Black & Decker BESTA512CM 12 in. 3-in-1 Compact Electric Lawn Mower

Black & Decker Model: bdknbesta512cm
ratings        (11) Write A Review

$10 off $50 on BLACK+DECKER Products! Use code: BD10 See Details

See More
See Less
free shipping

Estimates For

alert warning icon

  • In Stock


CA Residents
Prop 65 Warning
compliance warning icon
WARNING: Cancer and Reproductive Harm --
Black & Decker BESTA512CM 12 in. 3-in-1 Compact Electric Lawn Mower Black & Decker Model: bdknbesta512cm
price for vip customer


Product Features & specs :

Black & Decker BESTA512CM 12 in. 3-in-1 Compact Electric Lawn Mower

Mow, trim, and edge with this 12 in. 3-in-1 Compact Electric Lawn Mower. Its powerful 6.5 amp motor with POWERDRIVE transmission handles tough weeds and overgrowth with ease. Mow the lawn, then detach the mower deck to use it as a string trimmer. Finish the job by rotating the trimmer head to use it as an edger. Automatic Feed Spool and a lightweight design with adjustable handle make it easy and comfortable to get lawn care done.
  • Easily converts from mower to trimmer to edger for 3 tools in 1
  • The 6.5 amp motor and POWERDRIVE Transmission provide maximum performance when trimming through the toughest weeds, grass, and overgrowth
  • Automatic Feed Spool (AFS) lets you continue working without bumping or having to stop to adjust the spool
  • Lightweight design with adjustable handle and height positions provide maximum comfort and control
  • Cord retention system prevents accidental cord disconnection
What’s Included:
  • String Trimmer - BESTA512
  • Detachable Mower Deck - MTD100
  • Spool - AF-100
  • Auxillary Handle
  • Guard
Power Source
Cutting Height (Min.)
1.60 in
Drive System
Cutting Path
12 in
UL Safety
CSA Safety
Wifi compatibility
Starter Type
Case Included
Case Type
Bluetooth Compatibility
Motor Type
Mulching Capability
Speed Controls
Cutting Height (Max.)
2.40 in
ETL Safety
9.9 lbs.
Warranty Term
2 Year

Reviews :

3.9 / 5.0
11 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
I wish I never bought it.
I was not impressed. You can not adjust the wheels. If you try to adjust the wheels to the lowest setting. You can not push the unit. You have to hold the whole unit up to use it. I would not of bought it. If I knew I could not use it the way it shows.
June 13, 2020
just ok as mini lawn mower,better trimmer/edger
bought corded version by accident,wanted battery version,read reviews about battery versions and decided to keep corded,plus liked wheel edger guide on corded version vs. wire on battery version. Mower deck seems safer, but not for use in high grass. Adjustable length handle ok for me,short for taller person. Already had corded auto feed B & D Grass Hog
September 12, 2019
Originally posted at
Compact and very light
I have a small lawn and don't have the space to store a full size mower. This is a perfect solution. The combination edger is really easy and I don't have to buy a separate tool to produce professional-looking results. I just hose off the trimmer and base after each use, and store them separately. Makes the job of mowing/edging really easy. Great invention.
August 26, 2019
Originally posted at
I'm sorry I waited so long to get my 3in1 lawn mower. I wasn't sure it would do the job but bot was I wrong. Next time I'll not wait B&D is the best.
August 24, 2019
Originally posted at
using it is as easy as vacuuming
I have a lot of older Black and Decker battery powered tools that still do their thing, but the batteries are showing their age. I needed a longer lasting string trimmer, so I decided on electric this time. This compact mower/trimmer is fantastic as far as how well it works. I have a small area on one side of the house that the riding mower cannot get to. Using this with the base attached feels like you are vacuuming. It doesn't pick up the grass, but it sure does cut it down. It has two height settings. The trimmer comes out of the base for close trimming. If you don't mind the extension cords, which you don't have to worry about cutting in half, then give this 3 in 1 mower/trimmer a try.
August 23, 2019
Originally posted at
Clever set up. Just keep it clean.
This is a great idea. I now can cut, weed wack, and edge without the hassle of going back in the shed for different tools. The base comes off too easily if I don’t keep grass out of the connection points, but that’s been manageable so far.
June 25, 2019
Originally posted at
Perfect for the job
I have a small yard I mean small. Takes more time to start my mower then it does to just mow the grass. It's perfect and does a extremely outstanding job.
June 6, 2019
Originally posted at
Seriously my favorite yard tool now! Love it. Perfect.
I love this mower/trimmer. I have a very rocky, sticky, hilly, (aka crappy) yard. This thing does the trick better than any other mower I have tried. The trimmer does come out of the base sometimes but you just pop it back in and it's fine. I got the plug-in kind because I didn't want to deal with running out of battery power, etc. I am happy that I did because it never dies. No more messing around with gas and oil, no more stinky fumes, no more pulling my arm out of the socket to start the darn thing. The only thing you need to buy for this baby is some spools of the trimmer string, press the button and you're mowing. It is actually more like vacuuming your yard! Super easy and even a little fun considering I really hated mowing with a traditional mower. The blade mowers always cut too low and messed up my already sparse grass because of the hills. This sweet little puppy just glides smoothly and leaves the top level of soil in tact for a nicer looking mow. It is very light weight as well. Cuts through my weeds like butter, mows right over the rocks, stumps, and sticks without skipping a beat. Seriously, get it. I love mine.
May 26, 2019
Loved this but did not hold up
Black and Decker woyuld not allow me to post my original review because their system would not post it because it said it had profanity in it. It did not - I guess your APP doesn't work either. I did not and would not post such a thing, the mower would not stay connected to the base after a few uses
August 27, 2018
Originally posted at
Just right for small jobs.
I bought this to mow my small backyard. I have only used it once so far but it’s a tough little machine. It even took care of the long grass
that hasn’t been mowed in a while. It just takes longer because the cutting radius is just the size of a weed eater.
July 18, 2018
Originally posted at

Q & A :

Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 2 questions Browse 2 questions and 2 answers
Can this cut grass 1/8 inch so I can make a putting green?
Eric F on Jun 9, 2019
BEST ANSWER: Your question will be best answered by the manufacturer, who can provide you with the accurate information. The number to reach the technician is 1-800-544-6986.
Are batteries available for purchase with this mower?
A shopper on Apr 12, 2019
BEST ANSWER: No, this item is a corded mower. The item will not need any batteries.