Greenworks10 Amp 18-Inch Corded String Trimmer (Attachment Capable), 21142

Received it yesterday. Used it today on tall grass in my back yard. All i have to say is this thing has power. I finished the work in less time. With other machines that i had in the past it took me the whole day. With regards to reliability its still to early to tell so i will let you know as time passes with the usage. The spool is easy to put line. Bump feed work excelent. Good price. I bit heavy to carry (but comes with carrying straps). Overall im happy with the product and initial testing.

I wrote this long review because I really like this trimmer or I wound not waste my time, even though at 75 I have plenty of it.First of all this trimmer is heavy, it don't feel heavy holding it but using it as a tool it is a different matter. Having the motor at the top gives this tool pretty good balance and keeps the motor out of the dirt for long life unlike the cheaper trimmers. Seeing this tool in person you can see real quick that it is well built. Time will tell about the quality of the bearings and gears at the trimmer head. Since it has is a split shaft, if the trimmer end does fail, at least that accessory can be swapped out and motor end still kept and used with the new accessory.Lots of warnings in the owners manual to keep the American Feds happy but little else. It shows the string head disassembled but not how to do it. Here is how for the first time user. Looking at the bottom where the bump feed button is there are 10 slots in a circle--4 slots and then a wider slot, then 4 more slots and a wider slot. The two wide slots are opposite of each other and contain the release tabs. Pry each with a knife or a small common screw driver as you pull the two halves apart exposing the string compartment.I used the trimmer twice now, the motor is very powerful, maybe to powerful for small yard jobs. I "didn't" find that the original head wasted string at all, only bumped a few times for front yard which is going around shrubs and trees and then doing flower bed edging work at an angle. If you hold the trimmer at the proper angle the debris won't fly back at you as so many people worried about.After a very uncomfortable usage of this fine tool the first time I realized something had to change. Since the switch combination was not designed properly for easy usage like on my B&D hedge trimmer where the power switch keeps the lock out switch engaged until the power switch is released. I dealt with the lock out switch on top of the handle by defeating it with a Tye Wrap strap which then holds the switch permanently down--a 30 second fix.The trigger switch for power is rather hard to keep pulled, perhaps intentionally but I believe to much so for a long working day. Activating the trigger makes a sound like a micro-switch is being activated under the plastic trigger. That will be an interesting fix for another day. At least the trimmer is now usable for me. I dealt with far more dangerous things then this little trimmer for those appalled at defeating a safety device. That said I would not defeat any safety for a chain saw or hedge trimmer.I am using my emergency generator 15 amp service extension cords for this trimmer because it pulls some serious amps. Just because it seems to operate normal with a regular 16 gauge extension cord, especially a 100 foot one, it is not! Think of it like using a 16 gauge extension cord for a window air conditioner--you don't do that either.Since using the trimmer the first time I have purchased and installed the Echo Speed-Feed 400 string head. It is a direct replacement with no adapters needed. The 400 and the string inside seem very good after using it today.To sum up, this trimmer is a heavy duty tool that can wear you out if not physically fit. It wore me out but I still like it and recommend it

The Good: Lots of power, 10 amps is equal to a table saw or a 23 cc gas trimmer. Cuts through tough grass light brush easily. With 2 - 100' 10/3, 1 - 50' 12/3, 1 - 100' 14/3 extension cords I can cover my 3 acre property clearing areas I can't reach with my mower. Yeah it is a bit of a hassle dragging cords, but no exhaust fumes, no dealing with mixing gasoline and 2 cycle oil, no expensive batteries that don't last. Heck all the extension cord are cheaper then the 3 or 4 batteries you would need to cycle through to keep going all day, and I can still use the cords for other tools.The Bad: The string head is light weight and is difficult to load. The guard is an odd design and gets hung up in tall grass and brush, and can get you sucked in working around small trees. The handle is (to quote David Freiburger from Roadkill) utter garbage. Cheap, flimsy, and too tall. Swapped the head out for an aluminum fixed head with a M10x1.25 left hand threaded nut and a 1/2" spacer, and works great with 0.095 trimmer cord. While not recommended, the guard was removed, works much better, but you will need face and body protection!!! Bought a replacement handle on Amazon, a lot more solid with a lower height. Better control of all that torque.This is a good machine with some junk parts attached. Fortunately they are easy to change making this a 5 star unit. I also fear they may stop making these machines, so I bought 2 more to have reserves, that is what I think of them.

OVERALLMost corded-electric weed-trimmers look cheap and poorly made and lacking a powerful motor. Some research brought me to this one and I'm quite satisfied. I've owned this model for a couple of years now. It was so good I bought one for my dad as well. Small suburban life means the cord isn't really a problem, and it's simpler than heavy batteries that go bad over time. I have a 14 gauge 50' cable; but with this 10A you could probably go to 16 gauge wire and be fine so long as you kept it under 50'.This thing has PLENTY of power to rip through tall weeds and clean up edges. Big reason I got this was dual-feed + the highest amp. Should last a long time, though I mistakenly thought it was a true A/C motor, but they use a rectifier to convert A/C to D/C to a brushed DC motor. Not sure if this trimmer has a built-in over-current/thermal protection circuit, but haven't ran into any issues with moderate usage on 90-degree days.The actual trim wire used is pretty thin, so you do go through the cord pretty quickly, but it cuts effectively—especially with the dual feed.It doesn't have a variable-speed trigger so if you want to go slower than max RPM, you just need to keep tapping the trigger a certain frequency to achieve a slower desired RPM. No big deal.OTHER ATTACHMENTSSince buying this, I've purchased two separate attachments, the rotary tiller (used twice) and and the pole-saw attachment (These are Ryobi "Expand It" series attachments). Both worked very well and the motor had no shortage of power or bogging down (cutting 3" mesquite limbs). Tiller is geared very low so it doesn't turn super fast but so long as soil is relatively moist it will do the job. I wouldn't use these for heavy-duty work for a business or anything, but for light duty stuff around the house they've been great so far.