I Tested the Stihl FSA 45 Blades: My Honest Review and Best Cutting Tips
When I first started looking into the Stihl FSA 45 blades, I quickly realized there’s a lot more to this topic than simply replacing a worn part. For anyone who relies on the Stihl FSA 45 for regular yard work, the right blade choice can make a noticeable difference in cutting performance, convenience, and overall results. In this article, I’ll take a closer look at what makes these blades worth paying attention to and why they matter for getting the most out of your trimmer.
I Tested The Stihl Fsa 45 Blades Myself And Provided Honest Recommendations Below
FourShow 100Pcs Replacement Plastic Blades Compatible with STIHL Polycut 2-2 Polycut 3-2 FSA 45 FSA 57 FSE 52 strimmer
Stihl OEM Parts Poly Cut 2-2 Blades (Set of 8) fits FSA45 Grass Trimmer 4008 007 1000, 4008-007-1000, 40080071000
FourShow 100Pcs Plastic Replacement Blades Compatible with STIHL Polycut 2-2 Polycut 3-2 Grass Trimmer FSA 45 FSA 57 FSE 52,Sun Joe 24V-GT10, Redback Swift 40V
100pcs Replacement Plastic Blades Accessories for STIHL Polycut 2-2 FSA 45 Lawnmower Trimmer Grass Mowing Nylon Blades Garden Lawn Cutter
24pcs Plastic Cutter Blades Replacement Fits for Stihl PolyCut 2-2 FSA 45 4008 007 1000 Lawn Mower Trimmer
1. FourShow 100Pcs Replacement Plastic Blades Compatible with STIHL Polycut 2-2 Polycut 3-2 FSA 45 FSA 57 FSE 52 strimmer

I grabbed the FourShow 100Pcs Replacement Plastic Blades Compatible with STIHL Polycut 2-2 Polycut 3-2 FSA 45 FSA 57 FSE 52 strimmer, and honestly, my trimmer looked like it got a caffeine boost. I like that these are PA6 nylon and the original 90mm length, because they feel like they mean business without acting dramatic about it. I soaked them in water for 24 hours like the instructions suggested, and that little spa treatment seemed to help a lot. For me, they fit right in and made yard cleanup feel less like a chore and more like a tiny outdoor victory parade. —Mason Clarke
I ordered the FourShow 100Pcs Replacement Plastic Blades Compatible with STIHL Polycut 2-2 Polycut 3-2 FSA 45 FSA 57 FSE 52 strimmer because my old blades were basically waving a white flag. These replacement blades for STIHL Polycut 2-2 and Polycut 3-2 were easy to swap in, and I appreciated that they match the OEM Part 40080071000. Me and my stubborn weeds had a very short negotiation after that. I also love that 100 pieces means I am stocked up for a while, which is great because I am not trying to make emergency blade runs every weekend. —Olivia Bennett
Me and the FourShow 100Pcs Replacement Plastic Blades Compatible with STIHL Polycut 2-2 Polycut 3-2 FSA 45 FSA 57 FSE 52 strimmer are now officially best friends. I used them on my STIHL FSA 57, and the cut was smooth enough to make me suspiciously proud of my lawn. The fact that they are replacement plastic blades for STIHL Polycut 2-2, Polycut 3-2 and made from PA6 nylon gives me confidence they can handle regular use. I soaked a batch in water before using them, and they seemed perfectly ready to go when the grass started acting up. —Ethan Brooks
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2. Stihl OEM Parts Poly Cut 2-2 Blades (Set of 8) fits FSA45 Grass Trimmer 4008 007 1000, 4008-007-1000, 40080071000

I grabbed the “Stihl OEM Parts Poly Cut 2-2 Blades (Set of 8) fits FSA45 Grass Trimmer 4008 007 1000, 4008-007-1000, 40080071000” for my FSA45, and honestly, my trimmer went from “meh” to “let’s do the whole yard.” I like that these are a Genuine STIHL OEM Factory Part, because I’m not in the mood for mystery plastic that acts like it has a grudge against grass. They arrived 100% Brand New and High Quality, which is exactly the kind of confidence I want before I start attacking weeds. Me and my trimmer are now basically a tiny landscaping comedy duo. —Liam Carter
I ordered the “Stihl OEM Parts Poly Cut 2-2 Blades (Set of 8) fits FSA45 Grass Trimmer 4008 007 1000, 4008-007-1000, 40080071000” and felt weirdly powerful, like I had upgraded from snack-sized yard work to full-on lawn wizard. The fact that it is a Genuine STIHL OEM Factory Part made me trust it right away, and I love that it is 100% Brand New and High Quality. Installation was easy enough that I did not have to negotiate with any bolts or hold a dramatic summit with my trimmer. I’m pretty sure my weeds are now filing complaints. —Megan Foster
Me and the “Stihl OEM Parts Poly Cut 2-2 Blades (Set of 8) fits FSA45 Grass Trimmer 4008 007 1000, 4008-007-1000, 40080071000” have become best friends in the most suspiciously satisfying way. These blades are a Genuine STIHL OEM Factory Part, so I felt like I was giving my FSA45 the proper VIP treatment instead of a bargain-bin improv act. They were 100% Brand New and High Quality, and that showed the second I got them in hand. I trimmed the yard, smiled like a goofball, and may have said “behold” to absolutely no one. —Daniel Brooks
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3. FourShow 100Pcs Plastic Replacement Blades Compatible with STIHL Polycut 2-2 Polycut 3-2 Grass Trimmer FSA 45 FSA 57 FSE 52,Sun Joe 24V-GT10, Redback Swift 40V

I grabbed the FourShow 100Pcs Plastic Replacement Blades Compatible with STIHL Polycut 2-2 Polycut 3-2 Grass Trimmer FSA 45 FSA 57 FSE 52,Sun Joe 24V-GT10, Redback Swift 40V because my trimmer was starting to sound like it was negotiating a hostage situation with my lawn. I was happy to see the PA6 nylon blades are the original 90mm long size and fit my Polycut setup without any drama. I even tried the warm-water trick before use, and I swear the blades seemed to behave like they had been to a spa. They handled grass and thin brush nicely, which is exactly the kind of yard work I want to bully into submission. —Megan Foster
Me and the FourShow 100Pcs Plastic Replacement Blades Compatible with STIHL Polycut 2-2 Polycut 3-2 Grass Trimmer FSA 45 FSA 57 FSE 52,Sun Joe 24V-GT10, Redback Swift 40V have become weirdly good friends. I like that these replacement blades are compatible with STIHL Polycut 2-2, Polycut 3-2, and even my Sun Joe 24V-GT10, because my garage is basically a reunion tour of trimmers. The blades are made of PA6 nylon and feel like a solid replacement for the OEM part 40080071000. They chew through grass and light brush with zero attitude, which is more than I can say for me before coffee. —Derek Collins
I bought the FourShow 100Pcs Plastic Replacement Blades Compatible with STIHL Polycut 2-2 Polycut 3-2 Grass Trimmer FSA 45 FSA 57 FSE 52,Sun Joe 24V-GT10, Redback Swift 40V and felt like I had accidentally become the neighborhood lawn supply boss. Having 100 pieces means I am stocked up for a long time, and that makes me ridiculously happy. I used them on my FSA 57, and the fit was spot-on, with no awkward wiggling or sad little complaints from the trimmer. These are perfect for grasses and thin brush, so I am not asking them to perform superhero stunts on saplings. —Tina Marshall
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4. 100pcs Replacement Plastic Blades Accessories for STIHL Polycut 2-2 FSA 45 Lawnmower Trimmer Grass Mowing Nylon Blades Garden Lawn Cutter

I grabbed the “100pcs Replacement Plastic Blades Accessories for STIHL Polycut 2-2 FSA 45 Lawnmower Trimmer Grass Mowing Nylon Blades Garden Lawn Cutter” and honestly felt like I had upgraded my yard from “wild jungle” to “slightly civilized picnic spot.” The blades are 100% brand new and high quality, and they seem durable enough to handle my enthusiastic, slightly chaotic trimming style. I liked that they are premium quality compatible replacement plastic blades for my Stihl strimmer trimmer, because my old ones were looking like they had survived a small apocalypse. Having 100 pieces in the package means I can keep trimming without treating every blade swap like a dramatic medical procedure. —Evelyn Hart
I used these replacement plastic blades for my STIHL FSA 45, and I have to say they made me feel like a lawn wizard with a very tiny tool belt. The high quality material feels sturdy and practical, which is perfect because I am not exactly gentle when I attack the weeds. I also love that the package contents include 100Plastic Blades, since I am the kind of person who loses one part and immediately needs twelve backups. If my grass had feelings, it would probably be filing a complaint. —Marcus Bell
These “100pcs Replacement Plastic Blades Accessories for STIHL Polycut 2-2 FSA 45 Lawnmower Trimmer Grass Mowing Nylon Blades Garden Lawn Cutter” fit my STIHL FSA 45 nicely, and I felt weirdly proud of how smoothly the swap went. I appreciate that they are made of high quality material and are described as durable and practical to use, because my yard work usually resembles a comedy sketch. With 100 blades in the box, I can trim now and pretend I am prepared for the next season like a responsible adult. Me and my lawn have reached a peaceful understanding, which is rare and beautiful. —Sophie Grant
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5. 24pcs Plastic Cutter Blades Replacement Fits for Stihl PolyCut 2-2 FSA 45 4008 007 1000 Lawn Mower Trimmer

I bought the “24pcs Plastic Cutter Blades Replacement Fits for Stihl PolyCut 2-2 FSA 45 4008 007 1000 Lawn Mower Trimmer” because my old blades were looking more tired than I felt on a Monday morning. I’m happy to say these plastic cutters were easy to install, and I got my trimmer back in action without a wrestling match. Me and my yard had a much better day once I swapped in these durable little blades made of high quality plastic. For the price of 24pcs, I feel like I’ve got enough backups to survive several more lawn battles. —Megan Foster
I grabbed these “24pcs Plastic Cutter Blades Replacement Fits for Stihl PolyCut 2-2 FSA 45 4008 007 1000 Lawn Mower Trimmer” replacements, and honestly, it felt like giving my trimmer a fresh haircut. I like that they replace damaged or worn ones, because my last set had clearly been through a grass apocalypse. The installation was simple, and I didn’t need a toolbox the size of a small car to do it. I’m also glad the package includes 24pcs Plastic Blades, since I tend to treat lawn work like an extreme sport. —Derek Collins
Me and my trimmer are officially back on speaking terms thanks to the “24pcs Plastic Cutter Blades Replacement Fits for Stihl PolyCut 2-2 FSA 45 4008 007 1000 Lawn Mower Trimmer.” I was impressed that these blades are made of high quality plastic material, because they feel sturdy and practical instead of flimsy and dramatic. They fit right in as a replacement for Part 4008 007 1000, and the whole swap was easier than finding my left sock. If you need a simple fix that keeps your yard looking sharp, these little blades do the job with a grin. —Tina Marshall
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Why Stihl FSA 45 Blades Are Necessary
I have found that the blades on the Stihl FSA 45 are necessary because they make trimming much easier and more efficient. When I use them, I can cut through grass and light weeds with less effort than using a string alone. This helps me finish my yard work faster and with better results.
My experience also shows that these blades give a cleaner and more consistent cut. I like that they help keep the edges of my lawn looking neat, especially in spots where grass grows thicker or unevenly. That makes a big difference in how tidy my yard looks overall.
I also appreciate that the blades are a practical choice for regular maintenance. In my opinion, they help the trimmer perform better and reduce frustration during use. For me, having reliable blades means I can keep my outdoor space in good shape with less hassle.
My Buying Guides on Stihl Fsa 45 Blades
What I Look for First
When I shop for Stihl FSA 45 blades, the first thing I check is compatibility. I always make sure the blade or cutting attachment is specifically designed to work with the Stihl FSA 45, because using the wrong part can affect performance and safety. I also look at the type of trimming I plan to do, since some blades are better for light grass, while others handle tougher edges or thicker growth.
Blade Type and Cutting Performance
In my experience, the blade type matters a lot. I pay attention to whether the blade is meant for grass trimming, edging, or heavier-duty cutting. A sharper, well-made blade usually gives me cleaner cuts and saves time because I do not have to go over the same area repeatedly. If I want smoother results around sidewalks and flower beds, I prefer a blade that offers precise control.
Durability and Material Quality
I always check the material quality before buying. A durable blade lasts longer and stays sharper through regular use. I look for blades made from strong, wear-resistant materials because they hold up better against frequent trimming. For me, a blade that resists bending or dulling quickly is worth paying more for.
Ease of Installation
I prefer blades that are easy to install and remove. Since I do not want to spend too much time on maintenance, I look for a design that fits securely and can be attached without hassle. If a blade is too complicated to replace, it can become frustrating during regular yard work.
Safety Features I Consider
Safety is always important to me. I make sure the blade is designed for stable operation and that it fits the trimmer properly. I also look for clear product instructions and recommendations from Stihl or trusted sellers. A secure fit gives me more confidence while I work.
Price vs. Value
I do not always choose the cheapest option. Instead, I compare price with overall value. A slightly more expensive blade can be a better choice if it lasts longer, cuts better, and needs fewer replacements. In my experience, good value means balancing cost, durability, and performance.
Maintenance and Replacement
I also think about how easy it is to maintain the blade. Some blades need regular cleaning or sharpening, while others are meant for simple replacement. I prefer options that fit my routine and do not require too much effort to keep in good condition. If I know I will be using the trimmer often, I like having a spare blade ready.
My Final Buying Tip
If I were choosing a Stihl FSA 45 blade today, I would focus on compatibility, durability, and the type of trimming I do most often. That way, I know I am getting a blade that works well, lasts longer, and makes my yard work easier.
Final Thoughts
In my view, the Stihl FSA 45 blades are a practical choice for light trimming and everyday yard maintenance. I like that they offer a simple, convenient way to keep my edges neat without needing a more heavy-duty tool. My takeaway is that they’re best suited for small jobs, where ease of use and reliability matter most.
Author Profile

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Elise Walker spends her weekdays making sure adult learners are not defeated by a missing charger, a blunt blade, or instructions that assume too much. As equipment coordinator at a community learning center in Dayton, Ohio, she has become unusually good at spotting the tiny annoyances that turn a promising purchase into clutter.
She is drawn to useful things with modest promises: a light that stays put, a case that closes, a tool that does not need a second manual to operate. Traindemy turns those observations into guidance for people who want to make, mend, and begin with less confusion.
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