds line as it is needed without the bump-and-pray routine that plagues older trimmers.

At 5.7 pounds it is genuinely light in a senior-friendly way, and the adjustable handle and height positions let you tune it to your posture. It runs on a 2.0 Ah lithium-ion pack that the brand says gives 33% more runtime than its previous LBXR20 pack, and the kit includes the battery, charger and a wall-mountable charging base. It is also quiet and starts instantly — no pull cord, no exhaust. Owners consistently flag two things: the lightweight is the headline, and the power is modest. It trims fine along fences and around beds, but it will stall on weeds much thicker than grass.

What wins people over is the convenience-to-cost ratio — the auto-feed works, spools last a long time, and it slides into the same 20V battery system as the brand’s other tools. The honest caveat is runtime: the included battery covers one moderate job, and more than one buyer has noted that a second pack is close to essential if you have a lot of edge to cut. At 5.7 pounds with an adjustable handle, it suits arthritic hands and small patches of grass. For a quarter-acre of matted overgrowth, its 20V motor will stall.

Weight as a feature: At 5.7 pounds, this is one of the lightest 2-in-1 trimmers in this list — light enough that owners with limited grip strength can run it without arm fatigue.

The honest trade: The torque runs out on thick growth. Grass gets trimmed, weeds thicker than grass get wrestled.

Right for: someone with a modest yard who wants one light, cordless tool that trims and edges without fuss.

Not right for: a yard with matted, overgrown weeds where you need the motor to keep biting.

Best for Angled Edging

3. Greenworks 24V 12 in Cordless String Trimmer, 2.0 Ah Battery and Charger

90° Rotating Head5.2 lb Frame

A pivoting head built for the weird spots — tree roots, sloped terrain, tight fence corners.

If your pain is not the straight sidewalk but the awkward geometry — a bank that slopes away, a bed wrapped around a tree root — the 90-degree rotating head here is the feature that earns its place. Pivot it and you edge around obstacles without torquing your wrist, which is exactly what a fixed-head trimmer makes you do. Add a telescoping aluminum shaft that dials from roughly 4-foot-8 users to 6-foot-5 users and the addressable range is unusually broad. It weighs 5.2 pounds, so it is the lightest full-size trimmer in this list and easy to swing for a half hour without a break.

The head feeds a single 0.065-inch line on an auto-feed system, the trigger is push-button with no pull cord, and it runs quiet — the brand rates it at 75 dB (decibels, a measure of sound), quieter than a vacuum, which matters if you live somewhere with early-morning noise rules. One clear real-world highlight: a user reported cutting 60 feet of overgrown edges in under ten minutes, with the battery lasting about 40 minutes and the supplied string holding up for months of use. It is also part of a 24V platform, so the battery is shared with the brand’s other tools if you already own them.

Here is where I would slow down. The battery-life and ease-of-use experience is genuinely split — some find the pack strong, while others report very short runtimes and a head that will not hold its rotation angle. One recurring gripe is a rotating pole that will not lock tightly, so the head slips mid-cut. Another issue: the auto-feed occasionally stops releasing line, forcing a manual restring. That split is why this one sits mid-list rather than at the top, even though the price is friendly.

Best feature in play: The 90-degree pivoting head lets you edge steep banks and root-tangled beds without contorting your wrist — a genuine answer to a real problem.

Watch your footing: The rotating pole can fail to lock tight. If you lean into the tool on steep ground, the head has been known to twist away from your setting.

Pick it when: your yard has slopes, tree roots and awkward angles a fixed trimmer cannot reach comfortably.

Leave it if: you want the battery to hold steady for very long sessions — the runtime experience is inconsistent.

Longest Runtime

4. CRAFTSMAN V20 String Trimmer and Lawn Edger Kit with 4Ah Battery and Charger, 13 in. Cordless Weed Wacker with Up to 63 Minutes Runtime, Lightweight (CMCST901M1)

63-Min Runtime13″ Swath

The number that matters here is 63 — minutes of runtime from one 4.0 Ah pack.

For anyone who resents stopping mid-yard to swap a battery, this kit is built around stamina. The manufacturer rates runtime at up to 63 minutes on the included 4.0 Ah battery, and with two speed settings you can pick between staying power on the low setting and more cut on the high setting. The cutting swath is 13 inches — a full inch wider than the 12-inch heads on the BLACK+DECKER LSTE525 and the LST300 above — so you cover more fence line per sweep. The motor is rated for 52% more power, which is the figure the brand attaches to its ability to slice through thick grass.

It converts from trimmer to edger with a Turn-To-Edge function, so the same tool handles both jobs, and the adjustable handle lets you dial in comfort for a long session. It runs on the brand’s V20 system, meaning the battery also fits the rest of the platform’s tools. Owners are emphatic about the battery — several describe a single pack finishing the whole job, and one says the tool is “better than what I expected” and installs in minutes.

The recurring gripe is the counterweight to that: a few buyers find the battery drains quickly if you run hard on the higher speed setting, and a couple describe the build as lite duty versus heavy duty. That is the trade-off with a 13-inch swath on a light frame — the wider cut does the work fast, but it is not a commercial-grade tool. For a residential lawn, the 13-inch swath and 63-minute runtime land right.

The standout: 63 minutes of rated runtime from the included 4.0 Ah battery on a 13-inch swath covers a very respectable residential yard on one charge.

The catch: The high speed setting eats through that runtime faster. Save the boost for the thick stuff and stay in low for general trimming.

Made for: someone with a real half-acre lawn who wants one cordless 2-in-1 that can finish the job before the battery quits.

Not the pick if: you need commercial-day-in-day-out durability — this is a residential tool.

Best Two-Battery Kit

5. BLACK+DECKER 20V MAX Cordless String Trimmer and Edger, 12 Inch Weed Eater, 2-Speed Control Weed Wacker, 2 Batteries, Charger and Spool Included (LSTE525)

Two BatteriesEASYFEED System

Double the batteries, double the season — the workhorse that has survived a decade in some owners’ garages.

The reason to look here is the pair of included 20V lithium-ion packs. Where a single-battery kit leaves you waiting at a charger, this one keeps a spare charged and ready, and owners who track long-term durability report units still running after eight years of garage life. The trimmer feeds line with the EASYFEED button rather than a bump head, so advancing string is a thumb press. It runs a 2-speed control for either a power boost or extended runtime, and converts from a straight trimmer into a wheeled edger to cut the sidewalk edge.

At 5.3 pounds, this is one of the lightest frames in the group, and the premium micro-texture grip plus adjustable shaft and handle keep it comfortable across long sessions. The PowerDrive transmission increases the torque at the string so the cut stays steady on fence-line grass and thick weeds, and it belongs to the same 20V system as the brand’s other tools. Owners broadly agree this is a solid light-to-medium-duty tool, not heavy-duty and not cheap — and it handles the weedy ditch line when you push it.

Two honest notes. The included batteries are the smaller capacity packs, so a full season of edging will push you toward a higher amp-hour battery — many owners treat the stock packs as starter fuel. And a batch of kits shipped with batteries dated years old, so it is worth checking the manufacture date on delivery. Availability and support are the reason it claims a place here; if runtime matters most, a larger pack solves it.

What earns it a slot: Two included batteries with a charge-and-swap workflow, plus the kind of longevity buyers report across eight years of use, make this the low-drama option.

What to plan around: The stock packs are small. Budget for a larger-capacity battery if you edge a lot.

Right for: a homeowner who wants a proven 2-in-1 with two batteries so the second one is always ready.

skip it if: you have a large property and need one battery to power an entire session — a single-battery kit with a bigger pack suits you better.

Best Cordless Edger

6. WORX Cordless Lawn Edger, 20V 7″ Trencher for Lawn Border Tending, WG898

Brushless Motor2800 ft per Charge

The corded WORX without the cord — a brushless edger rated for 2800 feet of edging on one charge.

If you liked the idea of the WG896 but hated the idea of a cord, this is that same brand’s answer. A brushless motor (a design that removes the carbon brush contact points for less wear and better efficiency) drives a 7-inch blade with the brand’s claim of gas-like power, and the included 4.0 Ah battery is rated for up to 2800 feet of edging per charge. A dual-wheel stabilizing design keeps the tool tracking in a straight line, and the edge guide plus blade indicator help you follow a sidewalk or driveway accurately. The depth adjusts across three positions — 1.5, 1.75 and 2 inches — so you can match the cut to the soil and blade wear.

Owners broadly praise exactly that design: the build quality is well-regarded, and the fact that it is both lightweight and easy to assemble keeps coming up. It weighs 8.6 pounds, and a couple of owners mention big efficiency gains — one cut edging time from an hour to twenty minutes on a large yard, while another edged 850-plus feet of driveway and road frontage in under twenty minutes with the battery still around 85% charged. It belongs to the brand’s Power Share platform, so the 20V battery also works with other tools in that system, and the adjustable handle and telescopic shaft let you tune the position. It collapses entirely for storage.

The honest friction is sourcing and blade fit. Blades wear faster than the older edger, and finding the right replacement part number takes some detective work. A few owners hit a blade that arrived unsharpened or a mounting bolt so tight it would not budge. And the included battery is the smaller platform pack, so the rated runtime assumes an easy cut rather than tightly-packed sod. None of those are deal-stoppers — just things to check when the tool arrives.

Suits: a cordless-only yard where you already own the brand’s 20V Power Share batteries or want a lightweight brushless edger for regular edge maintenance.

Consider another pick if: you need heavy-duty clearing — the blade wear rate and replacement-part hunt are the trade-offs here.

Widest Cutting Path

7. Greenworks 80V 8 in Cordless Electric Lawn Edger, Tool Only

8″ Steel Blade7000 RPM

The tool-only pro blade — an 8-inch wheel spinning at 7000 rpm on a wide, defined cut.

If you already own the brand’s 80V batteries, this is the edger that makes that investment pay off. The 8-inch steel blade spins at 7000 RPM, which is a genuinely faster cutting wheel than the 7-inch blade on the WORX WG898, and the brand rates the brushless motor as generating 18% more torque than a gas edger at 68% lower noise. Depth is adjustable with a tool-free system across five positions up to 2.25 inches, and a curb wheel plus guided system applies downward stability so you are not fighting the tool along a sidewalk lip. The result on a fresh edge is a defined, clean cut that is closer to what a gas edger produced.

Runtime and weight experience here are mixed but with a clear positive core. Testimonials cite cutting through overgrown grass on sidewalks and curbs low-maintenance, and several note the battery lasted as long as they needed. The weight is where reviewers split — some describe it as light for its class, while others find the 10.3-pound bare frame gets tiring with battery installed, especially on uneven ground. A couple of owners also report that in practice the tool cuts about 1.5 inches below the sidewalk, not the full depth the marketing implies, so be realistic if you need a very deep trench.

What makes this one distinct is the tool-only math: no battery and no charger in the box means lower upfront cost if you are already in the 80V system, and the 4-year warranty covers the motor and gearbox. That makes it a smart addition for someone expanding an 80V platform, and a poor first buy for someone with no batteries.

The case for it: Eight-inch steel blade, 7000 RPM and up to 2.25-inch cutting depth make this the most demanding cordless edger here for compacted soil and concrete curbs.

The catch: Tool-only means no battery, and one owner reports the real cutting depth is closer to 1.5 inches on the sidewalk side than the advertised maximum.

Reach for this if: you own the brand’s 80V batteries and want a high-torque edger that does not flinch at compacted soil.

Look elsewhere if: you need the tool to come with a battery and charger — this one does not include either.

Premium Pick

8. DEWALT 60V MAX Cordless Lawn Edger Kit, FLEXVOLT Battery & Charger Included (DCED472X1)

60V FLEXVOLT2-1/2″ Depth

The attachment-ready 60V edger for the tool shed that already runs on DEWALT batteries.

This is the pick for the buyer invested in the brand’s battery platform — and for anyone who wants an edger that can grow into other jobs. It runs on 60V FLEXVOLT batteries and features Universal Attachment capability, meaning it accepts additional tool pieces so one power head can do more than edge. A 7-1/2-inch hardened steel blade cuts to an adjustable depth up to 2-1/2 inches, deeper than the 2-inch maximum on the WORX WG898, and a large guide wheel keeps the tool rolling along the sidewalk line. A variable trigger plus hi/lo speed settings let you dial power up or down so you trade cut for runtime as needed.

Owners are impressed with the raw output first — many describe the edger’s power as enormous and report cutting through dirt and grass with ease, and the cordless design means no gas cans, no exhaust and no pull cord. The kit includes a battery and charger, so it works right from the start. The large guide wheel is the sleeper feature here: it rolls the tool along the curb instead of forcing you to carry its weight, which takes pressure off the frame during long runs. The variable-speed trigger is the second quiet win, letting a light touch chew through thin growth without dumping power into a job that does not need it.

The number to weigh hardest is durability. A handful of customers note the tool breaking after about five hours of use, and battery life is a mixed topic — some find a single 60V pack adequate, others want more. That is the trade-off of high-power cordless edging: it does the work fast when it holds up, but you are depending on the motor to carry the load. For someone who does not mind the premium and wants a premium-class edger, the DCED472X1 delivers. For someone who does a hundred feet of sidewalk a few times a summer, a smaller cordless option is the more sensible spend.

Where it shines: the attachment-capable power head turns a 60V battery into a system, while the 7-1/2-inch hardened steel blade and adjustable depth deliver the deepest, fastest cut in this list.

The premium reality check: high-power cordless edging puts real load on the motor. For heavy or frequent use, owners should expect the tool to be worked hard — treat it well and it lasts.

Pick it when: you are already on the brand’s battery platform and want a deeper-cut, attachment-ready edger to expand with.

pass on it if: you only edge occasionally — a simpler cordless trimmer-edger keeps more money in your pocket for the same weekend job.

Understanding the Specs

Amp Rating and Cutting Power

On corded tools, the amp rating is how much current the motor draws — a 12 Amp motor on a corded edger delivers consistent torque the moment you squeeze the trigger. Higher amp ratings mean the blade can push through matted grass and hard soil without stalling. Cordless tools do not list amps at the motor; instead, look at the battery voltage and motor design. A brushless motor (one with no carbon brush contact points) generically runs cooler and more efficiently than a brushed equivalent, which usually shows up as more runtime per charge and longer motor life.

Cutting Width and Depth

Cutting width is the diameter the head clears in a single pass and is the number that determines how many trips you make along a sidewalk. A wider swath means fewer passes but a heavier head, while a narrower blade edger cuts a tighter, more defined trench. Depth is the setting that decides how deep the cut goes into the soil. Light maintenance edges need only a shallow cut, while a neglected edge may need a deeper setting to reset the line. Adjustable depth is the feature to look for if you want one tool to cover both jobs.

FAQ

Can a string trimmer really replace a dedicated blade edger along a sidewalk?
The two do different jobs. A string trimmer knocks down growth around fences, beds and trees, while a blade edger cuts a vertical trench along concrete that holds its line. Some models, like the BLACK+DECKER LSTE525 or the CRAFTSMAN CMCST901M1, convert between the two so one tool covers both. If your yard is edge-heavy along driveways and sidewalks, the deeper, harder cut of a dedicated blade tool is the difference you will notice most.
Do cordless edgers and trimmers have enough power to handle thick grass?
Yes, provided you match voltage to workload. Higher-voltage cordless tools, like the 80V Greenworks edger or the 40V BLACK+DECKER LST136, carry enough torque to cut overgrown grass along a curb. The lighter 20V models are best for regular growth and touch-ups, and they can bog down in a matted, long-neglected edge. If your goal is clearing a jungle, lean toward higher voltage or a corded tool.
How long does the battery actually last on a cordless edger or trimmer?
It depends on the button-sized number nobody advertises: the amp-hour rating of the pack and how hard you push the tool. Rated runtimes vary widely — the CRAFTSMAN CMCST901M1 is rated for up to 63 minutes on its 4.0 Ah battery, while the WORX WG898 is rated for up to 2800 feet of edging per charge. Thick grass and edging duty drain a battery faster than light trimming, so expect the lower end of the rated figure on tough jobs.
Is a corded edger better than cordless?
A corded tool runs all day and never loses power, which is why the WORX WG896 with its 12 Amp motor can handle a heavily overgrown edge without stopping. The trade-off is reach — you need an outdoor outlet and an extension cord long enough to cover your yard. If your property is large or you have no convenient outlet, cordless is the practical choice. If you edge the same sidewalk every week, corded often costs less to own and never needs a battery.
Why does my trimmer keep eating through string?
Two common causes: hitting the concrete or a hard edge with a running head, and winding the line onto the spool too loosely. Tight, even winding and a deliberate pace keep the string alive. Some auto-feed heads, such as the ones on the BLACK+DECKER 20V MAX LST300 and the 40V LST136, advance line as needed without bumping, which takes some of the guesswork out of it.
Will an edger work on decorative gravel or mulched beds?
A blade edger is built for the soil line against a hard edge — concrete, curb, asphalt. Running a steel blade through a gravel or mulch bed risks throwing loose material and dulling the blade quickly. For soft beds, a string trimmer is the safer tool. Use the edger where it is designed to work: along the seam between grass and a hard surface.
Can I use batteries from one brand’s tools on an edger from another brand?
No. Each brand’s batteries fit only its own power head and charger. That is why staying inside one line pays off. The WORX WG898 runs on the brand’s 20V Power Share batteries that also fit its other 20V tools, and the DEWALT DCED472X1 uses the brand’s 60V FLEXVOLT platform. If you already own a platform, buying a bare tool that shares it saves you from a duplicate battery and charger.
How deep should I set my edger?
Start shallow and go deeper only if you need to. A setting of about 1 to 1.5 inches resets a light edge, while a 2-inch or deeper setting digs a trench that holds through a season. The WORX WG896 gives you three settings — 1″, 1-1/4″, 1-1/2″ — and the WORX WG898 and Greenworks 80V offer adjustable depths up to 2 and 2.25 inches respectively. If you have buried wiring or irrigation lines near the edge, keep the depth shallow.
Do I need eye protection when using a string trimmer?
Yes. A spinning string head throws grass clippings, small pebbles and dirt, and those can hit you at speed. One owner running the Greenworks 24V trimmer reported getting hit in the glasses two or three times in a single session — a reminder that safety glasses or a face shield are worth wearing every time. Long sleeves and closed-toe shoes are also smart if you are trimming overgrown areas.
Is a wheeled edger easier to use than a straight trimmer?
A wheeled design helps on long straight edges because the wheel rolls along the sidewalk and keeps the cut line consistent, and it carries some of the tool’s weight. The WORX WG898 uses a dual-wheel design to keep the edger tracking straight, andthe DEWALT DCED472X1 leans on a large guide wheel for mobility along the curb. A straight trimmer offers more freedom around curves and obstacles, but a wheeled edger wins on a long, straight sidewalk.

Final Thoughts: The Verdict

The single best pick for most yards is the WORX WG896 Electric Lawn Edger — a 12 Amp corded blade that cuts a 7.5-inch trench at 4700 RPM and never needs a battery. If you already own the brand’s 20V Power Share batteries and want no cord at all, reach for the WORX WG898 Cordless Lawn Edger. And if your real need is one cordless tool that trims and edges a half-acre on a single charge, the BLACK+DECKER 40V LST136 earns its place with the power owners describe as rivaling gas.

Match the tool to the job — a blade edger for hard edges, a trimmer for overgrown beds — and you stop fighting your lawn every weekend.

How We Picked

We do not accept paid placement. Every pick is matched to a real buyer and a real use-case; we do not hands-on test units.

Sources & Methodology

Specifications: manufacturer listings and product documentation. Review insights: verified customer reviews, as of September 2026. Pricing: not shown on this page (it changes often); check the current price via the retailer link.

As an Amazon Associate, Gardening Beyond earns from qualifying purchases. This does not affect which products we feature.

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