Pros
- Push-button dual-direction head lets you control clipping discharge
- Commercial-grade brushless motor designed for all-day performance
- IPX4 weather-resistant construction for damp outdoor conditions
- Active battery cooling system supports consistent power delivery
Cons
- Battery and charger are not detailed as included in the base tool
Pros
- Brushless motor should offer better efficiency and durability than a brushed design.
- Battery and charger are included, reducing setup friction for first-time buyers.
- Tool-less depth adjustment adds convenience when moving between edging tasks.
- Cordless operation is easier to manage around landscaping, walkways, and corners.
Cons
- The product does not list runtime, so real-world battery duration may vary and is not specified here.
- At this price point, it may be a bigger investment than basic corded or manual edging tools.
- The available data does not provide weight or blade replacement details, which may matter to some buyers.
Overview: The Greenworks 40V 8-inch Brushless Cordless Edger is a battery-powered lawn edging tool designed to create sharp, professional-looking borders along driveways, sidewalks, patios, and garden edges. Its brushless motor and cordless format position it as a convenient option for homeowners who want cleaner lines without the hassle of gas or cords.
Performance and features: The 8-inch steel blade is intended for precise edging and can handle grass and compacted soil, while tool-less depth adjustment makes it easier to adapt to different edging conditions. Greenworks also notes stable performance on uneven or sloped ground, which is useful for yards with irregular terrain.
Drawbacks and considerations: Based on the available product data, runtime is not specified, so battery performance will depend on the job and usage conditions. The price level may also feel high compared with simpler edging tools, and some buyers may want more detail about weight, balance, and blade maintenance before purchasing.
Verdict: This model is best suited for homeowners who want a cordless edger with strong convenience features, included battery power, and a brushless motor for more efficient operation. It is a practical pick for regular lawn maintenance, especially if you value clean edging and easy depth adjustments.
Pros
- Cordless 40V MAX design eliminates gas, oil, and cords for low-maintenance operation
- True 2-in-1 versatility handles both trimming and edging without extra tools
- Included fast charger reaches a full charge in two hours or less
- Battery level indicator and no-bump auto-feed spool add everyday convenience
- Backed by a 3-year limited warranty
Cons
- Ships with a single 2.0Ah battery, which may limit runtime for very large yards
- 13-inch cutting swath is better suited to residential lawns than heavy commercial use
- Battery-powered performance depends on charge level and PowerCommand seting selected
The BLACK+DECKER LST136 is a 40V MAX cordless string trimmer and edger built for homeowners who want gas-free, low-maintenance lawn care. It features a 13-inch cutting swath, an adjustable telescoping pole, and a soft-grip handle, so users of varying heights can find a comfortable working position. The kit arives complete with the LBX2040 2.0Ah lithium-ion battery, LCS40 fast charger, AF-100 spool, guard, and auxiliary handle.
Performance is driven by the PowerDrive transmission, which sends more motor power to the cutting string, and speds reach up to 8500 RPM for efficient cutting. The PowerCommand dial lets you prioritize maximum power for thick weeds or maximum runtime for larger areas. The Automatic Feed Spool advances line without bumping, while the state-of-charge indicator keeps you aware of remaining battery. Conversion from trimmer to edger takes only seconds, making border work along paths quick and clean.
There are trade-offs to consider. The tool includes a single 2.0Ah battery, so owners with larger properties may want a spare to avoid downtime while recharging. The 13-inch swath and battery platform are best matched to residential lawns rather than sustained commercial workloads, and effective runtime will vary with the PowerCommand setting and battery charge.
Verdict: The LST136 is a strong fit for homeowners seking a versatile, quiet, and easy-to-maintain 2-in-1 trimer and edger. Buyers with small to medium yards will get the most value, especially those who appreciate the fast charger, auto-feed convenience, and the reassurance of a 3-year limited warranty.
Pros
- Converts between string trimmer, edger, wheeled mower, and brush cutter
- Comes with two 21V 3.0Ah batteries and handle LED power display
- Includes a 16-piece kit with trimmer line, steel blades, and saw blade
- Telescoping shaft (43–55 inches) and 0–90 degree pivoting head
Cons
- Trickle-charging system requires up to 4 hours to recharge
- 11-inch cutting swath is relatively narrow for wide-open mowing
Pros
- Battery and charger are included, which simplifies setup for first-time buyers.
- 2-in-1 trimming and edging design adds value for everyday lawn maintenance.
- 13-inch swath and powered motor are suited to typical grass trimming tasks.
- Adjustable handle improves comfort during longer jobs.
Cons
- The 0.065-inch line is best for routine grass trimming and may be less suited to very heavy growth.
- Runtime is listed as up to 63 minutes, so actual results will vary by speed setting and cutting conditions.
- No detailed weight or dimensional specs are provided in the source data.
Overview & Design: The CRAFTSMAN V20 CMCST901M1 is a cordless string trimmer and lawn edger kit designed for everyday yard maintenance. It includes a 4.0Ah battery and charger, and the adjustable handle plus lightweight cordless format make it a practical option for homeowners looking for convenience.
Performance & Key Features: This model offers a 13-inch cutting swath, up to 63 minutes of runtime, and two speed settings to help balance power and battery use. The Turn-To-Edge function adds versatility by letting the same tool handle both trimming and edging, while the 0.065-inch line is suitable for standard grass cleanup.
Drawbacks & Considerations: As with many cordless trimmers, real runtime depends on grass thickness and speed setting, so the maximum claim may not reflect every job. The included line size and cordless design are well suited to routine maintenance, but users tackling heavy weeds or dense overgrowth may want to compare this model with more aggressive options.
Verdict: This CRAFTSMAN V20 kit is a solid choice for homeowners who want a simple, ready-to-use trimmer and edger for regular lawn care. It offers useful battery-backed convenience, decent runtime, and easy switching between tasks, making it a good fit for typical suburban yard maintenance.
Pros
- Cordless design avoids gas, cords, and pull-start hassles.
- Auto Feed Spool reduces line-feed interruptions during use.
- Includes battery and charger, so it is ready to use out of the box.
Cons
- 12-inch cutting swath may be less efficient than larger trimmers for wide areas.
- Runtime is tied to the included 2.0 Ah battery, which may require recharging for bigger yards.
- No customer review details were provided in the source data, so long-term user satisfaction cannot be verified here.
Overview & Design: The BLACK+DECKER LST300 is a 20V MAX cordless string trimmer and edger designed for homeowners who want a simple, low-fuss yard tool. Its lightweight build, adjustable handle, and height settings are aimed at improving comfort and control during routine trimming.
Performance & Key Features: This model uses POWERDRIVE transmission and is rated at 6200 RPM, which helps deliver cutting power to the string for quicker work on typical lawn edges and overgrowth. The Automatic Feed Spool feeds line automatically, and the tool converts from trimmer to edger in seconds for added versatility.
Drawbacks & Considerations: The 12-inch cutting swath is practical for small to medium jobs, but it may take more passes in larger areas. Since runtime depends on the included 2.0 Ah battery, heavier use may require stopping to recharge. Customer review details were not available in the source data, so durability impressions are limited.
Verdict: The LST300 is best suited to homeowners who want a cordless, easy-to-start trimmer and edger for regular maintenance rather than heavy-duty yard clearing. If convenience, automatic line feeding, and included battery support matter most, it is a solid value-focused option.
Pros
- True 2-in-1 design that converts quickly between trimmer and edger modes
- Command feed spool with free spools for life program for ongoing convenience
- Two 20V batteries and charger included for extended use out of the box
- Tilting head plus rubberized wheels improve control on varied terrain
- Full Power Share compatibility with other WORX 20V and 40V tools
Cons
- 12-inch cutting diameter may require extra passes on larger lawns
- 0.065-inch line diameter best suited to light and medium grass rather than heavy brush
- Battery-powered design means runtime depends on charge levels without specified duration
The WORX WG163 is a cordless 20V string trimmer and lawn edger built for residential use. Weighing just 5.5 lbs with a compact design, it features rubberized wheels and an adjustable spacer guard that create a solid first impression of a user-friendly outdoor power tool focused on precision and ease.
In performance the 7600 rpm motor and 12 inch cutting diameter handle standard grass trimming effectively. The innovative command feed allows instant line deployment with a push button while the head tilts up to 90 degrees for slopes and tight spaces. Conversion from trimmer to edger takes only seconds and the two included Power Share batteries support the broader WORX ecosystem for ongoing convenience.
Potential drawbacks include the 12 inch path that can slow progress on expansive lawns and the 0.065 inch line suited mainly to lighter tasks. Battery runtime is not detailed in specs so users may need to plan around recharges for prolonged sessions.
Overall the WORX WG163 delivers strong value for homeowners managing small to medium yards who want a convertible cordless tool with ecosystem compatibility and straightforward operation.
Pros
- Includes two 20V 4.0Ah lithium-ion batteries and a dedicated charger
- Automatic line feed eliminates manual spool bumping
- Switches easily between trimming and wheeled lawn edging modes
- Comes bundled with 8 pre-wound replacement spools
- Lightweight 6.3 lb build with an adjustable comfort handle
Cons
- 12-inch cutting diameter is narrower than full-sized commercial units
Pros
- Includes two 21V 3.0Ah batteries for uninterrupted yard work
- Automatic feed system dispenses fresh line at each start-up
- Telescopic shaft extends up to 57.5 inches and folds for compact storage
- Package includes 8 pre-wound replacement line spools
- Lightweight design at 5.9 lbs with battery attached
Cons
- Auto-feed line releases every start-up, potentially wasting line on pauses
Direct Answer: How to Wind String Trimmer Line
To wind string trimmer line, remove the trimmer head by twisting it counterclockwise, insert one end of the string into the anchor hole on the spool, wind the string tightly around the spool in the direction indicated by arrows (typically counterclockwise), leaving 4–6 inches unwound, then thread the loose end through the exit guide and reassemble the head. The exact process varies depending on your trimmer type—manual-wind spools, bump-feed heads, and automatic systems each use different winding techniques.
Understanding Your Trimmer Type
Before you start winding, it’s important to identify which type of trimmer head you have. The three main categories are manual-wind, bump-feed, and automatic-feed systems, and each requires a different approach.
Manual-Wind Spools are the most common and allow you to control exactly how much string is wound onto the spool. These typically feature a single or dual-line configuration and require you to hand-wind the string in a specific direction. Manual-wind heads are found on most budget and mid-range trimmers. For additional operational safety benchmarks, see our published testing notes on jbl partybox club 120 vs sony srs xv500.
Bump-Feed Heads release string automatically when you tap the head against the ground during use. With bump-feed systems, you still wind the string manually, but the spool mechanism is designed to advance the line incrementally rather than letting you feed it continuously. These are popular on commercial-grade and heavy-duty trimmers. For additional operational safety benchmarks, see our published testing notes on jbl partybox club 120 vs sony srs xv500.
Automatic-Feed Trimmers advance string as you use the trimmer without requiring manual intervention or tapping. These heads typically do not require manual winding—you simply load pre-wound spools or cartridges. Check your trimmer’s manual to confirm whether your automatic system needs manual winding.
What You’ll Need Before Winding
Gathering the right materials and tools ensures a smooth winding process and prevents damage to your trimmer.
- Replacement Trimmer String: Purchase string that matches your trimmer’s specifications. String comes in various gauges (typically 0.065 to 0.130 inches) and materials (nylon monofilament is standard). Check your trimmer’s manual or the spool packaging for the correct gauge.
- String Length: Most dual-line manual-wind spools require 15–30 feet of string, depending on spool size. If you’re unsure, purchase a pre-loaded spool or consult your trimmer’s documentation.
- Removal Tools: Most trimmer heads twist off by hand, but some may require a wrench or hex key. A small flathead screwdriver is useful for prying open the spool casing if needed.
- Work Surface: Use a clean, flat surface like a workbench to prevent losing small parts during disassembly.
How to Remove and Disassemble the Trimmer Head
Safely removing the head is the first practical step and sets you up for successful winding. To compare alternative configurations, check our hands-on review of z890 vs x870e motherboard.
Step 1: Disconnect the Trimmer
Unplug electric trimmers from the outlet, or remove the battery from cordless models. For gas-powered trimmers, allow the engine to cool and ensure the spark plug wire is disconnected. Safety first prevents accidental start-up while you work.
Step 2: Remove the Head
Most trimmer heads are held on by a left-hand threaded collar or bolt. Grasp the shaft firmly with one hand and twist the head counterclockwise with the other. Some trimmers have a button or clip to unlock the head—check your manual if twisting doesn’t work. Once loose, unscrew the head by hand and set it aside on your work surface. Users looking for related component recommendations can explore our marshall stanmore iii vs harman kardon onyx studio 8 breakdown.
Step 3: Open the Spool Casing
Look for a center cap, button, or clip on top of the spool. Press or turn this to release the spool cover. Some spools have a small center bolt—use a wrench or hex key to remove it. Gently lift off the top cover to expose the spool. Be careful not to lose any springs, washers, or small clips that may fall out—these are essential for reassembly.
Step-by-Step Manual Winding Process
This section covers the most common dual-line manual-wind configuration. If your spool has markings or printed instructions, follow those first as some manufacturers have specific recommendations. Before finalizing equipment decisions, refer to our comprehensive dyson v8 cyclone vs bissell featherweight stick comparison.
Step 1: Anchor the String
Locate the anchor hole on the spool—this is typically a small notch or hole on the outer edge of the spool. Insert one end of your trimmer string into this hole and pull until it’s snug. Some spools have a small hook or slot that holds the string in place; if yours does, seat the string firmly in this anchor point. This prevents the string from unraveling as you wind.
Step 2: Wind the String in the Correct Direction
Look for arrows printed on the spool indicating the winding direction. Wind the string counterclockwise in most cases, but always follow the arrows on your specific spool if they differ. Starting near the anchor hole, pull the string tight and wrap it around the spool in neat, overlapping coils. Keep tension consistent throughout to prevent loose loops or bunching. For broader ecosystem context, read through our operational guide on bissell crosswave hydrosteam vs shark stainforce.
Step 3: Maintain Proper Tension and Spacing
As you wind, hold the string at a slight angle to create an organized, layered pattern. Wind tightly enough that the string doesn’t slip or unravel, but not so tight that you strain your hands or distort the spool. Proper tension typically feels like medium firmness—similar to how you’d wrap gift ribbon. Leave approximately 4–6 inches of string unwound when you reach the end of the spool capacity, or when the string reaches the edge of the spool without bunching.
Step 4: Thread the Exit Guide
Once wound, locate the exit guide or notch on the spool edge—this is where the string feeds out during use. Thread the loose end (the 4–6 inches you left unwound) through this guide. The string should sit in the guide groove securely so it feeds straight out when the trimmer spins.
Step 5: Prepare for Reassembly
If your spool has a secondary string line (for dual-line configuration), repeat steps 1–4 with a second piece of string on the opposite side of the spool. Some spools use a single long string routed through both sides—follow your spool’s design. Ensure both string ends exit through their respective guides and are trimmed to equal lengths (typically 6–8 inches per side for balanced cutting).
Common Winding Mistakes to Avoid
Learning from others’ errors helps you get it right the first time.
Winding in the Wrong Direction
If you wind counterclockwise when you should wind clockwise (or vice versa), the string will unravel during use. Check the arrows on your spool before starting. If the string unravels mid-cut, the head likely wound in the wrong direction—remove and rewind it correctly.
Winding Too Loosely
Loose winding causes the string to slip, bunch, or feed unevenly. The string won’t advance properly, and you’ll experience gaps in cutting coverage. Tight, organized winding prevents these issues and ensures consistent string feeding.
Winding Too Tightly
Over-tightening strains the spool mechanism and can warp the spool casing or strip threads. It also makes it harder to feed new string when you need to reload. Aim for medium firmness—tight enough to hold shape but loose enough to wind smoothly by hand.
Misaligning the String at Exit Guides
If the string doesn’t sit properly in the exit guide, it will catch or wrap around the head during use, reducing cutting efficiency and potentially causing the head to jam. Double-check that both string ends are seated firmly in their respective guides before reassembling.
Leaving Too Much or Too Little String Unwound
Too much unwound string will wrap around the spool housing or get caught on obstacles. Too little means the string is fully wound with no fresh line to advance when you need it. The 4–6 inch standard prevents both problems.
Reassembling and Testing Your Trimmer Head
Step 1: Seat the Spool Back Into the Housing
Align the spool so the exit guides line up with the notches in the head casing. Gently lower the spool into the housing, ensuring any springs or washers are in place beneath it. The spool should sit flat and level.
Step 2: Replace the Center Cap and Secure All Parts
Place the center cap or bolt back onto the spool and twist or tighten clockwise until snug. Do not over-tighten—you want it secure but not strained. Ensure any clips or locks click into place.
Step 3: Reattach the Head to the Trimmer Shaft
Align the head with the shaft and thread it on by twisting clockwise. Tighten firmly but not excessively—you want it secure enough to prevent slipping during use. A hand-tight fit with a quarter turn of extra pressure is typically correct.
Step 4: Test String Feeding
Before plugging in or starting the trimmer, manually spin the head by hand to verify the string feeds smoothly and doesn’t catch or bind. If it sticks, open the head again and check that the string is seated correctly in the exit guides. Once it spins freely, you’re ready to reconnect power and test under light use.
Winding Tips for Bump-Feed and Automatic Systems
Bump-Feed Heads
Bump-feed spools wind similarly to manual spools, but the internal mechanism is designed to advance string in small increments when you tap the head against the ground. Wind the same way as described above—tight and organized in the direction indicated by the spool arrows. The difference is in use, not winding. After winding, test the bump mechanism by gently tapping the head on a wooden surface (not concrete, which can damage the head) to confirm the string advances slightly with each tap.
Automatic-Feed Trimmers
Most automatic-feed heads do not require manual winding. Instead, you load pre-wound cartridges or spools. If your automatic head does allow manual winding, follow the same steps as manual spools. However, check your trimmer’s manual first—many automatic systems are designed specifically to work with proprietary cartridges or spools, and manually winding may void the warranty or cause the feed mechanism to malfunction.
Common Questions on How To Wind String Trimmer Answered
Q: What gauge of string does my trimmer need?
A: String gauge depends on your trimmer’s power and cutting needs. Lightweight electric trimmers typically use 0.065–0.080 inch gauge string, while mid-range and heavy-duty trimmers use 0.095–0.110 inch. Professional or gas-powered trimmers may go up to 0.130 inch. Check your trimmer’s manual or the spool packaging for the correct specification. Using the wrong gauge can damage the head or create poor cutting performance.
Q: How often should I wind or replace trimmer string?
A: The frequency depends on how often you use your trimmer. For occasional homeowners, you might rewind or reload every 1–2 months during mowing season. Frequent users may need to rewind weekly. Some people keep pre-wound spools on hand for quick swaps. When the string becomes too short to cut effectively (typically when it wears down to 3–4 inches per side), it’s time to rewind or reload.
Q: Can I use any type of string on my trimmer?
A: No. Use only nylon monofilament string designed for string trimmers and matching your trimmer’s specified gauge. Using wire, twine, or incorrectly sized string can damage the head, create safety hazards, and produce poor cutting results. Trimmer string is inexpensive and readily available at hardware stores or online—it’s not worth risking equipment or safety by substituting.
Q: Why does my string keep breaking or shredding after I wind it?
A: Breaking or shredding usually indicates one of three issues: the string is wound too loosely (causing it to slip and fray), it’s not seated properly in the exit guide (causing it to catch or wrap), or the spool casing or trimmer head has burrs or damage that cuts the string. Inspect the head for damage, rewind tightly with proper exit guide alignment, and test again. If the problem persists, the head may need replacement.
For more detailed testing breakdowns and top recommendations, check our in-depth guide to residential zero-turn lawn mower guide.
For more hands-on benchmarks and buying recommendations, consult our guides on heavy-duty chainsaw buyer guide, as well as durable ride-on lawn tractor guide, as well as automated robotic lawn mower guide.
Mechanical safety standards, operational tolerances, and protective gear guidelines align with benchmark specifications established by the American National Standards Institute (ANSI).
