Best Stihl Brush Cutter Blades for Heavy Weeds
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A stihl brush cutter blade is a metal cutting blade that threads or clamps onto a straight shaft trimmer and turns it into a brush cutter for thick weeds, small saplings and woody stems. Most of the listings below say they fit Stihl trimmers, but they differ in blade diameter, tooth count, metal and the adapter hardware in the box. The short answer is to match the arbor size of your trimmer, then pick a blade whose tooth count suits the growth you cut. Seven listings from our pack are covered here, with the facts each listing states and nothing more.
Quick answer
- Check the arbor first. Most listings here give a 1-inch (25.4 mm) center hole, and some also include a 20 mm bushing or adapter.
- For dense brush and saplings, the listings point to a 9-inch 50-tooth carbide blade or a 10-inch 80-tooth carbide-tipped blade.
- For general weeds and grass, the listings describe 9-inch 36-tooth carbon steel discs, 3-tooth steel blades and 6-blade steel heads.
- Read the compatibility line. One listing, the FORESTER blade, does not name Stihl in its title or bullets; it describes a fit for straight shaft trimmers and says a conversion kit is sold separately.
How to choose a stihl brush cutter blade for your trimmer
Start with three numbers from the listing: the center bore or arbor size, the blade diameter and the tooth count. The arbor decides whether the blade mounts at all. Several listings in this group give a 1-inch (25.4 mm) bore, which is the common size for straight shaft trimmers. The vidica 2-pack adds a 20 mm arbor option and lists a thread of M10 x 1.25, and the 6-blade steel head listing says its adapter rings and washers cover both 1-inch and 20 mm arbors. If your trimmer uses a different bore, the adapter kit in the box is the first thing to check, not the blade.
Next, look at the diameter. The FORESTER listing gives a practical rule: smaller diameters pair with low to mid-range trimmers in the 25 to 30 cc range and compact guards, while larger blades suit higher-power trimmers in the 35 cc and up range with larger guards. The FORESTER product is a 9-inch blade, and its listing says 8-inch, 9-inch and 10-inch versions exist. The 10-inch blades in this pack, from the carbide-tipped kit and the vidica 2-pack, are the largest options listed.
Then compare the teeth. More teeth generally means a finer cut, while fewer, wider teeth bite into heavier material. The pack shows tooth counts of 3, 20, 36, 50 and 80. The 20-tooth chainsaw-style blade is described for soft wood, saplings and small branches. The 36-tooth carbide or carbon steel disc is described for general brush and weeds. The 50-tooth carbide blade is described for faster, smoother cutting in brush. The 80-tooth carbide-tipped blade is described for dense vegetation and saplings. A 3-tooth steel blade is described for woody stems and thick brush.
Materials and speed ratings
The metal decides how the blade handles rock, wire and repeated strikes. Several listings use carbon steel, which is the most common material in this group. One kit lists SK5 steel and describes it as higher in hardness than many standard products, but it gives no hardness number. Another listing uses high-hardness manganese steel for its steel heads and carbide tips for the cutting edge. The carbide-tipped options are described as holding an edge longer than carbon steel, but the listings do not give a measured life, so treat that as a claim from the seller rather than a fact.
Speed ratings are stated on only a few listings. The 20-tooth chainsaw-style blade in one kit is rated up to 10,000 RPM, the FORESTER carbide blade is described as spinning at up to 10,000 RPM, and the vidica 2-pack lists a maximum of 12,500 RPM. Check your trimmer manual for its maximum head speed before mounting any blade, because a blade rated lower than your engine can reach is a safety problem.
The seven stihl brush cutter blade listings
Gashwer dual blade kit with adapter set
This kit pairs a 9-inch 20-tooth carbon steel chainsaw tooth blade with a 9-inch 36-tooth carbide tipped blade. The listing says the 20-tooth blade suits soft wood, saplings and woody stems, and the 36-tooth carbide blade suits hard wood, dense brush and thick weeds. The center hole is 1 inch (25.4 mm), and the listing names Stihl, Husqvarna, Ego, Oregon and Hitachi as compatible. Two full sets of mounting hardware come in the box, with thrust washers, rider plates, collar nuts, a lock nut, wrenches and gloves. The listing gives a 1-year warranty. The specs list the blade weight at 1.46 kg and the material as carbide and carbon steel. This is the most complete kit in the group, which is why it is the review pick later in this guide. View on Amazon
AXQKFZ 3-piece blade kit
This set includes a 9-inch 36-tooth carbon steel disc, a 9-inch 20-tooth chainsaw tooth blade and a 6-blade razor head made from 65Mn steel. The listing says the set includes adapter hardware and gives a 1-inch center bore. The 20-tooth blade is rated for operation up to 10,000 RPM, according to the listing. The compatibility line names Stihl, Ego, Oregon and Hitachi. The listing describes the kit as suited to thick grass, weeds, brush and overgrowth. The set is useful if you want a disc for general cutting and a chainsaw-style blade for woody stems in one box. View on Amazon
AXQKFZ brush cutter blade kit with 80-tooth carbide tip
This kit has three blades: a 10-inch 80-tooth carbide-tipped blade, a 9-inch 36-tooth carbon steel blade and a 10-inch 3-tooth carbon steel blade. The listing says the 80-tooth blade handles dense vegetation, the 36-tooth blade handles general trimming and the 3-tooth blade cuts through thick brush and woody stems. Hardware for each blade is said to be included. The compatibility line names Stihl, Husqvarna, Ego, Oregon and Hitachi. The listing gives a product weight of 2.57 pounds. Its specs do not give an arbor size, so confirm the bore on your trimmer before buying, and confirm that the 80-tooth blade is the size you intend to run. View on Amazon
Two-pack 6-blade steel brush cutter head with 80-tooth carbide blade
This listing is a kit of three parts: two 6-blade steel cutting heads and one 10-inch 80-tooth carbide-tipped weed eater saw blade. The listing says a universal adapter kit covers both 1-inch and 20 mm arbor sizes. Stihl, Husqvarna, Echo, Shindaiwa, Redmax, Ryobi, Hitachi, Oregon and Homelite are named as compatible straight shaft brands, and the listing says to check your trimmer’s arbor size before ordering. The steel heads are described as hardened manganese steel. The listing also says the carbide-tipped blade is recommended for brush and weeds, not for cutting trees or wood. That limit matters: the listing itself puts the blade in the brush category and says to avoid trees. View on Amazon
Vidica 2-pack 10-inch 3-tooth carbon steel blades
This two-pack gives two 10-inch 3-tooth carbon steel blades. The listing gives an arbor thread of M10 x 1.25, a maximum RPM of 12,500 and a blade thickness of 3 millimeters. It says the blades fit a 1-inch (25.4 mm) or 20 mm arbor and include a blade adapter kit and washer. The compatibility line names Husqvarna, Stihl, Ego, Oregon, Hitachi and Makita. The bullets describe the blade as suited to weeds, brush and light woody material, but one bullet also gives a size of 5 inches. Confirm the diameter in the listing before you order, because the bullets do not agree on it. View on Amazon
FORESTER 9-inch 50-tooth carbide tip blade
This single blade has 50 carbide teeth on a 9-inch diameter, a 1-inch arbor hole and a 20 mm bushing. The listing says it fits most straight shaft trimmers and is not compatible with curved shaft or electric trimmers. It also says a conversion kit is needed for setups that run a trimmer head, and that no kit is needed if the trimmer is already set up as a brush cutter. The listing says the diameter choice runs from 8 inches to 10 inches. The specs list the blade as 0.56 kg and the style as compact. Stihl is not named in the bullets or specs, so the fit with your Stihl trimmer depends on its arbor and shaft type. View on Amazon
ChoirLingo SK5 steel brush cutter blades, two-pack
This set has two reversible alloy steel blades, each about 12 inches long and 3.5 inches wide in the product dimensions. The listing gives the metal as SK5 steel and says the blades are easy to resharpen. The item highlight line lists Husqvarna, Stihl, Oregon and Hitachi, and says the blades cut thick brush and small saplings. The bullets describe the blades for grass and weeds in farm and garden work. The listing does not state a tooth count, a diameter or an arbor size, so check those with the seller’s page before buying. View on Amazon
Review: the Gashwer dual blade kit
The Gashwer kit is the most complete listing in this group, so it is the one we describe in full. It is a two-blade set. The first blade is a 9-inch 20-tooth carbon steel chainsaw tooth blade. The listing says it is for soft wood, saplings, woody stems and small branches. The second blade is a 9-inch 36-tooth carbide tipped blade, which the listing describes for hard wood, dense brush, thick weeds and tough vegetation. Having both in one box means you can switch from light clearing to heavier work without a second purchase, though the listing does not say how many hours either blade lasts.
The arbor is 1 inch (25.4 mm), and the listing names Stihl, Husqvarna, Ego, Oregon and Hitachi as compatible. Its specs list the compatible devices in the same way. The listing says it is built around high-hardness manganese steel and reinforced carbide teeth, and it describes the blade as balanced to reduce vibration and wobble. Those are claims the listing makes; they are not measured results in this guide.
The hardware is the strongest selling point in the listing. It includes two full sets of mounting parts: thrust washers, rider plates, collar nuts, a lock nut, wrenches and gloves. The listing says no extra tools are needed, which matters if you change blades often. The listing also says it includes safety reminders and protective gear and gives a 1-year warranty. The specs list a product dimension of 9 by 9 inches, a color of black, 36 teeth and a unit count of 2.
Two close alternatives from the pack are worth comparing. The AXQKFZ 3-piece kit gives a 36-tooth carbon steel disc, a 20-tooth chainsaw blade and a 6-blade razor head, which makes it a better match if you want a razor head as well. The AXQKFZ 80-tooth kit adds a 10-inch carbide-tipped option, which suits denser growth, but its specs do not give an arbor size. Either alternative is worth a look if the Gashwer kit’s blade set does not match your work.
Install and safety
Blade work on a trimmer is a job to do with the engine off and the spark plug lead disconnected, following your trimmer manual. The listings give the arbor, the teeth and the adapter parts, but none of them replace the manual for your specific model. Several listings say to check the trimmer’s arbor size before ordering, and the vidica and Gashwer listings each include an adapter kit. Wear eye protection and gloves when you cut, and keep bystanders well back. The Gashwer listing includes gloves and says to use protective gear, which is a good reminder for every blade in this guide. Replace a blade that is cracked, bent or loose on its mount rather than running it.
FAQ
Do all of these blades fit a Stihl trimmer?
Not all of them are listed for Stihl. Five listings name Stihl in the title, bullets or specs. The FORESTER blade does not name Stihl; its listing describes a fit for most straight shaft trimmers. Confirm the arbor size and shaft type on your own trimmer before ordering, because a compatibility line is the seller’s statement and does not replace your manual.
What is the difference between a carbide blade and a carbon steel blade?
The listings describe the carbide tip as the cutting edge for tougher material, and carbon steel as the body or a general-purpose disc. Several carbide-tipped options in this group use carbide teeth with steel bodies. The listings give no measured hardness or wear figures, so treat the descriptions as the sellers’ claims. A carbide-tipped blade is listed for brush and weeds, and the Gashwer and FORESTER listings both mention carbide for denser growth.
Can I use a brush cutter blade to cut small trees?
The listings do not all say the same thing. One listing says its carbide-tipped blade is for brush and weeds and is not for cutting trees or wood. The 20-tooth chainsaw-style blade in the Gashwer kit is described for soft wood, saplings and small branches. Read the listing for each blade before using it on woody stems, and keep to the size range the listing gives.
What arbor size do I need?
Most listings in this group describe a 1-inch (25.4 mm) center hole. The vidica 2-pack and the 6-blade head kit also say they include a 20 mm adapter or bushing. Measure the shaft or check your trimmer manual, then match the bore on the blade, or use the adapter the listing includes. If the listing does not state the bore, ask the seller before buying.
Are these blades rated for a specific RPM?
Only a few listings give a speed rating. The 20-tooth chainsaw-style blade in one kit is rated for up to 10,000 RPM. The FORESTER carbide blade is described at up to 10,000 RPM. The vidica two-pack lists a maximum of 12,500 RPM. Check your trimmer’s maximum head speed in its manual, and do not run a blade rated below that speed.
Which blade should a beginner buy?
A beginner should start with a kit that includes both a general-purpose disc and a more aggressive tooth profile, and that comes with its own adapter hardware. The Gashwer dual blade kit fits that description on paper, because it includes both a 20-tooth chainsaw blade and a 36-tooth carbide blade, along with two sets of mounting parts and gloves. Confirm the arbor size first, then start with the blade the listing describes for the growth you cut most often.
Bottom line
Choose the stihl brush cutter blade that matches your trimmer’s arbor, then match the tooth count to the material you cut most. For general weeds, a 36-tooth carbide or carbon steel disc is the listings’ common choice. For dense brush and saplings, look at the 50-tooth or 80-tooth carbide options. If the listing does not state the arbor or the compatibility with your model, do not buy it until the seller confirms.
Related reading: Brush Cutter vs String Trimmer: Which Does What explains when a brush cutter head makes more sense than a trimmer line, and How to Replace an Electric Mower Blade Safely covers the same care habits for a different blade.
