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What is a Walk-behind String Trimmer?

If you’re not familiar, what exactly is a walk-behind string trimmer?

A walk-behind string trimmer is equipment designed to help you quickly and easily cut grass or brush. It is compact and highly maneuverable, with better surface coverage than a portable version.

By using one, you will mow your yard in the most similar way to using a lawn mower. However, they are much smaller in size and use reinforced nylon composite materials in the form of “strings” that rotate at high speeds to get the job done.

Their main advantage over a lawn mower is that they can get into tight spaces and get around obstacles with ease. Because they are lightweight and easy to operate, they are perfect for small gardens or spaces where a lawn mower would be too cumbersome to use.

Is it possible to put a blade on a manual string trimmer?

Now that you know a little more about what a string trimmer is, the next logical question to ask is: can it be equipped with a blade?

In short, the answer is yes. However, there are a few things you need to keep in mind before undertaking this project.

One of the main benefits of using a manual string trimmer is that nylon strings are much less likely to cause damage to surfaces compared to traditional blades. So, if you’re looking to primarily shred leaves or cut small branches, installing a blade on your string trimmer may not be the best option for you.

On the other hand, if you’re looking to cut taller grass or thicker weeds, attaching a blade to your trimmer can definitely give you the extra power and precision you need.

Just be sure to keep in mind 2 important details; one is, you should be sure to use the best walk behind string strimmer and second, on the width of the blade compared to the width of your string trimmer, you don’t want it to be too big or too small.

Why would you want to install a blade on a ride-on string trimmer?

There are a few reasons why you may want to install a blade on a ride-on string trimmer:

  • To be able to trim areas that are higher off the ground than is possible with the standard tool
  • To be able to cut thicker growth areas more easily
  • For a more finished look (similar to what you would get with a lawn mower)

How to Put a Blade on a Walk Behind String Trimmer

How can we make this happen? Follow the steps below.

To install a blade on a manual string trimmer:

  • Find your string trimmer. There are many different types of walk-behind trimmers, so be sure to check with your manufacturer to see what type of blade is compatible.
  • Buy a blade that fits inside your string trimmer.
  • Remove the walk-behind string trimmer head and remove the cover to expose the motor.
  • Locate the screws that hold the string trimmer’s nylon lines in place and remove them.
  • Attach the new blade with screws.
  • Reassemble your trimmer and test to make sure everything is working properly.

The new blade should fit snugly, and if it doesn’t, you can use a spacer.

What not to do when attaching a blade to a manual string trimmer

While doing this project, there are a few things to avoid.

  • Do not try to change the design of your manual string trimmer.
  • Do not change trimmer lines immediately after using the device. It must cool down first, or you risk burning yourself.
  • Avoid using a blade that is too wide for your manual string trimmer; this will only cause damage to both the unit and the blade.

Last but not least, don’t attempt this project if you don’t feel confident in your handyman or handyman skills.


Hello, I’m Rachel Collins. Until recently, I ran my own patchwork quilt business. Having retired from that I have turned my e-commerce site into this blog where I discuss business, home and garden and lifestyle topics for you to enjoy...

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