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All the professional power of the MS 660 MAGNUM® chainsaw, with a wrap-around handle (R).

Rated 4.9 out of 5 by 17reviewers.
Rated 5 out of 5 by Everone agrees. Awosm saw If you read the other reviews it baiscly sums it up. Thing I'm surprised no one els said is that theses are very choked down from the factory for emesions reasons.Get air to go in and out faster and a few other tricks and it's a whole new ball game.Turns into a true chip slinging monster August 23, 2014
Rated 5 out of 5 by This is the "do it all saw" if you have common sense and caution..... I bought the 660 with a 36" bar with a very aggressive chain to fell and buck firewood from upright trees.... This is the Rolex of saws... An 880 was just a bit too heavy for my use but I feel this is just a scaled down version that just keeps going and going. Granted I am very OCD about maintaining my tools and this is no exception yet it does not require the "babying" it gets. The best advice I was ever given and it holds true to any saw is to dilute the cutting oil with a bit of mineral oil or kerosene and it not only keeps the chain and bar cooler and tosses gunk out but this saw has NEVER stalled on me or given me one bit of trouble. I keep a spare plug and filter in the case which has never been field needed- always fires up on a pull or three and will cut the hardest of woods like butter. I sharpen my chains as needed and keep spares with me at all times. When the motor sounds loaded it's time to swap or sharpen the chain. I have several other Stihl saws and yard tools as well as Husky and others... When we are going deep for hardwoods nothing but the white and orange come with us. They just work and the 660 is a monster that I will put up to the "Pepsi challenge" with any other vendor's saw. I can do all the maintenance on my own and not have to pay a shop. It works for me- It's gonna work for you!!! August 5, 2014
Rated 5 out of 5 by this saw is a tree eating beast I love my 660 I have a small tree service and have been running into quite a few monster cherry tree's and this saw slices right thru them with a 36" bar no problems I bought it too replace my 045 mag 2 and 056 super because finding parts for these saws is getting tuff so I needed too get something newer and I was a little nervous about buying this saw because of all the changes that sthil has had too make because of emissions laws and the lack of power these changes have brought but the 660 is fantastic it does what I want it to do when I want it done no hesitation starts right up and man does it go May 15, 2014
Rated 5 out of 5 by ms 660 magnum Has 7 hp of brute power. Saws thru The hardest oak with ease. I have 2 044s for 20 years they have been good to me.The only suggestion it would make is the air intake system needs a high flow filter system. it seems that small sawdust does get thru the filter . The old saws had a rubber gasket where the filter butted up against the housing better plus they had dust bands and a sponge filter like the old 44s- . needs the high flow type system with oil spray and it would last like my others,and dual port muffler wouldn't be bad. May 11, 2014
Rated 5 out of 5 by Best saw there is I have been a professional timber faller for the last 12 years, I have used lots of power saws but as far as I am concerned the 660 is by far the best. They are the toughest saw ever made, I have used them in all kinds of extreme conditions, the heat, rain, and snow and they never miss a beat. Easy to maintain and to fix (rare), not to mention plenty of power. I hope that they are not discontinued, think I would quit falling timber if I couldn't get a 660. I highly recommend this saw. May 8, 2014
Rated 5 out of 5 by Very easy Starting I just got the 660 mag after x-mas (about 1 month now). I have only used it a few times..actually just got done cutting down a 3' diameter red oak tree.I love the saw, but it is a little heavy#I needs to be heavy for all the power#It starts very easy in the cold. It has been around 0 and when it is cold 4 pulls and its running...amazing. Hope it stays this way the rest of its life.GO BUY ONE February 12, 2014
Rated 4 out of 5 by Love this saw it has great power. Just bought this saw and it is a power house. I own a Husky 272 XP about 5 hp and the difference is very noticeable in power. My first cut was on a 4ft diameter red oak . I'm using the 25 inch bar and the cut was fast and straight. I find with the power the cuts are fast and fuel burn is less than the Husky. Two thumbs up for this saw. The weight was noticed at first but once I started using the saw then the weight was not a factor. Stihl did their home work on this unit. January 27, 2014
Rated 5 out of 5 by The best pro saw I've used. I love powersaws, Ive cut professionally for 13 years with many saws. My 660s are the fastest and pull chips on a 36 or 42" bar 6-8 hours a day, day in and day out. Theyre not too heavy and very reliable. Really hoping they arent discontinued. January 17, 2014