Best Brush Cutting Blades for Weed Eater Trimmers
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A brush cutting blade for weed eater is a metal saw or serrated disc that replaces the string head on a trimmer so the machine can cut through woody stems, thick weeds and small brush. The blade has to match your trimmer in two ways: the center hole or arbor must fit the drive shaft, and the blade diameter and mounting kit must suit the machine. The seven blades in this roundup are the brush-cutting blades in the group whose listings name a diameter, a tooth count or a mounting arbor. Each section below sticks to what the listing states, so check those numbers against your own trimmer before you order.
Quick answer
- For brush and woody stems, a carbide-tipped 36-tooth blade in 9 inches is the type several listings describe for dense brush.
- For a 3-tooth steel blade in a larger 10 or 12 inch size, the ATIE and Pool Supply Town listings describe brushwood and thick grass work.
- Most listings here fit a 1-inch (25.4mm) arbor or a 20mm arbor. Confirm the bore on your machine before you buy.
- The DSHPZK and LONCHZN blades are listed for named brush cutter models. Buy them only if your machine is on the list.
What a brush cutting blade does
A string head cuts grass and soft weeds by letting a flexible line slap against the stems. A brush cutting blade works differently. It is a rigid disc with teeth, and it cuts by striking and slicing through stems that a string would only bend. That is why the listings spend so much time on tooth count and tip material. Fewer, deeper teeth grab more material on each pass, while a higher count gives a finer cut. The ATIE listing says its 9-inch 36-tooth blade is for brush and brambles, and that fewer teeth create wider cavities that grab more material per spin. The 3-tooth blades in this roundup follow the same logic in a larger diameter.
Blade type matters as much as tooth count. Some listings describe carbide-tipped teeth, which are brazed onto a steel body. Others describe plain steel or carbon steel blades. A carbide tip is listed for woody stems, while a plain steel blade is listed for grass and light weeds. Use the material the listing gives, not the look of the blade, when you decide what a blade can handle.
Fit, arbor and diameter
Three numbers decide whether a brush cutting blade will fit your weed eater. First is the arbor, which is the center hole that sits on the drive shaft. The ATIE, Pool Supply Town and 9-inch carbide listings all say they fit either a 1-inch (25.4 mm) arbor or a 20 mm arbor, and that is the most common size on straight shaft trimmers. Second is the diameter. The ATIE 10-inch blade is listed at 255 mm, the Pool Supply Town 12-inch blade is listed at 300 mm, and the first kit in this roundup is 10 inches. Third is the mounting kit, which holds the blade on the shaft with a thrust washer, a collar nut and sometimes a rider plate.
A blade that is too large can strike the guard or the ground. A blade that is too small will not cut the brush you want it to cut. Check the manufacturer’s maximum blade size for your machine, and use the diameter the listing names as a starting point. Several listings say they are universal, which means the arbor fits, not that every machine is safe for every blade size.
Materials: steel, carbon steel and carbide
The listings name several metals. The DSHPZK and LONCHZN blades are described as thickened steel discs. The ATIE and Pool Supply Town blades are described as steel with a 3.0 mm thickness. The 2-pack kit says its steel heads use hardened manganese steel and that its saw blade is carbide-tipped, and the CGNRONEAU set is listed as manganese steel saw blades with a carbide-tipped note in one bullet. That bullet and the material line on the same listing conflict, so confirm the material on the product page before you buy if the tip matters to you.
Carbide-tipped teeth are the feature that the listings most often use to describe longer life. The ATIE listing says its carbide-tipped blade is estimated to last about 10 times longer than plain steel. That figure comes from the listing, and the roundup does not have a test source for it, so treat it as the seller’s claim.
The seven brush cutting blades
DSHPZK 6 Teeth Serrated Brush Cutter Blade for Milwaukee M18 (green)
This DSHPZK blade is listed for the Milwaukee M18 brush cutter from 2022 to 2026. It has six serrated teeth, and the listing says the serrated edge penetrates deep into plant roots while reducing grass clippings. The blade body is described as thickened steel with a balanced head for stable operation at higher speeds. The model is DSHPZK-16118845-05 and the part number is 119956_DSHPZK-16118845-05. The listing gives no diameter, arbor size or weight, so confirm those against your Milwaukee machine before ordering. Choose this color if it matches your existing kit, since the red version carries the same listing details under another model number.
LONCHZN 3-Tooth Brush Cutter Blade for DEWALT 60V MAX DCBC580
The LONCHZN blade is listed for the DEWALT 60V MAX brush cutter series, model DCBC580. It has three fixed cutting sections on a one-piece body, which the listing contrasts with heads that have separate swinging cutters. The center hole is 1.00 inch or 25.4 mm. The listing says it suits lawn edges, gardens, fields, pathways, fence lines, orchards and farms. It also asks buyers to compare the blade diameter and the equipment specifications before purchasing, because the listing does not state the diameter. The model number is LONCHZN-20096245-BB. Choose this blade if you run the named DEWALT machine and want a fixed three-section design.
2 Pack 6-Blade Steel Brush Cutter Head with 10-inch 80T carbide saw blade
This kit is not a single blade, but it is sold as a brush cutter set with a 10-inch 80-tooth carbide-tipped saw blade plus two 6-blade steel cutting heads. The listing says the carbide blade is for saplings and thick brush and is recommended for brush and weed cutting, not for trees or wood. The adapter kit covers 1-inch (25.4mm) and 20mm arbors and fits Stihl, Husqvarna, Echo, Shindaiwa, Redmax, Ryobi, Hitachi, Oregon and Homelite straight shaft trimmers according to the listing. The package measures 5 by 6 by 0.5 inches and weighs 3.16 pounds. The model number is Bcb-kit-2p9t80t. Choose it if you want the carbide saw blade and a steel head in one purchase.
ATIE 9 Inch 36 Teeth Carbide Tip Brush Cutter Blade
The ATIE 9-inch blade has 36 carbide-tipped teeth brazed onto a steel body. The listing says it fits either a 1-inch or a 20 mm arbor and describes the teeth as welded on. It calls the blade a brush and bramble blade, and it says that fewer teeth create deeper, wider tooth cavities that grab and cut more brush material with each spin. The listing also says the blade is estimated to last about 10 times longer than plain steel. The model is AT3601-1 and the part number is 3601. The listing gives no weight. Choose this blade for thick brush at a 9-inch diameter, and check that your trimmer can take that size before you install it.
ATIE 10 Inch 3-Teeth Steel Brush Cutter Trimmer Weed Eater Blade
This ATIE blade is a 10-inch, three-tooth steel blade listed at 255 mm in diameter and 3.0 mm thick. The listing says it fits either a 1-inch or a 20 mm arbor and is great for cutting brushwood, bushes and dense grass. It says the blade helps cut through tough weeds and brushwood. The model is AT0706-1 and the part number is TRTA04829. Compared with the 36-tooth carbide blade above, this steel blade has fewer teeth and no carbide tip, so the listing positions it for brushwood and dense grass rather than woody stems. Choose it when you want a larger diameter with a simpler steel body.
Pool Supply Town 12 Inch 3-Teeth Heavy Duty Steel Brush Cutter Blade
This Pool Supply Town blade is the largest diameter in the roundup. The listing gives 300 mm, or 12 inches, and a thickness of 3.0 mm. It has three teeth, is made of steel, and fits either a 1-inch or a 20 mm arbor. The listing describes it as great for cutting brushwood, bushes and dense grass, and as a way to cut through tough weeds and brushwood. The model is AT0708-1 and the part number is also AT0708-1. The brand on the listing is Pool Supply Town. A larger diameter covers more ground per pass, but it also puts more load on the trimmer, so check the maximum blade size for your machine before you install it.
CGNRONEAU 7-Piece Round Weed Wacker Saw Blade Attachment Set
This set includes seven pieces: two circular saw blades, one lawn mower wrench, two nuts and two shims. The listing gives each blade a 6-inch diameter, a 5 mm saw blade aperture and a thickness of 1.1 mm. It describes the blades as manganese steel circular saw blades for thicker shrubs, branches and small limbs, and it also says the blades are carbide tipped. The listing gives the model as 1 and the part number as 1, so rely on the dimensions and the included parts rather than the model code. It carries safety instructions: keep the power off when changing blades, do not replace a blade with power on, and do not remove the weed eater guard. Choose this set if you want a small saw blade with spare nuts and shims in one package.
How to choose among these blades
Start with the job. Dense brush and woody stems point you to the 9-inch carbide-tipped ATIE blade, which the listing describes for brush and brambles. Brushwood and thick grass point to the steel 10-inch and 12-inch ATIE and Pool Supply Town blades, both listed as 3-tooth steel. A small saw blade for limbs and shrubs points to the CGNRONEAU set, which includes spare parts. A named machine points to the DSHPZK or LONCHZN blade, but only if your machine is on the model list.
Then check the mount. The four steel and carbide blades that list a 1-inch or 20 mm arbor give you the widest machine choice. Confirm the bore, the thrust washer and the collar nut before you install, and use the washers that came in the kit. If your machine uses a different spline or nut size, the blade will not seat safely.
Safety and use
Blades are sharp and spin fast, so the listings give sensible rules. The CGNRONEAU listing says to keep the power off when changing blades, never swap a blade with power on, and never remove the weed eater guard to run a blade. It also says to wear gloves when you change a blade. The 6-blade kit listing says the carbide blade is for brush and weeds, not for trees or wood. Ask a qualified tradesperson if you are unsure how to fit a blade or guard, and read your trimmer manual before the first cut.
Keep the blade away from rocks and hard ground. The 6-blade kit listing describes its carbide blade as suited to brush and weeds, and the ATIE listing does not say it is rated for hard objects. Clear the area before you cut, and stop if the blade begins to wobble or the machine starts to vibrate.
Where a brush cutting blade fits in your yard
A brush cutting blade is a supplement, not a replacement for a trimmer head. If your yard has grass edges and light weeds, a string or steel head may be enough. If your yard has woody brush, saplings or thick bramble along fences, a brush cutting blade does the work the string cannot. For a broader look at battery models, see our guide to top battery powered weed eaters. For gas models with more power for thick brush, see best gas weed eaters compared.
Think about the work you do most. Brush work and grass work call for different blades. Keep at least one steel grass head and one brush blade on hand, and label them so you do not mix them up at the start of a job.
FAQ
What is a brush cutting blade for a weed eater?
It is a rigid metal blade with teeth that mounts on the drive shaft of a trimmer in place of the string head. It cuts woody stems, thick weeds and brush that a string head would bend around. The blades here are sold with arbor and mounting parts for straight shaft machines.
How many teeth should a brush cutting blade have?
The listings show a range. The ATIE 9-inch blade has 36 carbide-tipped teeth and is described for brush and brambles. The 10-inch and 12-inch ATIE and Pool Supply Town blades have three teeth. The listing says fewer teeth give deeper cavities that grab more material per spin, so the tooth count depends on the material you cut.
Do these blades fit both 1-inch and 20mm arbors?
Several listings say they fit either a 1-inch (25.4 mm) or a 20 mm arbor, including the ATIE blades, the Pool Supply Town blade and the 9-inch carbide blade. The DSHPZK and LONCHZN listings name a specific machine and a 25.4 mm center hole, so check their listings before buying.
Can I use a brush blade on a battery trimmer?
Some listings name specific battery machines, such as the DSHPZK blade for the Milwaukee M18 brush cutter and the LONCHZN blade for the DEWALT 60V MAX brush cutter series. Check the compatibility line on the listing you pick. For a general straight shaft trimmer, confirm the arbor and the maximum blade size your machine allows.
Is a carbide-tipped blade better than steel?
The listings describe carbide tips as better for woody brush. The ATIE listing says the blade is estimated to last about 10 times longer than plain steel, which is the seller’s claim. For grass and light brushwood, the steel 3-tooth blades in the roundup are described for that work.
Should I use a brush blade near trees or large branches?
The 6-blade kit listing says its carbide blade is for brush and weeds and not for cutting trees or wood. Follow that limit. For larger limbs or work near power lines, ask a qualified arborist or electrician.
Bottom line
Choose a brush cutting blade by the job first, then by the mount. Carbide-tipped 9-inch blades suit dense brush, the 10-inch and 12-inch steel blades suit brushwood and thick grass, and the DSHPZK and LONCHZN blades suit the named brush cutter machines. Confirm the arbor, the diameter and the machine on the listing before you order, because those three numbers decide whether the blade installs and cuts safely.
Sources
Product facts come from the product listings in the pack only.
