STIHL Brush Cutting: Blades, Fits and the GTA 26
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A brush cutter is a heavy-duty string trimmer that swaps the nylon line for a metal blade, so it can chop through thick weeds, brambles and small saplings that would shred ordinary trimmer line. STIHL is one of the best-known names in outdoor power equipment, famous for its FS series of trimmers and brush cutters and its KM KombiSystem, where one power head takes different attachments. Many STIHL models are designed to accept metal blades, and the blade you choose makes a big difference to what you can cut and how safely.
Here is the honest picture: only two of the six products below are made by STIHL, the genuine 4112 713 4100 brush knife and the GTA 26 cordless wood cutter, while the other four are third-party blades from other makers that say they fit STIHL trimmers. This guide explains arbor size, tooth styles and safety in plain words, so first-time buyers and gift-givers understand exactly what they are getting.
STIHL Brush Cutter Blades and Tools Compared
| Model | Made by | Type | Size | Arbor or fit |
|---|---|---|---|---|
| Stihl 4112 713 4100 Brush Knife | STIHL (genuine) | Steel brush knife | Not listed | 25.4 mm (1 inch) |
| HK 2 Pack 9″ x36T Carbide | HK (third party) | 36-tooth carbide-tipped saw blade | 9 inch | 25.4 mm, 20 mm with washer |
| VIDICA 2 Pack Carbon Steel Brush | VIDICA (third party) | 3-tooth carbon steel blade | 10 inch (title); 5 inch (one feature line) | 25.4 mm or 20 mm |
| Stihl GTA 26 Wood Cutter | STIHL (genuine) | Cordless pruning saw | 3.9 in cutting width | Not applicable |
| Eapele Brush Cutter Blade | Eapele (third party) | Carbide knife blade | 10 inch | 25.4 mm or 20 mm |
| AR-PRO (2-Set) 10″ x 3 Teeth Carbon | AR-PRO / CalPalmy (third party) | 3-tooth carbon steel blade | 10 inch | 25.4 mm or 20 mm |
Stihl 4112 713 4100 25.4 mm Brush Knife for Genuine STIHL Fit
Stihl
Stihl 4112 713 4100 25.4 mm/ 1" Brush Knife Steel Blade
Price and specifications are read from the Amazon product page and can change.
Stihl 4112 713 4100 25.4 mm
Best for: STIHL FS and KM owners wanting genuine parts
Pros
- Genuine STIHL OEM part
- 4 mm mounting hole
- Long list of named compatible models
Cons
- Only for trimmers approved for metal blades
- Blade diameter not listed
The Stihl 4112 713 4100 25.4 mm brush knife is a genuine STIHL OEM factory part, meaning it is made by STIHL for its own machines. It is a steel knife blade with a 25.4 mm (1 inch) mounting hole. The mounting hole, often called the arbor, is the center hole the blade slides onto; it must match your trimmer’s shaft exactly.
The listing names a long list of compatible models, including the FS90, FS91, FS94, FS111, FS131, FS240, FS250, FS311, FS361, FS410, FS460, FS490, FS510, FS560, FSA135, FSA200, FSB-KM, KM56RC-E, KM91R, KM94R, KM111R and KM131, among others. STIHL also reminds you to confirm that your brush cutter supports metal blades before fitting it. The listing does not specify the blade diameter or tooth count, and the item weight of 1.6 ounces may reflect packaging data.
This is the safest choice for STIHL owners who want a factory part that matches their machine. If your model is not on the list, check with a STIHL dealer rather than guessing. Our STIHL brush saw blade guide covers more genuine options.
HK 2 Pack 9″ x36T Carbide Blades for Small Trees and Heavy Brush
HK
HK 2 Pack 9" x36T Carbide Tip Brush Cutter Blades Weed Eater Blades for Brush Cutter, Trimmer, Weed Eater, Compatible with Husqvarna, Stihl, Fsx, and More
Price and specifications are read from the Amazon product page and can change.
HK 2 Pack 9″ x36T Carbide
Best for: Clearing small trees and heavy brush
Pros
- Carbide-tipped 36-tooth blades
- Two blades plus adapter kit
- Fits 25.4 mm or 20 mm arbor
Cons
- Third-party, not made by STIHL
- Must confirm fit on your model
The HK 2 Pack 9″ x36T Carbide blades are made by HK, not STIHL. Each blade is 9 inches across with 36 carbide-tipped teeth, which makes it look like a small circular saw blade. Carbide is a very hard material, and the description estimates carbide tips last about 10 times longer than plain steel.
The arbor is 25.4 mm, and an attached washer adapts it to 20 mm. The kit includes two blades plus a mounting set with a thrust washer, rider plate, collar nut, screwdriver, trimmer head cover and fixed plates. The listing names several STIHL models it says it fits, such as the FS 55, FS 56, FS 70R, FS 85, FS 90, FS 110, FS 130R, FS 131 and FS 240. HK says to check your model before buying and to install the blade securely.
Toothed saw blades like this suit cutting small trees, woody brush and thick weeds. Choose it if your STIHL trimmer accepts metal blades and you need to clear saplings. For softer vegetation, a 3-tooth blade is simpler.
VIDICA 2 Pack Carbon Steel Brush Blades for Thick Weeds
Friendsofyourgarden
VIDICA 2 Pack Carbon Steel Brush Cutter Blades, 10" x 3 Teeth Weed Eater Blades for 20mm or 25.4mm Arbor, Compatible with Husqvarna, Stihl, Ego, Oregon, Hitachi, Makita Brush Cutter, Weed Wacker etc
Price and specifications are read from the Amazon product page and can change.
VIDICA 2 Pack Carbon Steel Brush
Best for: Budget spares for thick weeds
Pros
- Two 3-tooth carbon steel blades
- Adapter kit and washer included
Cons
- Third-party, not made by STIHL
- Listing mixes 10-inch and 5-inch sizes
The VIDICA 2 Pack Carbon Steel Brush Cutter Blades are made by VIDICA, a third-party brand. The title describes 10-inch, 3-tooth carbon steel blades that fit straight shaft trimmers with a 1-inch (25.4 mm) or 20 mm arbor, and a blade adapter kit and washer are included.
A 3-tooth blade has three large triangular cutting points. It is a classic style for chopping thick weeds, grass and light brush. The listing contradicts itself on size: one feature line lists a 5-inch size with an M10 x 1.25 thread and a 12,500 RPM maximum, while the title and dimensions say 10 inches with 3 mm thickness. Because of that, confirm the size with the seller before ordering.
This is a simple spare-blade pack for weeds and brush. For woodier growth, the carbide options are tougher.
Stihl GTA 26 Wood Cutter for Pruning Branches
Stihl
Stihl GTA 26 Wood Cutter with Battery and Charger, Battery Operated
Price and specifications are read from the Amazon product page and can change.
Stihl GTA 26 Wood Cutter
Best for: Homeowners pruning branches without a big saw
Pros
- Genuine STIHL, made in Germany
- Battery and charger included
- Light at 1.2 kg
Cons
- Not a brush cutter
- 9-inch cutting width
The Stihl GTA 26 Wood Cutter is genuine STIHL and made in Germany, but it is not a brush cutter. It is a small cordless pruning saw, sold as the GTA 26 SET with an AS 2 battery and AL 1 charger included.
It weighs 1.2 kg and has a 3.9-inch cutting width, and STIHL recommends it for cutting wood and tree branches. Think of it as a handheld tool for trimming limbs, cutting firewood kindling or tidying shrubs, rather than clearing a field.
This is a great gift for a homeowner with a garden who does not want to handle a full chainsaw. If you need to clear dense undergrowth, a trimmer with a blade is the right tool instead.
Eapele Brush Cutter Blade Weed Wacker for Mulching Undergrowth
Best for: Mulching brambles, vines and saplings
Pros
- Carbide knife blade
- Two sets of mounting parts
- Can be reground when dull
Cons
- Third-party, not made by STIHL
- Single blade
The Eapele Brush Cutter Blade Weed Wacker Replacement Blade is a third-party 10-inch carbide knife blade from Eapele. The listing says it cuts brushwood, bushes, dense grass, small saplings, briers and vines, and that its knife shape is good for mulching, meaning chopping plants into small pieces.
It fits straight shaft trimmers with a 1-inch (25.4 mm) or 20 mm arbor and comes with two sets of installation accessories. When it dulls, it can be reground to restore sharpness. The listing includes a clear warning to avoid stones and metal and to wear hearing protection, goggles and safety glasses.
Choose this for overgrown corners full of brambles. It is a single blade, so the two-pack options give you a spare.
(2-Set) 10″ x 3 Teeth Carbon Steel Blades for Field Clearing
Best for: Field clearing with a spare blade
Pros
- Two blades and two washers
- Heat and rust-resistant carbon steel
- Fits 25.4 mm or 20 mm arbor
Cons
- Third-party aftermarket kit
- Performance claims from in-house testing
The (2-Set) 10″ x 3 Teeth Carbon Steel Brush Cutter Blades are sold under AR-PRO and described as an aftermarket kit produced by CalPalmy, with no affiliation to STIHL. You get two 10-inch, 3-tooth blades and two washers for 1-inch (25.4 mm) or 20 mm arbors.
The blades are made of heat- and rust-resistant carbon steel and are aimed at brush, weeds, saplings and twigs for field clearing and landscaping. The maker says they meet or exceed OEM performance based on in-house testing. They weigh 1.2 pounds.
This suits property owners with rough fields who want a spare blade ready. If you want a guaranteed factory match, choose the genuine STIHL brush knife.
How to Choose the Right STIHL Brush Cutter Blade
Check that your machine takes metal blades. Not every trimmer is built for them. STIHL’s own listing tells you to confirm this first.
Match the arbor. Most blades here use 25.4 mm, with washers for 20 mm. The genuine STIHL knife is 25.4 mm only.
Pick the blade style. 3-tooth blades (VIDICA, AR-PRO) handle weeds and brush. Toothed carbide saw blades (HK) handle small trees. Knife blades (Eapele, STIHL 4112) chop and mulch undergrowth. If you only need grass trimming, our look at string trimmer attachments may suit you better.
Prioritize safety. Wear eye and hearing protection, avoid rocks and metal, and fit blades with the correct guard and hardware.
FAQ
Is the 4112 713 4100 a genuine STIHL blade?
Yes. Its listing says it is a genuine STIHL OEM factory part with a 25.4 mm mounting hole.
Are HK, VIDICA, Eapele and AR-PRO blades made by STIHL?
No. They are third-party blades whose listings say they fit certain STIHL trimmers.
Is the STIHL GTA 26 a brush cutter?
No. It is a cordless wood cutter for branches, sold with a battery and charger.
What arbor size do STIHL brush cutters use?
The genuine STIHL knife listed here uses 25.4 mm (1 inch). Always confirm with your manual.
Which blade is best for small trees?
A toothed carbide blade like the HK 36-tooth pack is designed for small trees and heavy brush.
