Brush Knife

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Product Description

This tri-bladed steel brush cutting attachment is designed for brushcutters to cut through heavy grass, reeds and light scrub. 

A variety of cutting heads and blades are available. See Dealer for details.

Watch how-to videos for brushcutters
Find more trimmer head instructions

Reviews

Brush Knife is rated 4.7 out of 5 by 25.
Rated 2 out of 5 by from Needed part not available I bought a FS-KM brush trimmer to go with my new KM 131R, and later a Brush Knife blade. when I tried to fit the Brush Knife to the brush trimmer I found the diameter of the hole for the drive shaft didn't match. The thrust plate on the FS-KM is 25mm and the blade requires 20mm. I tried to buy a thrust plate that fit but one salesman had no idea of what I was talking about and the guy in the shop said they had been out of stock for weeks and had no idea when they would be coming in. I will try to buy an after market thrust plate, but if I can't find one that works I will probably just return it all. After all that I spent on that machine I had hopes I could just take it home and use it. I was quite disappointed. I bought the machine from Coastal Farm and Supply in Albany Oregon. FYI
Date published: 2019-09-16
Rated 5 out of 5 by from Must have for land owners. Works great on vines and briars were line is no longer acceptable. This is also a must have for cutting small brush, just be aware not to hit any structures or the ground with this knife. After using I have noticed it keeps its sharpness for quite a while.
Date published: 2019-05-23
Rated 5 out of 5 by from agian the beast love it outstanding makes cutting thick and heavy brush a breeze . my FS91 R can handle it , but moving up too the FS 240 in some areas I work my 91 gets a little weak do too the thickness of bush with small saplings mixed in
Date published: 2018-12-13
Rated 5 out of 5 by from Easy work of weeds and brush. I have this on a 131, it will chew up brush up to 2”, does great on all weeds and grass. If I’m knocking down lots of saplings I’ll use my carbide blade as this gets rough and throws chunks at you that the carbide blade turns to sawdust. This blade does very good on tough vines, briars and limbs good for maintaining trails, fencelines and roadways in the woods. In weeds start at the top and set it down on the brush or weedsand it does about the same as a string head (total obliteration).
Date published: 2018-12-04
Rated 5 out of 5 by from Works Great! I'm currently clearing out by backyard which has a ton of saplings and random brush that needed to be copped down. It works perfectly for this. FYI it does throw things around and protective gear needs to be worn.
Date published: 2018-04-25
Rated 5 out of 5 by from The BEST overall cutting attachment for Brushcutters/Clearing Saws! I have logged over 4,000 hours of cutting with the 350mm X 3-tooth Brush Knife. I've whacked green wood upwards of 3" in diameter. The blade clears itself well from tangling of wire-like weeds. It is easy to sharpen by hand or grinder. Make sure you keep it balanced. The two-sided feature means you can flip it over in the field & keep on cutting.This blade is not on the recommended list for the FS 460 series Clearing Saw, but I can tell you that it works just fine on that unit which has adequate power to swing it.This blade will clear all kinds of grasses, weeds, brush, and sapling trees.
Date published: 2018-03-01
Rated 5 out of 5 by from This blade loves to cut! I bought one of these to use for some cleanup around the farm. Some of the areas I was cutting had not been cut in many years. This tore through the grass, weeds, and brush.This blade is definitely worth the money.
Date published: 2017-11-27
Rated 5 out of 5 by from Indispensable I have worn out several of these blades clearing fence rows and brush on our farm. I built almost 4 miles of fence and my FS-85 trimmer with brush blade accompanied me the entire way.
Date published: 2017-06-09
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Instruction Manual - Brush Knife (PDF)
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Cutting Heads & Blades Selection Chart (PDF)
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