STIHL fs 250 hourly fuel consumption
STIHL chain saw fuel consumption
STIHL chainsaw MS-250 is a semi-professional portable chain saw designed for cutting down trees, fuel, cultural pruning, landscaping, use in the construction of wooden structures, sawing boards, etc. д. Chainsaw weight 4.6 kg.
STIHL Original STIHL single-cylinder two-stroke gasoline engine with an output of 3.1 liter. с. The machine is started by means of a manual starter. The starting system is facilitated by a decompression valve. Original diaphragm-type carburettor with an integrated compensator that prevents the RPM drop while working and improves combustion gas quality (combustible mixture burns to its maximum).
4-bolt side-mounted guide bar, easy access, protects the hands of the machine operator. Tire size. 35 cm. 1.3 mm thick Oilomatic chain. has a pitch of ⅜ inch. Automatic chain lubrication with point-to-point lubrication, saves up to 50% of lubricant. Automatic chain brake included. Handles with vibration protection.
STIHL chain saw MS-250 comes standard with a full set of features:
STIHL MS-250 chain saw features
STIHL MS-250 chainsaw technical specifications:
|Model||STIHL MS 250|
|Power, l.с. (kW)||3,1 (2,3)|
|Engine displacement cm3||45,4|
|Chain pitch, inch||3/8|
|Chain thickness, mm||1,3|
|Fuel tank capacity, l||0,47|
|Oil tank capacity, l||0,2|
|Tire length, cm (inches)||30-40 (12-16)|
|Noise level, dB(A)||101|
Features of the STIHL 250 and 250 C-BE
To improve STIHL 250 performance, designers have installed on a chainsaw several modern developments that best affect the comfort and quality of the chainsaw. The first thing we will talk about is the compensator.
A special device is installed in the carburetor cover and is connected to the air filter housing in a separate small channel. The essence of the compensator is that it allows air to flow into the carburetor in addition to the fuel filter. This is necessary at a time when the air filter is as dirty as it can get and does not produce the amount of air the engine needs.
On chainsaws that are not equipped with a compensator, a dirty fuel filter can lead to increased fuel consumption, excessive fuel mixture enrichment. It can end up with soot under the piston rings and slugs. Accordingly, the saw will require expensive repairs, and the compensator can be insured against all this.
This feature is most useful in the winter, as it prevents the carburetor from icing up. The operator turns the option on and off as needed. To change the mode, you must move the valve that redirects the flow of warm air to the carburetor or vice versa.
One of the chain saw’s safety mechanisms is the manual chain brake. If for any reason the chainsaw bar comes to an abrupt stop, the brake will engage and the chain will stop turning momentarily, reducing the risk of serious injury. For the chain brake to work properly, the operator must observe several conditions:
- Keep your hands in accordance with the instructions, t.Е. Left hand on front handle, right hand on rear handle.
- Clean the mechanism in time because it is in the side cover where a lot of sawdust gets in.
Vibration Reduction System
Chainsaw engine vibrates while cutting. Vibration can be uncomfortable and reduce the operator’s time due to fatigue. To solve this problem, German engineers equipped the STIHL 250 with an anti-vibration system of effective shock absorbers. The STIHL 250 is therefore suitable for use by those with chronic hand problems.
READ STIHL chain saw How to remove the cylinder
Another system which improves comfort and makes the STIHL 250 a bit easier to operate is the control lever. This allows the ignition to be switched on and off with the thumb of the left hand. This is also how it activates the intake mode. You will never need to look for the switch. it is always at hand, which is especially handy in an emergency situation.
This is an officially patented STIHL system designed to reduce friction and extend the life of the saw unit. The system includes not only the part installed on the chainsaw, it is the oil pump and transport lines, but also the bar and chain of the chainsaw.
This manipulation occurs with each piece of equipment from the latest purchase and is designed to lapping all the parts, both the electric motor and the saw headset. With environmental concerns in mind, the company continually improves processes to reduce emissions, so the Husqvarna 435 meets all European safety standards.
the machine has its own features, which distinguish it from the analogues made by the European and Asian competitors. Attention deserves such a characteristic, as the service life of the product. According to the experience of users, the chainsaw has been in use for 10 years or more.
- type. gasoline carburetor;
- Engine power. 3.1 liters. с. (2,3 kW);
- 45.5 cm³ combustion chamber volume;
- fuel tank capacity. 470 ml;
- oil tank capacity. 200 ml;
- bar length. 350 mm;
- The number of links in the chain is 55;
- groove width. 1.3 mm;
- dimensions. 255x440x275 mm;
- Noise level at maximum rpm: 110dB
- Weight of the machine with a full tank: 4.6 kg.
Spare spark plugs and saw chains are included with the chainsaw. For transportation it is advisable to have a heavy cloth case or a foam padded carrying case.
VIKING lawn mowers are in the languid class, because they are powered by a 2.2 litre internal combustion engine.с.
Designed for mowing grass on plots up to 50 acres.
trimmer for grass with ease copes with any kind of grass, thanks to the massive engine, which is the main advantage of all its technical features.
Even young bushes can be mowed with it.
READ How to Change Oil in a VIKING Lawnmower
Lawn mower comes with a blade guard to protect the cutting parts.
STIHL FS250 mower is a good solution for landscaping, because its small size allows the operator to maneuver between obstacles and simply bypass any obstacles.
weighs 6.3 kg., and the fuel tank can be filled with about 0.6 l.
STIHL FS250 lawnmower
The powerful STIHL FS 250 lawn mower is designed for professional use in agriculture and forestry. Grass trimmer engine capacity of 2.2 hp.с., The STIHL FS250 brushcutter is a high-performance tool that mows grass of varying degrees of firmness over large areas, cuts through brushwood and clears brushwood from young bushes and thin trees. Due to its high technical characteristics, the gasoline grass trimmer is widely used in municipal services, too.
STIHL FS250 lawn mower
STIHL FS 250 brushcutter in particular
To get the most out of the engine and the grass trimmer, it is important to use it responsibly:
- Use only quality branded oil and AI-92 gasoline for the fuel mixture;
- flush the air filter and clean the spark plug every 50 hours. If you use the lawnmower not more than 2-3 days a month, you can extend the cleaning interval to 100 hours;
- Flush the carburetor and muffler in good time. every 100 hours;
- When using a brushcutter with a cutting blade, do not allow the attachment to come into contact with stones and other hard objects. this can damage the tool’s gearbox.
The power unit of the STIHL FS 250 grass trimmer should be checked while in use. If the plastic housing gets very hot, you should let the engine cool down for about 10 minutes.
The STIHL brushcutter comes with
Ordering a STIHL FS 250 brushcutter gives you everything you need to start using your garden tool.
The grass trimmer’s basic package includes:
- assembly and maintenance equipment;
- plastic protective shroud;
- Dual shoulder strap;
- Plastic fuel tank;
- metal 2-blade cutting blade;
- Mowing head with 2.4 mm cutting line.
Optionally, the manufacturer can complete the mower with proprietary oil for 2-stroke engines, a protective cover, as well as cutting blades and discs.
The SuperCut 20-2 double cutterbar mowing head with nylon line mowing around obstacles and difficult-to-reach areas. High mowing speed and efficiency. Strings are adjusted automatically when in contact with the ground.
attention! Use of the mowing head is only possible with a protective shield!
Block: 4/4 | Characteristics: 367
Specifications STIHL FS 250
For exact specifications, please ask your dealer.
|blade speed||up to 9000 rpm./min|
|Fuel tank||at 0.64 л|
|Working volume||40 cube.See|
|Type of engine||petrol|
|The shape of the handle||T-shaped (bicycle)|
Check with your dealer for the exact specifications.
– 5. hidden data
|Pros:||Cuts everything! Efficient earning tool.Motor power.Has not been recommended by road builders and municipality workers. Handy handlebar adjustment system|
|Cons:||One carabiner eyelet on the braid.The length of the machine. Doesn’t fit in a small car. No fishing line attachment included.Only the knife.|
|Feedback:||This is my first gasoline grass trimmer. I bought it at the end of February for 15 450 (of course, there was nothing to cut then)) I took it to earn money and mow my land.First time I had it in the end of April, the blade was still from the store as a cutting attachment. Important tip for the beginner. EXAMINE THE AREA FOR HARD PROTRUDING OBJECTS. I did not, as a result, two or three times caught the knife protruding pipes and a couple of bricks. As a consequence, bent blade that I think to me to work is not good. The second time I worked with this blade, I noticed one fact. Low grass (20 cm).) Mowed poorly, the grass is like a lubricated and not completely cut. The case was on someone else’s property and the result was very important.So after mowing around a hundred yards, I changed the blade to a line for a trimmer. The result was a wild delight! First of all mowing went much faster, and secondly the grass began to cut almost to the root. In the end, I did six acres in a couple of hours, spending a full tank of gasoline.The third time I mowed quite high (about 70cm).) grass on an area of about 8 acres. There were both burdock and thin shrubs.It’s as easy to cut as a regular scythe. As I understood from the performance.It didn’t care what it cut! You have to be very careful when cutting near bushes and small trees.CHOPES EVERYTHING! down to 4cm. branches.I left the line for the trimmer as the main cutting tool. It is quieter to work with and much more efficient on almost any grass. In a word, it’s a grass mower.The thing! I do not know how they behave cheap trimmers for the grass, but of power tools made a choice in favor of Stihl.Before I worked with electric trimmers, I got tired of tangled cables and low output. I also have an ms180 chainsaw.paid for itself in a month of pruning work. Also a good machine. The verdict: for any site with any kind of vegetation do not hesitate. For a living. Can pay off for a large volume of work because of the considerable price.I turned a blind eye to the Chinese. European build costs other money.|
– 5. KOLYAKO VIKTOR
|Pros:||Advantages: 1) Power required for comfortable work; 2) Reliability in operation; 3) When using a primer and fuel compensator starts perfectly; 4) The presence of a twin shoulder strap; 5) The price of brushcutters.|
|Cons:||Disadvantages: 1) The increased consumption of fuel (in comparison with less powerful string trimmers) 07-08 liters per hour of petrol when cutting lawn grass ; 2) A little noisy (in comparison with less powerful string trimmers), Sound power level, with a plastic tool dB(A)2. 114, Sound pressure level with plastic tool dB(A) 2. 99; 3) A bit heavy 6,3 kg. (heavier on average by 800gr. I don’t use gasoline or mineral STIHL HP two-stroke engine oil (red, in 1:45 proportion) 4) complete set is not present: a) headphones; b) mowing head. 5) gas tank lid is not the same as in other trimmers, the German assembly (the cover is open without auxiliary tools. Very handy). Made in China.|
|Review:||All exact specifications, not only of this model, but also of other brushcutter models, are available on the official websites of sales companies and manufacturers as a comparison when you want to buy a brushcutter. What it feels like to use it is subjective. I’ve been using the STIHL FS 250 for about 40 acres of various types of grass for the past two years. In making gasoline mixture I use gasoline AI-95 and mineral oil for two-stroke engines STIHL HP (red) in the ratio 1:45. But for next season I plan to use HP Ultra(green) synthetic oil. Work sparingly not on “full throttle (the power of the engine allows)”, but only “1/3”, “1/2” for a short time on the “1” (full throttle). Since at full throttle in hot weather in prolonged use for 2-4 hours you can overheat the engine, as well as markedly increases fuel consumption and engine noise. No malfunctions or difficulties during owning and using the grass trimmer (2 years). Each season, when servicing grass mowers change air, fuel filter, spark plug, as well as add proprietary grease in the gearbox. Elementary cleaning, washing. I use FixCut. Before I worked with power trimmers, I got tired of cable entanglement and low productivity. Metal blades for STIHL trimmers 2Z 230 mm (2 blades) and STIHL 3Z 250 MM (3 blades) while not used, I manage with strings of square section of different diameters. Trimmers other brands I have not had, this is the first, compare with nothing, but for sure the well-known brands, except for the cheapest, will work about the same.|
– 5. Victor Rybakov
|Pros:||Good quality, easy to operate, powerful and robust, safety guard.|
|Cons:||I do not see any disadvantages.|
|Review:||I bought it to clean a heavily overgrown area that I inherited from a business. I decided to build a house on this plot, but first it had to be cleaned up. I used the STIHL FS 250 trimmer to clear 20 acres of grass in three days. Of course, I worked intermittently, although this lawnmower could work nonstop for hours, but I’m not a robot, I needed a break. lawnmower good quality, it is easy to operate, all the control buttons are gathered on one handle, dual shoulder strap makes it easy to work with the brushcutter, and a protective cover protects the operator during work from the mowed grass.|
STIHL FS 250 lawnmower
STIHL FS 250. Powerful professional grass trimmer for large amounts of work, 2.2L power.с., straight bar, weight 6.3 kg. Lawn mower with trimmer head, two-blade metal blade, two-shoulder strap, key, safety glasses, user manual
As an authorized dealer you get free service twice a year. Whatever the age of the machine! Click here for more information.
STIHL FS 250 lawnmower
Standard equipment of the STIHL FS 250 brushcutter
Excellent twin shoulder strap included as standard equipment. Soft pads make it easy to work, especially over long periods of time.
An anti-vibration system is built into the STIHL lawn care products. Rubber buffers reduce the transfer of harmful vibrations created by the engine and the rotating cutting tool. That’s why handles have an extremely low vibration level. This makes operation convenient and fatigue-free.
STIHL Compensator. Control unit at the carburetor. Prevents oversaturation of the mixture if the air filter gets dirty. That way, power output remains constant over long periods of time. Filter requires cleaning when 80% of its surface is clogged. It also enables long periods of uninterrupted work.
All the engine controls are integrated into one handle. Controls are easier and safer to operate.
Fully encapsulated electronic ignition system ensures reliable starting and smooth engine operation. High ignition voltage assures reliable spark formation and long ignition time. This improves fuel combustion and reduces harmful emissions.
Two-handed handle. Ergonomic handlebar for the grasshopper. It provides a natural grasshopper ride and is easily adjustable with a T-screw. For brushcutters and brushcutters the two-handled handle is indispensable for frequent mowing in large areas.
With the manual fuel pump you can manually pump fuel into the carburettor with the touch of a finger. This helps reduce starting jerks after long breaks in operation.
Safety goggles included as standard for your safety. They are well ventilated and have ample side protection.
Allows you to move freely with the bag hanging by your foot. Convenient for use in the woods with circular saw blades. Very lightweight. Can be supplemented with a tool pouch. With practical hook for quick attachment and removal of the tool.
Ergonomic, handy and lightweight. For less laborious grass mowing and shredding. Adjustable cinch and tool pouch. With convenient hook for quick tool attachment and removal.
Specifications STIHL FS 250 petrol grass trimmer
Complete information about the product, manufacturer, equipment, technical characteristics and functions can be found in the technical documentation.
Advantages. power, easy start, no vibration, easy and fast mowing.
CommentMowing three areas. Before the Stihl there was a Sparta25.He did five seasons of mowing with it.I’ve had it for 5 seasons and mowed with it. I’ve bought my FS 250 for almost a year and haven’t started it since, it was not a bad grass mower, it never broke down, but it mows three times faster and uses less fuel.I don’t want to wear the Stihl vest, but I have a Sparta shoulder strap.My neighbor’s fs 130 is also a good option.
CommentKosa is satisfied as a elephant. The three-beam blade can cut a tree line in the woods, let alone mow grass. No obstacle that can stop you with a mower in hand. If you put a saw blade, you can cut trees. The neighbor’s metal sheet fence tears like paper.There’s a discussion and video on the forum http://www.forumhouse.ru/threads/144944/page-4
DisadvantagesInexpensive, ergonomics suffers, vibration
CommentsHonestly. so-so. I had a Castor Power 36D before. it was a grass mower. Bought 10 years ago, no maintenance, put grease in gearbox once a year/2 years. Still runs like clockwork. Too bad they don’t sell it anymore, they took it away from me. Now for the 250 Stihl. It took me a long time to choose a scythe to replace the one. Figured it should be about 2 horses and a suspension vest. At first thought Husqvarna, read the reviews, came to the conclusion that they fall apart often. I had a look at STIHL, I think all the builders use Stihl chainsaws. Took the 250 instead of the 130, t.к. The price difference was only 1000 p. Pros. Starts up well, works well, mows well too, not a bad vest, cool glasses included))) Now the downside. 1. Uncomfortable suspension eye. Adjust the position of this lug only with a wrench. It would be better to make a rail with several holes, it is faster and more convenient to select the suspension position. 2. The design is too austere, a thin, long stick comes out of a large engine. 3. trimmer head cover, could do a little more. 4. Vibration. My hands were vibrating after 3 hours of work with interruptions. 5. Line consumption is huge. On 15 acres. the grass is about 7 hectares, the grass is usual, the height of max 20 cm. gone. All native line for trimmer from the bobbin plus 15 meters of purchased. The horror. And the trimmer head itself is miserable, the height of the line from the ground is 5-7 cm.
Mows everything, including curbs and sides of barrels.
CommentBought in place of a long-lived battery-powered trimmer Bosch, truth ostserviced faithfully for 4 years, and died ashes. What do I want to say? grass trimmer compared to FS-250, the grass is not mowed, and just gently stroked, STIHL cuts everything, grass, trees, legs (just kidding). I was able to take it away from her when she ran out of gas. STIHL is a very good grass mower.Regarding the price is worth the money.
AdvantagesGreat, good gasoline trimmer for the grass, there is nothing better than this gasoline trimmer for the grass, and this company, the best does not overheat, not broken, the gasoline flow is great, go with this scythe on the works, and just super, if the count at 9:00 am I start mowing and at 21:00 pm finish the 45-47 acres completely managed to mow.grass mower is just awesome.If anyone wants to call me in Krasnodar and ask for advice, please call 7-928-282-05-14 megaphone, 7-909-445-01-04 beeline Alexey, please call me tips advise.
CommentGreat, good gasoline trimmer for the grass, there’s nothing better than this gasoline trimmer for the grass, and this company, the best does not overheat, not broken, the gasoline consumption is great, go to work with this mower,and just super, if the count at 9:00 am I start mowing and at 21:00 pm finish mowing 45-47 acres completely manage to mow.The grass trimmer is AMAZING!If anyone wants to call me in Krasnodar and ask for advice, please call 7-928-282-05-14 megaphone, 7-909-445-01-04 beeline Alexey, please call me advice.
AdvantagesCuts everything! Effective tool for making money.Powerful motor.Notorious for “road workers” and utility companies. Easy “steering wheel” adjustment system
DisadvantagesThe scythe has only one eyelet for the carabiner.The length of the machine. Can’t fit in a small car. No tip with a fishing line in the kit.only knife.
CommentThis is my first gasoline grass trimmer. I bought it at the end of February for 15 450. Naturally, I have nothing to cut yet)) I took it to earn money and mow my own yard.First start at the end of April, there was a knife from the store as a cutting attachment. Important advice for the beginner. EXAMINE THE AREA FOR HARD PROTRUDING OBJECTS. I didn’t do that, ended up stabbing two or three times on protruding pipes and a couple of bricks. As a consequence the bent blade, which I don’t think is good for the job. Having begun to work with this knife the second time I noticed one fact. The normal low grass (20 cm.) cuts poorly, the grass is sort of “smeared” and does not cut completely. It was on another’s land and the result was very important.So “mowed” so about a hundred acres, I changed the knife on a line for a trimmer. The results were a joy to behold! Firstly, the mowing went much faster, and secondly, the grass began to cut almost to the root. As a result, 6 acres I covered about a couple of hours, spending a full tank of gasoline.For the third time I mowed already enough high (about 70 cm.) the grass on an area of about 8 acres. There were also burdock and thin shrubs.everything is cut like with usual mower. As I understood from the performance.I don’t care what I cut with it! When working with a knife you need to be very careful near bushes and small trees.CHOPES EVERYTHING! up to 4cm. branches.As the main cutting tool is left a fishing line for the trimmer. It’s quieter and much more efficient on almost any kind of grass. In a word, grass trimmer this.The Thing! I don’t know how cheap grass trimmers behave, but I’ve opted for the Stihl gasoline tool.I’ve worked with electric trimmers before, but I’m tired of cable clutter and poor performance. I also have a chain saw ms180.”Knocked out within a month of pruning work. Also a good machine. The verdict: For any kind of site and any kind of vegetation, don’t hesitate. For a living. pays off for a high volume of work because of its high price.I turned a blind eye to the “Chinese” origin. European-made is not worth the money.
Specifications STIHL FS 250 gasoline grass trimmer
Full information about the product, manufacturer, configuration, specifications and functions can be found in the technical documentation.
Advantages. power, easy start, no vibration, mowing is fast and easy.
CommentI’m mowing three plots. Before the Stihl, it was a Sparta25.I used it for 5 seasons.I’ve bought my Sparta FS 250 for almost one year and never started it, it was a good grass mower, never broke down. FS 250 mows three times faster, fuel consumption is one third less, I’m not tired, even if I have to mow all day long.Only a shoulder strap with sparta, I do not want to wear a Stihl vest.My neighbor’s fs 130, also not a bad option.
CommentaryI’m satisfied with the mower like a elephant. You can make a cut in the woods with a three-beam blade, not to mention mowing grass. There is no obstacle that can stop you with a scythe in hand. If you put a saw blade in, you can cut trees. Neighbor’s metal fence tears like paper.There is a video and discussion at http://www.forumhouse.ru/threads/144944/page-4
DisadvantagesCostly, ergonomics suffer, vibrations
Commentary To be honest. not so. I had a Castor Power 36D before. That was a grasshopper. Bought 10 years ago, no maintenance, put grease in gearbox once a year/2 years. And so far it’s working like clockwork. Too bad they no longer sell it, took her away from me. Now for the 250 Stihl. Took me a long time to find a mower to replace that one. Figured it had to be about 2 horses and a suspension vest. At first I thought Husqvarna, read the reviews, came to the conclusion that they often fall apart. I had my eye on STIHL, all the builders use Stihl chainsaws. Took the 250 instead of the 130.к. The price difference was only 1000 p. Pros. Starts well, works well, mows well too, the vest is not bad, cool glasses included)) Now the minuses. 1. Uncomfortable suspension eye. The only way to adjust the position of this lug is with a wrench. It would have been better to make a rail with several holes, it is faster and more convenient to select the position of the hanger. 2. The design is too austere, thin long stick comes out of a large motor. 3. trimmer head sleeves bitten off, could have done a bit more. 4. Vibrations. After 3 hours of intermittent work, my hands were ringing with vibrations. 5. The fishing line consumption is enormous. On 15 acres. Grass approx. 7 acres, grass is ordinary, max 20 cm high. gone. All native line for trimmer from the bobbin plus 15 meters of purchased line. Terrible. Yes, and the trimmer head itself is miserable, the height of the line from the ground is obtained by 5-7 cm.
Main advantagesMoves everything, including curbs and walls at barrels.
CommentsBought in place of the long-lived battery-powered trimmer Bosch, though faithfully served for 4 years, and died ashes. What do I want to say. grass trimmer compared to FS-250, the grass is not mowed, and just gently stroked, STIHL cuts everything, grass, trees, legs (just kidding). When I brought her to the cottage (my mother is 74 years old), she said, oh, how heavy, but let me try to mow, I was able to take it away when only ran out of gasoline in the tank. STIHL is a very good grasshopper.Price is right on the money.
AdvantagesGreat, good gasoline trimmer for the grass, there is nothing better than this gasoline trimmer for the grass, and this company, the best does not overheat, not broken, the gasoline flow is great, I go to work with this scythe, and just super, if the count at 9:00 am I start mowing and at 21:00 pm finish the 45-47 acres completely managed to mow.STIHL Grasshopper is BEAUTIFUL.If anyone wants to call me in Krasnodar and ask for advice, please call 7-928-282-05-14 megaphone, 7-909-445-01-04 beeline Alexey, please call me tips advise.
CommentsA great, good gasoline trimmer for grass, there’s nothing better than this gasoline trimmer for grass, and this company, the best does not overheat, not broken, gasoline consumption is great, I go to work with this scythe, and just super, if the count at 9:00 am I start mowing and at 21:00 pm finish mowing 45-47 acres completely manage to cut.The grass mower is awesome.If anyone wants to call me in Krasnodar and ask for advice, please call 7-928-282-05-14 megaphone, 7-909-445-01-04 beeline Alexey, please call me tips advise.
AdvantagesCuts everything! Effective tool for making money.Power of the motor.Has not been recommended by “road builders” and municipal services. Convenient “steering wheel” adjustment system
DisadvantagesThe scythe has one eyelet for a carbine.The length of the machine. Wouldn’t fit in a small car. No need for a fishing line attachment.only blade.
CommentThis is my first gasoline grass trimmer. I bought it at the end of February for 15 450 (Naturally, then there was nothing to mow)) Took it in order to earn money and mow my area.For the first time started at the end of April, as a cutting attachment was a knife still from the store. Important advice for a beginner. LOOK AROUND FOR HARD, PROTRUDING OBJECTS. I didn’t, ended up stabbing two or three times on protruding pipes and a couple of bricks. As a consequence the knife is bent and I don’t think it is good for the job. The second time I worked with this knife I noticed one fact. ordinary low grass (20 cm.) mow badly, the grass is like “smeared” and not completely cut. It was on someone else’s land and the result was very important.So “mowing” so about a hundred acres, I changed the knife on a line for a trimmer. The result was a wild delight! Firstly mowing went much faster, and secondly the grass began to be cut almost to the root. In the end, six acres I covered in about two hours, spending a full tank of gasoline.For the third time I mowed quite high grass (approx. 70 cm.) grass on an area of about 8 acres. There were burdock and thorny bushes.All cuts without a talk like an ordinary scythe. As judged by its performance.It doesn’t care what it cuts! When working with a knife, you need to be very careful near bushes and small trees.CHOPES EVERYTHING! up to four centimeters. branches.As the main cutting tool I left the line for the trimmer. It’s quieter and far more efficient on almost any kind of grass. In short, it’s the grass saw.The thing! I do not know how to behave cheap trimmers for grass, but of gasoline-powered tools made a choice in favor of Stihl.I used to work with electric trimmers before. I got tired of the cable clutter and the low output. I also have the ms180 chainsaw.”paid off” itself for a month of pruning work. Also a good machine. The verdict: for any kind of terrain and any kind of vegetation. don’t hesitate. For a living. will pay off in a high volume of work because of the high price.I turned a blind eye to the “Chinese” origin. European builds are not worth the money.