The 8 Best Trimmer Spools of 2026

These BLACK+DECKER AF-100-3ZP replacement spools are a game-changer for owners of compatible auto-feed string trimmers. Each pack includes three 30-foot spools of 0.065-inch line, factory-wound for immediate use. They suit beginner and experienced gardeners who want to keep lawn edges crisp and garden beds weed-free without the frustration of manual winding.

In real-world gardening, the auto-feed system shines by advancing string smoothly as needed, letting you focus on trimming around flower beds, walkways, and fences. Users rave about the easy pop-in installation that revives trimmers quickly, saving time on weekend yard chores. The line holds up well for regular grass and small weeds, delivering clean cuts that enhance your outdoor space.

Build quality is solid, with reliable winding that resists tangles outdoors. The lightweight spools are simple to handle and store, backed by a 2-year warranty for peace of mind. While durable for typical home use, they perform best on lighter tasks.

Limitations include quicker wear on dense overgrowth, where heavier line might be needed. Overall, this is a practical choice for efficient lawn care.

Final verdict: Grab these if you own a compatible BLACK+DECKER trimmer. They make maintenance effortless and keep your yard looking sharp all season.

Installation is straightforward: turn off your trimmer, remove the old spool, insert the new one aligning the tabs, and advance string as needed. No tools required, and it takes under a minute.

• Inspect spool before use for proper winding.
• Clean trimmer head after each session to prevent debris buildup.
• Store spools in a dry place to avoid moisture damage.
• Replace when line runs low to maintain cutting power.

For longevity, avoid forcing the trimmer into thick weeds, which can stress the line.

These spools fit most BLACK+DECKER auto-feed string trimmers, including popular models like:

• LST series (LST120, LST136, LST140, LST201, LST220, LST300, LST400)
• NST series (NST1018, NST1024, NST1118, NST1810, NST2018)
• GH series (GH400, GH500, GH600, GH610, GH900, GH912)
• Others: BESTA510, CST1000, ST7000, ST7700, and more.

Check your model number against the full list to confirm fit. Perfect for reviving older trimmers.

Maximize results with these gardener-approved techniques:

• Trim at a 30-45 degree angle for clean edges along sidewalks and beds.
• Work in sections, starting from the outside in, to avoid scalping grass.
• Use short bursts on weeds to conserve line.
• Edge weekly for a manicured look that boosts curb appeal.
• Combine with mowing for a polished lawn in under an hour.

Ideal for small to medium yards where precision matters.

This EVENTRONIC 10-pack offers AF-100 compatible weed eater string refills tailored for Black+Decker electric trimmers, perfect for U.S. homeowners maintaining neat lawn edges, garden borders, and pathways. With 240 feet of 0.065-inch line across eight spools, plus two caps and two springs, it suits beginner to experienced gardeners who want hassle-free trimming without constant re-spooling.

In real-world use, the upgraded nylon polyamide provides superior abrasion resistance and flexibility, stretching on hard impacts like fences or rocks while boosting cutting power through thick grass. Users report smooth centrifugal feeding that keeps work flowing, ideal for quick yard cleanups or prepping flower beds for planting.

Build quality shines outdoors with high tensile strength and a deterioration cycle of 2-5 years, ensuring spools stay reliable in storage sheds. The included extras fix common cap wear issues, extending trimmer life for season-long performance.

Limitations include its specific size fit, so check your model, and it may not hold up as well against extremely woody overgrowth. For everyday lawn and garden tasks, though, it excels.

Overall, grab this pack if you own a compatible Black+Decker trimmer, it delivers practical durability and convenience for thriving outdoor spaces.

Pop off the old spool cap on your Black+Decker trimmer, remove the spent spool, and snap in a new EVENTRONIC AF-100 refill. Advance line by tapping the trimmer head during use for automatic feed.

• Store extra spools in a dry shed to maintain line quality.
• Use on low speed for delicate garden edges, higher for tougher lawn areas.
• Replace caps if feeding stops, using included springs for secure fit.
• Avoid winding thicker line to prevent jams.

These steps make swaps take under a minute, keeping your trimming efficient.

Regular care extends your Black+Decker trimmer and these refills' life. Clean debris from the spool head after each use to ensure smooth feeding.

• Inspect caps and springs monthly; replace with pack extras as needed.
• Wind fresh line if reusing spools, sticking to 0.065-inch diameter.
• Battery models: Charge fully before long sessions to avoid weak performance.
• Winter storage: Keep spools cool and dry for 2-5 year usability.

Follow this for uninterrupted yard work all season.

Ideal for small to medium lawns up to half-acre, edging driveways, trimming around trees, and clearing garden beds.

• Great for urban backyards with fences and hardscapes.
• Handles annual weeds and grass, not heavy brush.
• Pair with mulching for weed-free veggie patches.
• Quick for post-mow touch-ups on suburban lots.

Enhances curb appeal without professional help.

The VIABRICO Square Orange String Trimmer Line is a heavy-duty 0.095-inch nylon weed eater string in a 330-foot spool, perfect for gardeners maintaining larger yards, fields, or overgrown edges. It suits beginner to experienced homeowners who want reliable performance without constant reloading.

Key features shine in real-world use: the square cut provides sharper edges that power through thick grass and weeds quicker than round lines, while the bright orange color helps you spot it easily in the lawn. Users praise its efficiency on acreage, noting it cuts woody stems and holds up against fences and concrete better than expected.

Built from tough commercial-grade nylon, it offers superior strength with less vibration and noise, making long sessions more bearable. The material proves durable for everyday lawn care, though some find it slightly brittle on the toughest brush.

Limitations include ensuring your trimmer accepts 0.095-inch line, and it may break faster on extreme overgrowth. Overall, this is a smart pick for practical yard upkeep; stock up for season-long trimming and enjoy neater gardens with less hassle.

To get the most from your string trimmer line, soak the spool in water overnight before loading; this softens it for better flexibility and reduces breakage.

• Cut the line to your trimmer's recommended length and feed it through the head following your model's instructions.
• Wind evenly to avoid tangles, starting from the center hole outward.
• Trim at a 45-degree angle, keeping the head above ground to prevent premature wear.
• Clean the spool after use and store in a dry place to maintain strength.

Avoid hitting hard surfaces repeatedly, and advance line as needed for consistent cutting power.

Master your lawn edges and weed control with these practical techniques using square string trimmer line.

• Start with lighter grass, then tackle thicker weeds to preserve line life.
• Work in sections: edge beds first, then open areas for even results.
• Adjust trimmer speed for dense spots; slower for precision, faster for bulk cutting.
• Combine with mowing for a polished look, focusing on hard-to-reach spots.
• Safety first: wear goggles, long pants, and keep bystanders clear.

Regular trimming prevents overgrowth, promoting healthier lawns and gardens.

This bulk 330-foot spool excels based on your property scale.

• Small yards (under 1/4 acre): Plenty of line for weekly edging and spot trimming; economical for light use.
• Medium yards (1/4-2 acres): Ideal for frequent whacking around beds, fences, and paths without quick depletion.
• Large properties (2+ acres): Bulk supply matches heavy-duty needs, like field weeds or ongoing maintenance.

Not suited for ultra-light electric trimmers; best with models handling 0.095-inch line.

As a fellow gardener, I've tested plenty of string trimmer replacements, and this Generep 6-pack of 0.065-inch auto-feed spools stands out for Greenworks users and owners of similar cordless trimmers like Black+Decker or Ryobi. It's perfect for U.S. homeowners with modest backyards who want to keep lawn edges crisp without the hassle of winding line by hand.

The key here is the automatic feed mechanism paired with flexible nylon line that delivers consistent performance on overgrown grass, garden borders, and driveway cracks. Each 16-foot spool pops in easily, letting you get back to trimming faster than fumbling with bulk line.

Build quality feels solid for everyday outdoor use; the blue spools resist cracking in sun and moisture, and the included cap keeps everything secure. Durability matches what you'd expect from budget-friendly replacements, holding up through multiple mows.

Limitations include the shorter line length, which means more frequent swaps on bigger lots, and it's strictly for single-line models. Still, for most home gardens, it's a practical choice.

Overall, grab this if you own a compatible trimmer and hate line hassles. It keeps your lawn looking sharp with minimal effort, just like sharing tools with a neighbor.

Pop the old spool out by twisting the cap counterclockwise, then snap in a new Generep spool until it clicks. Advance line by tapping the trimmer head while running.

• Clean spools after use to remove grass clippings and dirt.
• Store in a dry shed to prevent moisture damage.
• Inspect for wear before each session; replace if line frays.
• Avoid overfeeding to extend spool life.

This routine keeps your trimmer performing like new all season.

Works with most Greenworks single-line models like 21212, 21272, 29252, 29092 (cap 3411546A-6). Also fits:

• Black+Decker AF-100 series
• Craftsman CMCST900, CMESTA900 series
• Ryobi One+ 18V/24V/40V trimmers
• Worx WG163/WG180, Hyper Tough HT-19 series

Always verify your model's spool specs for a perfect match.

Start at the outer edges and work inward for neat lines. Tilt the trimmer head 30 degrees for sidewalks and beds.

• Use short bursts to avoid line breakage on thick weeds.
• Trim after mowing for polished results.
• Pair with mulching for weed-free gardens.

These habits make your yard the envy of the neighborhood.

This 20-pack of trimmer spool lines is designed as a reliable replacement for Worx string trimmers using WA0010 spools, fitting models like WG150, WG163, and WG170 series. It's perfect for U.S. homeowners with small to medium yards who rely on Worx trimmers for edging lawns, clearing garden borders, and maintaining tidy outdoor spaces.

In real-world gardening, the 0.065-inch nylon line shines with its twisted design that harnesses centrifugal force for smooth, efficient cuts through grass and light weeds. The automatic feeding system lets you swap spools quickly without winding, saving precious time during weekend yard work. Higher abrasion resistance and tensile strength mean fewer breaks, even around fences or driveways.

Build quality stands out with pliable material that flexes on impact, paired with durable ABS caps for secure fits. Outdoors, it holds up well in typical home use, reducing noise and vibrations for a more enjoyable trim. While optimized for Worx, always verify your model to avoid mismatches.

Limitations include its focus on Worx compatibility, so it's not ideal for other brands or heavy commercial jobs. For everyday gardeners, though, it delivers consistent performance.

Overall, these refills are a smart choice for Worx owners seeking better efficiency and less hassle. Stock up to keep your lawn trimmer ready for the growing season and enjoy crisp edges around your backyard oasis.

To install, pop off your Worx trimmer's old spool, snap in a new one with the cap, and let the automatic feed handle the rest during use. Trim at a 45-degree angle for best results on grass and weeds around garden beds.

• Store spools in a dry shed to prevent moisture damage.
• Clean trimmer head after each use to avoid line jams.
• Replace caps if cracked for secure performance.
• Avoid overfeeding line to extend spool life.

Regular checks keep your setup running smoothly through summer mowing.

Choose 0.065-inch line for balanced power on light brush without straining your Worx motor. Twisted lines like these cut cleaner and quieter than round ones.

• Pair with fresh trimmer oil for optimal runtime.
• Trim in dry conditions to minimize breakage.
• Edge beds first, then tackle open lawn areas.
• Keep a spare pack handy for mid-job swaps.

These habits maximize efficiency for vibrant, weed-free yards.

Ideal for yards under 1/2 acre where Worx trimmers excel in detail work like bed edging and path clearing. The 20-pack lasts multiple seasons for weekly upkeep.

• Small yards (<1/4 acre): Perfect for quick sessions.
• Medium yards (1/4-1/2 acre): Handles routine maintenance.
• Large yards: Supplement with a mower for bulk cutting.

Focuses on precision for beautiful, maintained outdoor living.

As a fellow gardener who's spent countless hours taming overgrown edges, I appreciate a reliable trimmer line that just works. The AAnleolife AC80RL3 spools are direct replacements for RYOBI 18V, 24V, and 40V cordless auto-feed trimmers, delivering 11 feet of .080-inch twisted nylon per spool. Ideal for U.S. homeowners with modest yards, these make quick work of lawn borders, garden paths, and weed control without the frustration of jamming or frequent breaks.

The standout is the innovative twisted shape and premium BASF-sourced Nylon 66, which cuts grass and light weeds with a level, vibration-free slice. In real-world use, it powers through fence lines and driveway edges better than basic lines, feeding smoothly via auto-advance. Gardeners report fewer advancements needed, keeping sessions efficient for busy weekends.

Build quality shines with tough ABS spools that resist impacts and corrosion, holding up to outdoor storage and rough handling. The even winding ensures no tangles, and extras like caps add convenience. While it excels in typical backyard scenarios, very dry line might snap quicker on abrasive surfaces, so a quick water soak helps longevity.

Overall, these spools restore your RYOBI trimmer's edge for crisp lawn lines and tidy beds. If you're maintaining a family yard or veggie patch, grab a pack, pop one in, and enjoy pro-level results without the hassle.

Installing is simple for beginners: remove the old spool cap, pop out the empty cartridge, snap in the new AAnleolife spool, and replace the cap. No tools needed, and precise sizing ensures a snug fit on RYOBI heads.

• Prime the line by advancing a bit before first use to clear any air pockets.
• Store spools in a dry shed to prevent moisture buildup; avoid direct sun to maintain flexibility.
• Soak dry spools in a bucket of water overnight if breakage increases, a tip from experienced users for extended life.
• Clean trimmer head after each use to remove grass buildup and prolong spool performance.

Regular checks keep your setup running smoothly all season.

Maximize these spools with smart techniques for a manicured yard.

• Hold the trimmer at a 30-degree angle for clean edging along sidewalks and beds.
• Work in short passes on thick weeds to avoid overload and line wear.
• Pair with fresh battery power for consistent speed, enhancing the twisted line's cutting edge.
• Trim after mowing when grass is dry for neater results and less clumping.
• Use as an edger around trees and flower beds for pro landscaping looks.

These habits turn routine maintenance into enjoyable yard pride.

Designed for RYOBI auto-feed models (18V, 24V, 40V), these spools fit models like AC80RL3 replacements.

• Confirmed user success with Hart 20V and Greenworks trimmers.
• Check your head model; works best with standard auto-feed systems.
• Not for bump-feed or fixed-head trimmers.

Always test fit first for peace of mind.

This 10-pack of YWTESCH AF-100 replacement spools delivers pre-wound 0.065-inch trimmer line specifically for Black+Decker weed eaters. It's a game-changer for homeowners with small to medium lawns who want to edge borders and clear weeds without the frustration of winding string. Whether you're a beginner gardener or seasoned yard maintainer, these spools make quick work of overgrown edges around flower beds and walkways.

Key features shine in real-world use: the autofeed mechanism advances line automatically as you trim, powered by centrifugal force for efficient cutting through grass and light brush. The upgraded nylon polyamide material offers flexibility and impact resistance, stretching on hard surfaces like concrete or rocks. Users love how it powers through tough spots without fraying quickly, keeping your yard looking sharp with minimal effort.

Build quality stands up to outdoor rigors, with spools designed for high-speed operation and abrasion resistance that outlasts basic lines. The included extra caps and springs add convenience for on-the-spot repairs. While it performs reliably for most tasks, heavy-duty thick weeds might require occasional line checks.

Overall, these spools earn high marks for convenience and performance. If you own a compatible Black+Decker trimmer, stock up on this pack to keep your lawn pristine all season long.

To install, remove your old spool, pop in the new AF-100, and secure with the cap and spring. Run the trimmer at full speed briefly to activate autofeed and set line length.

• Trim in short passes over dense areas to avoid overload.
• Clean spools after use to remove grass buildup.
• Store extras in a dry spot to prevent moisture damage.
• Replace if line frays; always wear safety gear.

For longevity, avoid hitting hard objects repeatedly and inspect for wear before each session.

These AF-100 spools fit a wide range of Black+Decker trimmers, ensuring broad usability for your yard tools.

• GH series: GH400, GH500, GH600, GH610, GH900, GH912
• ST series: ST6600, ST7000, ST7200, ST7700, ST7701, ST8600, ST9000
• CST series: CST1000, CST1100, CST1200, CST2000
• LST series: LST120, LST136, LST140, LST201, LST220, LST300, LST400, LST420, LST522
• Others: MTC220, MTE912, NST1018, NST1024, NST1118, NST1810, NST2018, NST2118, BESTA510, BESTA512, BESTE620, LSTE523, LSTE525

Maximize your trimmer's potential with these practical strategies for a healthier lawn.

• Edge first along sidewalks and beds for clean lines.
• Hold at a 30-degree angle to scalp grass evenly.
• Trim after mowing when grass is dry for best cut.
• Work in sections to prevent trimmer overheating.

Combine with mulching to nourish soil and reduce future weeds.

This 10-pack of YWTESCH AF-100 replacement spools delivers pre-wound 0.065-inch trimmer line specifically for Black+Decker weed eaters. It's a game-changer for homeowners with small to medium lawns who want to edge borders and clear weeds without the frustration of winding string. Whether you're a beginner gardener or seasoned yard maintainer, these spools make quick work of overgrown edges around flower beds and walkways.

Key features shine in real-world use: the autofeed mechanism advances line automatically as you trim, powered by centrifugal force for efficient cutting through grass and light brush. The upgraded nylon polyamide material offers flexibility and impact resistance, stretching on hard surfaces like concrete or rocks. Users love how it powers through tough spots without fraying quickly, keeping your yard looking sharp with minimal effort.

Build quality stands up to outdoor rigors, with spools designed for high-speed operation and abrasion resistance that outlasts basic lines. The included extra caps and springs add convenience for on-the-spot repairs. While it performs reliably for most tasks, heavy-duty thick weeds might require occasional line checks.

Overall, these spools earn high marks for convenience and performance. If you own a compatible Black+Decker trimmer, stock up on this pack to keep your lawn pristine all season long.

To install, remove your old spool, pop in the new AF-100, and secure with the cap and spring. Run the trimmer at full speed briefly to activate autofeed and set line length.

• Trim in short passes over dense areas to avoid overload.
• Clean spools after use to remove grass buildup.
• Store extras in a dry spot to prevent moisture damage.
• Replace if line frays; always wear safety gear.

For longevity, avoid hitting hard objects repeatedly and inspect for wear before each session.

These AF-100 spools fit a wide range of Black+Decker trimmers, ensuring broad usability for your yard tools.

• GH series: GH400, GH500, GH600, GH610, GH900, GH912
• ST series: ST6600, ST7000, ST7200, ST7700, ST7701, ST8600, ST9000
• CST series: CST1000, CST1100, CST1200, CST2000
• LST series: LST120, LST136, LST140, LST201, LST220, LST300, LST400, LST420, LST522
• Others: MTC220, MTE912, NST1018, NST1024, NST1118, NST1810, NST2018, NST2118, BESTA510, BESTA512, BESTE620, LSTE523, LSTE525

Maximize your trimmer's potential with these practical strategies for a healthier lawn.

• Edge first along sidewalks and beds for clean lines.
• Hold at a 30-degree angle to scalp grass evenly.
• Trim after mowing when grass is dry for best cut.
• Work in sections to prevent trimmer overheating.

Combine with mulching to nourish soil and reduce future weeds.

These Black+Decker AF-100-2 autofeed replacement spools are a game-changer for anyone with a compatible Black & Decker string trimmer. Each 2-pack includes 30 feet of 0.065-inch factory-wound line that snaps right into your trimmer, perfect for beginner gardeners or busy homeowners tackling lawn edges, garden beds, and walkway borders without the hassle of manual winding.

In real-world use, the autofeed system shines by using centrifugal force to advance string smoothly as you trim, keeping your sessions efficient and frustration-free. Whether you're maintaining a suburban lawn or tidying up around perennials, these spools deliver consistent performance that helps you achieve crisp lines every time.

Build quality is solid for outdoor exposure; the spools are lightweight yet sturdy, resisting tangles and feeding reliably through multiple uses. They hold up well in damp grass or after storage in a garden shed.

Limitations include compatibility only with listed Black & Decker models and a line diameter suited for lighter duty, so for thick brush, you might need heavier line options. Overall, if you own a matching trimmer, these spools are a practical must-have for effortless yard upkeep. Grab a pack to keep your trimmer ready for the next mowing season.

Installing these spools is simple: remove your trimmer's empty spool, snap in the new AF-100-2, and you're ready to trim. Advance string as needed by tapping the trimmer head on the ground.

• Store spools in a dry place to prevent moisture damage.
• Clean trimmer head after each use to avoid clogs.
• Replace spool fully when line runs low for best performance.
• Avoid over-tightening during installation to ensure smooth feeding.

For longevity, inspect for wear after 5-10 uses and keep backups on hand for peak growing season.

These spools fit a wide range of Black & Decker autofeed string trimmers, ensuring you have the right replacement ready.

• BESTA510, BESTA512, BEASE620
• CST1000, CST1200, CST2000
• GH400, GH500, GH600, GH610, GH900, GH912
• LST120, LST136, LST140, LST201, LST220, LST300, LST400, LST420, LST522
• LST1018, LSTE522, LSTE523, LSTE525
• NST1018, NST1024, NST1118, NST1810, NST2018, NST2118
• ST7000, ST7200, ST7700, ST7701, ST8600, ST9000

Check your model number to confirm fit before purchasing.

Maximize these spools with smart techniques for a pro-level lawn.

1. Trim in dry conditions for cleaner cuts and less string breakage.
2. Start with higher engine speed for tougher grass edges.
3. Work in sections: lawn perimeter first, then garden beds.
4. Angle trimmer 30 degrees for precise edging along sidewalks.

Pair with regular mowing for a polished backyard oasis that impresses neighbors.

This 20-pack of trimmer spool lines is designed as a reliable replacement for Worx string trimmers using WA0010 spools, fitting models like WG150, WG163, and WG170 series. It's perfect for U.S. homeowners with small to medium yards who rely on Worx trimmers for edging lawns, clearing garden borders, and maintaining tidy outdoor spaces.

In real-world gardening, the 0.065-inch nylon line shines with its twisted design that harnesses centrifugal force for smooth, efficient cuts through grass and light weeds. The automatic feeding system lets you swap spools quickly without winding, saving precious time during weekend yard work. Higher abrasion resistance and tensile strength mean fewer breaks, even around fences or driveways.

Build quality stands out with pliable material that flexes on impact, paired with durable ABS caps for secure fits. Outdoors, it holds up well in typical home use, reducing noise and vibrations for a more enjoyable trim. While optimized for Worx, always verify your model to avoid mismatches.

Limitations include its focus on Worx compatibility, so it's not ideal for other brands or heavy commercial jobs. For everyday gardeners, though, it delivers consistent performance.

Overall, these refills are a smart choice for Worx owners seeking better efficiency and less hassle. Stock up to keep your lawn trimmer ready for the growing season and enjoy crisp edges around your backyard oasis.

To install, pop off your Worx trimmer's old spool, snap in a new one with the cap, and let the automatic feed handle the rest during use. Trim at a 45-degree angle for best results on grass and weeds around garden beds.

• Store spools in a dry shed to prevent moisture damage.
• Clean trimmer head after each use to avoid line jams.
• Replace caps if cracked for secure performance.
• Avoid overfeeding line to extend spool life.

Regular checks keep your setup running smoothly through summer mowing.

Choose 0.065-inch line for balanced power on light brush without straining your Worx motor. Twisted lines like these cut cleaner and quieter than round ones.

• Pair with fresh trimmer oil for optimal runtime.
• Trim in dry conditions to minimize breakage.
• Edge beds first, then tackle open lawn areas.
• Keep a spare pack handy for mid-job swaps.

These habits maximize efficiency for vibrant, weed-free yards.

Ideal for yards under 1/2 acre where Worx trimmers excel in detail work like bed edging and path clearing. The 20-pack lasts multiple seasons for weekly upkeep.

• Small yards (<1/4 acre): Perfect for quick sessions.
• Medium yards (1/4-1/2 acre): Handles routine maintenance.
• Large yards: Supplement with a mower for bulk cutting.

Focuses on precision for beautiful, maintained outdoor living.