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BLACK+DECKER String Trimmer with Auto Feed, Electric, 6.5-Amp, 14-Inch (BESTA510)
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Purchase options and add-ons
Brand | BLACK+DECKER |
Power Source | Corded Electric |
Color | black |
Item Weight | 6.34 Pounds |
Cutting Width | 14 Inches |
About this item
- Automatic Feed Spool (AFS) technology of the edger/trimmer eliminates bumping for hassle-free line feeding that helps you work without interruptions
- The 6.5 amp motor and POWERDRIVE Transmission of the grass cutter provide maximum performance when trimming through the toughest weeds, grass, and overgrowth
- 2-in-1 trimmer/edger with wheeled edge guide - just rotate to convert from lawn trimmer to wheeled edger
- Lightweight design with adjustable handle and height positions provide maximum comfort and control
- Cord retention system prevents accidental cord disconnection
- 14-inch cut path gets the job done fast. Rpm : 8000rpm
Frequently bought together

Frequently purchased items with fast delivery
From the manufacturer
BLACK+DECKER 6.5 Amp 14 in. AFS Electric String Trimmer/Edger

Featuring 2 lawn tools in 1 convenient package, this Electric String Trimmer/Edger makes it easy to maintain your yard. The AFS AUTOMATIC FEED SPOOL keeps the trimmer line moving smoothly, which means no bumping for you, and the corded design with torque-boosting POWERDRIVE Transmission promises unlimited power, no matter how long the job takes.
Features and Benefits of the BLACK+DECKER 6.5 Amp 14 in. AFS Electric String Trimmer/Edger
INTEGRATED CORD RETENTION
Prevents unintentional unplugging for uninterrupted power.
2in1 DESIGN
Easily converts for use as a corded trimmer or wheeled edge trimmer.
AFS AUTOMATIC FEED SPOOL
Eliminates constant stopping and starting while trimming by smoothly feeding trimmer line with no bumping required.
Product guides and documents
Videos
Product information
Brand | BLACK+DECKER |
---|---|
Power Source | Corded Electric |
Color | black |
Item Weight | 6.34 Pounds |
Cutting Width | 14 Inches |
Product Dimensions | 8.5"L x 4.88"W |
Speed | 8000 RPM |
Assembly Required | No |
Pattern | Solid |
Global Trade Identification Number | 00885911535021 |
Style | String Trimmer |
Number of Items | 1 |
UPC | 885911535021 |
Size | One Size |
Item Weight | 6.34 pounds |
Department | Unisex-Adult |
Manufacturer | BLACK+DECKER |
ASIN | B077Z78YQX |
Country of Origin | China |
Item model number | BESTA510 |
Customer Reviews |
4.4 out of 5 stars |
Best Sellers Rank | #389 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden) #2 in String Trimmers |
Is Discontinued By Manufacturer | Yes |
Warranty & Support
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BLACK+DECKER String Trimmer with Auto Feed, Electric, 6.5-Amp, 14-Inch (BESTA510)
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Product Description
Take on tough weeds, grass, and overgrowth with this BLACK+DECKER 6.5 Amp 14-inch AFS Electric Edge Trimmer. With the edging wheel, you can put the finishing touches on the edges of your lawn around driveways, sidewalks, and flower beds. Automatic Feed Spool technology of BLACK+DECKER trimmer eliminates bumping for more string, and a cord retention system helps prevent accidental disconnection while working.
Top Brand: BLACK+DECKER
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This Item BLACK+DECKER String Trimmer with Auto Feed, Electric, 6.5-Amp, 14-Inch (BESTA510) | Recommendations | |||||
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Price | -9% $49.00$49.00 Typical: $54.00 | $15.99$15.99 | $38.88$38.88 | -14% $29.99$29.99 List: $34.99 | -20% $47.96$47.96 Typical: $59.95 | $13.97$13.97 |
Delivery | Get it as soon as Wednesday, May 7 | Get it as soon as Wednesday, May 7 | Get it as soon as Monday, May 19 | Get it as soon as Saturday, May 10 | Get it as soon as Wednesday, May 7 | Get it as soon as Wednesday, May 7 |
Customer Ratings | ||||||
Sold By | Amazon.com | US-KXX | Amazon.com | MAXLANDER | sun eastern trading limited | Haibro® Store Direct US |
power source | Corded Electric | ✗ | Corded Electric | ac | Battery Powered | ac dc |
cutting width | 14 inches | 0.06 inches | 12 inches | 9 inches | 12 inches | 0.06 inches |
assembly required | ✗ | ✗ | ✓ | ✓ | ✓ | ✓ |
Important information
Wear eye protection, long sleeves, and sturdy shoes. Keep a safe distance from others while operating the trimmer.
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers find the string trimmer powerful and easy to use, with one mentioning it works well for small lawn areas. They appreciate its lightweight design and consider it good value for money, with one noting it offers more features for half the price. The trimmer performs well for lawn work, cutting through everything without issues. Durability receives mixed feedback, with some describing it as a tough workhorse while others report it falling apart. The auto feed feature also gets mixed reviews, with some finding it nice while others say it doesn't work well.
AI-generated from the text of customer reviews
Customers find that the string trimmer works well, with several noting its impressive power, and one mentioning it performs particularly well on small lawn areas.
"Powerful electric trimmer--if you have a long enough cord for your yard. The wheel on it, makes for easy edging...." Read more
"...This 6.5amp corded unit is a lot louder and more powerful and if you live with St Augustine and or Bahia grass, this unit is the business...." Read more
"Love this!Would give it more starts if I could,this thing is an unstoppable force even against sticker bushes.anything pencil sized or smaller it..." Read more
"powerful, and better than an electric one that needs charged all of the time. a few heavy-duty outdoor cords and you're good to go!" Read more
Customers find the string trimmer easy to use and put together, with one customer noting it makes short work of edging.
"...Appears very well made, and really easy to use. Adjustable for all sizes. The string-spool is very easy to remove & install. Highly recommended." Read more
"...A weed-eater is a pretty simple mechanism, so I took a chance and it seems to have paid off...." Read more
"...But after that, it slips on easy. So yeah. Its a great trimmer. Very powerful but it goes through the spool incredibly fast...." Read more
"...my house.but 15 pack of wire spools is 15 bucks on here.super easy to install new wire.love this thing.no bumping auto wire feed.the 15 pack string..." Read more
Customers appreciate the string trimmer's weight, describing it as lightweight and balanced.
"...initially skeptical it could do the job when I unboxed it, but its lightweight is a plus...." Read more
"For a light weight trimmer it does a great job . And does a good job of edging too...." Read more
"Experience as of 8/1/24 Pros: ease of use, weight, power, price point. Cons: There is no way to get out of spending a fortune on string...." Read more
"Powerful, lightweight, great quality!" Read more
Customers find the string trimmer offers good value for money, with several noting it's a superior tool for their time and money, and one mentioning it's an excellent deal for replacement trimmer line.
"...to me, but needs to get done, and to have gotten a superior tool for my time and money. I'd call it my Best Buy of the year so far...." Read more
"...I haven't tested them yet, but the price difference is so great that I'm going to give them a chance." Read more
"As a 75 year old 122 pound woman, this was the best $49 I've ever spent!..." Read more
"Good product good price" Read more
Customers find this string trimmer performs well, particularly for lawn work and cutting weeds, with one customer noting it matches the performance of gas-powered models.
"...But after that, it slips on easy. So yeah. Its a great trimmer. Very powerful but it goes through the spool incredibly fast...." Read more
"...Faith restored, there are good string trimmers in the world...." Read more
"...Don't get me wrong, you get what you pay for and it handles the trimming job well but again you will start seeing it's deterioration come quickly." Read more
"...Apart from the issues mentioned, its a good trimmer and does the job." Read more
Customers have mixed experiences with the string trimmer's durability, with some describing it as a tough workhorse while others report it breaking within three months of use.
"Easy to use and assemble. There was a small broken part before assembling, but it didn't prevent me from putting it together and operation." Read more
"...The wheel on it, makes for easy edging. Appears very well made, and really easy to use. Adjustable for all sizes...." Read more
"...It gets the job done but they don't last very long. It's not a professional grade trimmer and therefor they don't last...." Read more
"...a few heavy-duty outdoor cords and you're good to go!" Read more
Customers have mixed opinions about the string trimmer's auto feed feature, with some finding it nice while others report that it leaves a lot to be desired and doesn't work well.
"...bucks on here.super easy to install new wire.love this thing.no bumping auto wire feed.the 15 pack string was stronger than what came with the..." Read more
"...Maybe it was just old, but the auto-feed didn't work well, the line was always running out, and I spent more time rewinding the spool than cutting..." Read more
"Excellent. It is just what I like. It is very easy to operate. String auto feeds...." Read more
"Mine doesn't automatically feed." Read more
Customers have mixed experiences with the string trimmer's cutting performance, with some reporting it works well through tough grass and thickets, while others mention issues with the string not cutting properly.
"...the BESTA510 string trimmer is easy to use and really cuts well through the toughest grass, foliage and plants that I need to cut down...." Read more
"...At first the wheel on the side of it confused me. It was hard to trim around fences, the shed, patio, trees and house with that wheel...." Read more
"...This ensures a continuous cutting experience without the need for manual adjustments or interruptions. 3...." Read more
"...It developed the problem of shooting out a lot of trimmer line. I would have to stop and cut the excess off or it would wind around the shaft...." Read more
Reviews with images

Worth it. Broken part upon arrival.
Top reviews from the United States
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- Reviewed in the United States on April 5, 2025Style: String TrimmerVerified PurchasePowerful electric trimmer--if you have a long enough cord for your yard. The wheel on it, makes for easy edging. Appears very well made, and really easy to use. Adjustable for all sizes. The string-spool is very easy to remove & install. Highly recommended.
- Reviewed in the United States on June 4, 2023Style: String TrimmerVerified PurchaseFor the price, I was not expecting much. I have a small yard and could not justify the price or storage space for a gas-powered or larger unit.
So, I took a gamble on Black & Decker. There were a few negative reviews of this product, but reading them ( as I always do ), it seems like most of the 1s were shipping problems, broken on delivery, or user error.
A weed-eater is a pretty simple mechanism, so I took a chance and it seems to have paid off.
This took "literally" 3-4 minutes to unbox and set up. I did not even have to look at the manual, though I did glance at it before I used it to see if there was anything important I missed. I missed nothing.
I circled the yard clearing up weeds and along the house and brick edging in 10-15 minutes. Got some nice exercise and sun and the unit gets compressed for storage and is easily put away.
I recommend this for light yard duty, and perhaps even a larger yard if you are on a budget and probably will not abuse the tool. Just be patient and let the string do the cutting.
Oh, and did I mention this thing is super-light? I was initially skeptical it could do the job when I unboxed it, but its lightweight is a plus.
As always, if I have a problem with this, it breaks or turns out to be too expensive to operate ( some reviewers have claimed the ate up a whole spool of filament in their first use - mine did not ) I will return and update my review.
Very ... no, exceedingly happy not to have spent a ton of money on something that is not that important to me, but needs to get done, and to have gotten a superior tool for my time and money. I'd call it my Best Buy of the year so far. Rating 5/5 - Highly recommended.
- Reviewed in the United States on April 26, 2025Style: String TrimmerVerified PurchaseHaving been used to B&Ds battery units, i wasnt expecting the performance of this corded trimmer. After 6 years of using a B&D battery trimmer, and suffering the last two with battery charging issues, it finally crapped the bed. So i got this, sick of charging batteries and having them last under 10 mins a charge. And if i am honest, the battery units didnt have the power for the tough stuff.
This 6.5amp corded unit is a lot louder and more powerful and if you live with St Augustine and or Bahia grass, this unit is the business.
It doesn't have the trigger lock like the battery units so be careful, also it uses a two prong cord not the expected 3.
It cuts through overgrowth with ease especially if you are edging.
The edging wheel is further out than the battery model, so it helps cut through taller st augustine for edging.
The only negative is the auto spool. Hence the4 and not 5 stars. I went through the included spool doing half of .12 acres. Luckily i had a spare spool from the battery trimmer, so i was happy they are compatible.
The extension cord held in place. Only under stretching the cord did it get unplugged.
But watch out not to go over the cord. The trimmer will pick it up quick and wrap it around itself quick. Ask me how i know 😄
Assembly was easy, the only screw is for the trimmer guard and its already screwed into the guard so youll have to unscrew it. The adjustable handle was easy to put on after you realize you have to push both sides in on the trimmer to slip the handle on. But after that, it slips on easy.
So yeah. Its a great trimmer. Very powerful but it goes through the spool incredibly fast.
- Reviewed in the United States on April 26, 2025Style: String TrimmerVerified PurchaseLove this!Would give it more starts if I could,this thing is an unstoppable force even against sticker bushes.anything pencil sized or smaller it would chop it and mulch it before it even hit the ground.bigger stuff with a little patience and taking smaller bites at it would handle those as well.yes it will go thru a spool of string.took 1.5 spools for my yard and the large patch of black berry bushes that were trying to eat my house.but 15 pack of wire spools is 15 bucks on here.super easy to install new wire.love this thing.no bumping auto wire feed.the 15 pack string was stronger than what came with the trimmer.super powerful trimmer.its a great buy!
- Reviewed in the United States on August 19, 2023Style: String TrimmerVerified PurchaseI had an old Greenworks string trimmer that I found in the basement after I moved into my new home. Maybe it was just old, but the auto-feed didn't work well, the line was always running out, and I spent more time rewinding the spool than cutting down weeds. I had almost lost my faith in string trimmers entirely. You can spend $300 on one, but how much better are they? I didn't know. This Black & Decker was only $50, and although it's corded, my roommate convinced me it was worth not having to do the dance of recharging batteries, plus having full 110v power. Some (easy) assembly required out of the box, and this thing was basically plug & play. I did read through the owner's manual first, which gave amateur me some confidence through a few helpful tips. I use it not only for cutting down weeds, but also for cleaning out weeds from the cracks in my sidewalk, and the edger wheel is very helpful for that. More importantly, the line had no problems all the way to the end of the spool. Faith restored, there are good string trimmers in the world.
That being said, be aware that the line it comes with isn't very long. My lawn is medium-size, and it ran out about halfway through. The Black & Decker replacement spools are $10 / 30 ft (much longer), but it goes through line, so this could really add up. Replacing the spool was easy, and I was able to finish my lawn with plenty line to spare. A quick search on Amazon reveals off brand spools at $15 / 12-pack. I haven't tested them yet, but the price difference is so great that I'm going to give them a chance.
- Reviewed in the United States on April 27, 2025Style: String TrimmerVerified Purchasepowerful, and better than an electric one that needs charged all of the time. a few heavy-duty outdoor cords and you're good to go!
Top reviews from other countries
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Leonel cantuReviewed in Mexico on August 8, 2024
5.0 out of 5 stars Muy buen articulo, feliz con mi compra
Style: String TrimmerVerified PurchaseEsta muy pro y el hecho de que no tenga que estarse recargando es lo mejor que se conecte por cable. Solo es muy cierto que los carretes se acaban super rápido eso si, pero aqui encuentras hasta repuestos de 12 carretes.
- Amazon CustomerReviewed in Canada on October 26, 2022
3.0 out of 5 stars Weed eater
Style: w/ (3) replacement spoolsVerified PurchaseI like the wheel for trimming, but I don’t like that there is only one string for cutting instead of 2 and the string therefore runs out more quickly and has to be restrung
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Alexis Santoyo CarrilloReviewed in Mexico on August 28, 2020
5.0 out of 5 stars Excelente relación calidad / precio
Style: String TrimmerVerified PurchaseMe gusta que solo tenga 1 hilo. Así es más fácil de reponer el hilo, también la tapadera la mejoraron lo cual hace más fácil colocarla. La potencia del motor excelente!! Solo la he usado 1 vez durante 2 horas. Es importante en este tipo de productos darles tiempo de descanso cada 10 o 15 min dependiendo lo que la estés forzando.
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RicardoReviewed in Mexico on May 25, 2024
4.0 out of 5 stars Buen tamaño, ligera y buena potencia !
Style: String TrimmerVerified PurchaseBuena potencia y fácil de usar.
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Adalberto celayaReviewed in Mexico on April 23, 2025
5.0 out of 5 stars excelente relación calidad precio
Style: String TrimmerVerified Purchaseexcelente producto
funciona de maravilla como bordeadora
la mejor que he tenido y vaya que han sido muchas