Best Commercial String Trimmer Tested by a Professional Gardener

Rock walls, front steps, garden beds, fences – there are plenty of grassy spots in your yard that cannot be reached with a lawnmower. The only way to make sure your property looks neat all year round is to use the very best commercial string trimmer.

Product
Top Pick
Milwaukee 2725-21HD 18V M18 String Trimmer
Budget Pick
Husqvarna 324L 4-Cycle 18" Cutting Path Gas...
Prime
-
Pros
Eco-friendly.
X-Torq technology lowers emissions and smell.
Top Pick
Product
Milwaukee 2725-21HD 18V M18 String Trimmer
Prime
-
Pros
Eco-friendly.
My preview
Budget Pick
Product
Husqvarna 324L 4-Cycle 18" Cutting Path Gas...
Prime
Pros
X-Torq technology lowers emissions and smell.
My preview

To save you the trouble of having to go through hundreds of commercial weed eater reviews and tons of descriptions, I have compiled a list of top-4 products that I like the best and find most helpful both for personal use and for performing commercial-grade jobs.

Best Commercial String Trimmer Reviewed: Top-4 Products to Suit Any Budget

  1. Milwaukee Elec Tool 2725-21HD 18V M18 String Trimmer – Best Eco-Friendly Professional Weed Eater
  2. No products found. – Best Budget Commercial Grade Weed Eater
  3. Husqvarna 324L 4-Cycle 18 – Ultralightweight Professional Weed Eater
  4. Honda 647620 35.8cc Gas 17 in. Straight Shaft String Trimmer/Edger – Overall Best Commercial Weed Eater

Here is my pick of the best professional weed trimmer models that will make short work of your lawn-trimming tasks:

1. MILWAUKEE 2725 – Best Eco-Friendly Professional Weed Eater

Ever since I tried working the MILWAUKEE 2725 string trimmer last summer, it has been my second most loved piece of equipment for minor trimming tasks and more labor-intensive gardening jobs. Driven by a lithium-ion battery, the tool is not only every bit as powerful as the Honda model above but is also a much more ecological option.

This industrial weed eater boasts a perfectly balanced build that prevents fatigue after using it for hours, and its handle is long, so you do not have to bend over even if you are a 6’ guy. The brushless motor offers improved performance, and the 9 amp battery allows for around an hour of uninterrupted run time. Try this tool if you are seriously into landscaping and do not mind spending an extra buck on something this powerful and safe for the planet.


ADVANTAGES:
  • Great build quality;
  • Excellent ramp-up time;
  • Height-adjustable handle;
  • Eco-friendly;
  • Powerful and durable.
DRAWBACKS:
  • No shoulder strap attached;
  • Costly.

2. ECHO SRM-225i – Best Budget Commercial Grade Weed Eater

No products found.

This little fellow packs an impressive punch of helpful features like a highly efficient U-turn bump head or a full crank. Upon first trying it, I noticed how much easier its start was, compared to the models with legacy pull technology. It is not as high-powered as its closest competition but can still get surprisingly much work done in little time.

While not the lightest commercial string trimmer out there, the affordable price and stable performance make it a favorable trade-off. Consider paying ECHO SRM-225i some attention if you are looking for an inexpensive yet capable unit to handle multiple commercial and residential gardening tasks.


ADVANTAGES:
  • Hassle-free operation;
  • Well-balanced and sturdily built;
  • Simple maintenance;
  • Affordable.
DRAWBACKS:
  • Somewhat heavyweight.

3. Husqvarna 324L – Ultralightweight Professional Weed Eater

Although I have held this tool only once, I do remember how impressed I was at the time with its rakishly powerful 4-stroke 25cc engine performance that would give 7000rpm at its top speed. The best features of the unit include an 18-inch bump-feed trimmer head and a comfortable grip. I like how well-balanced and stable it feels and how quietly it works despite the robust motor.

Husqvarna 324L 4-Cycle 18 Cutting Path Gas String Trimmer 1Compared to other straight-shaft commercial grass trimmer models, this one is super lightweight and does not give you terrible backache even after using it for hours. From what I hear, this Husqvarna unit rarely has carburetor issues, which alone is a good enough reason to try it.


ADVANTAGES:
  • Easy-to-start;
  • Well-positioned loop handle;
  • X-Torq technology lowers emissions and smell;
  • Superb fuel efficiency.
DRAWBACKS:
  • Attachments are purchased separately.

4. Honda 647620 – Overall Best Commercial Weed Eater

 Honda 647620 35.8cc Gas 17 in. Straight Shaft String Trimmer/Edger

No products found.

There is a good reason why the Honda 647620 model has peaked at the top of my best string trimmer list today. I have been using this one for over three years now, tasking it with some heavy-duty jobs around the garden, and I can honestly say it leaves up to its excellent reputation.

This gas-powered beauty with a 4-stroke engine heart can do a wide variety of landscaping tasks – from regular trimming to clearing some seriously thick brush. Its dimensions are handy, although the 17-pound trimmer gets a bit heavy if you have to carry it around for a long time when trying to cover a large acreage. The thing that I admire most, of course, is how neatly and precisely it cuts. The trimmer goes through the thickest of grass like it is nothing!

I recommend picking Honda 647620 if you have an average-to-large lawn with many nooks and corners that need an extra bit of care and attention. It is going to be an investment you will not regret any time soon.


ADVANTAGES:
  • Superb quality-to-price ratio;
  • Durable and resilient;
  • Great maneuverability;
  • Top-notch shock absorption;
  • Easy-to-operate.
DRAWBACKS:
  • A bit heavyweight if you use it for a long time.

Buyer’s Guide: How to Choose a String Trimmer for Commercial Use?

Here are the five steps to take to have your money well spent when shopping for the most powerful string trimmer:

Husqvarna 324L 4-Cycle 18 Cutting Path Gas String Trimmer

Step 1: Determine which power source it should use.

String trimmers can run on gas, battery, or a traditional power cord connected to the mains. The latter type is the cheapest, but it is distance-wise limited. Battery-driven units are quiet and ecological, while gas-powered models work the longest.

Step 2: Choose the right type of engine power.

If you want a gas-powered trimmer, you will have to choose between a 2-stroke engine unit and a 4-stroke model. 4-strokers are more fuel-efficient, have lower emissions, and produce less smell, but they are also more expensive.

Step 3: Do not go overboard with the cutting width.

The larger the cutting width, the faster you get the job done. However, while giving you a more generous swath, models of 14’’ and more are also harder-to-manage.

Step 4: Test various brands for durability.

The durability of a model depends on its build quality. The best-known manufacturers with excellent products are Honda, Echo, Husqvarna, Milwaukee, EGO, Makita, and DeWalt.

Step 5: Decide on the acceptable noise level.

Battery-operated trimmers are the quietest. Gas-powered models and corded electrical units compare to each other in the levels of noise they produce.

FAQ on Commercial String Trimmers

Here are some more things about top-rated commercial weed eater models worth mentioning:

Is a straight shaft string trimmer better for commercial use?

Curved shaft trimmers are suitable for shorter users who need a maneuverable tool to care for smaller areas. Straight shaft trimmers will be handy when completing longer or more extensive commercial trimming jobs.

Can I use battery-powered units?

You can use trimmers powered by lithium-ion batteries since they are powerful, quiet, eco-friendly, and durable.

What are the safety precautions for string trimmer?

One should always opt for long pants, closed footwear, safety goggles, and gloves when using a string trimmer.

Summing Up: Choose Wisely

If you cannot decide which string trimmer to go for, I recommend sticking with Honda 647620. This functional, reliable, and reasonably priced unit deserves every bit of praise it is getting from the users.

What grass trimmer do you choose? Are you satisfied with its features and overall performance? I would love to get your feedback, so feel free to share your thoughts in the comments!

Last update on 2021-10-21. The post includes Affiliate links. Images from Amazon Product Advertising API

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