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A professional chainsaw with one of the best power-to-weight ratios in the industry.

Rated 5 out of 5 by 65reviewers.
Rated 5 out of 5 by best choice of saws My wife bought me this for Christmas and it has cut down my cutting time by over 50% ...I sold my off brand saw and moved up ...the duel port muffler is extra power and let's the neighbor know my Stihl 660 is running! This cuts through 25 bundles of wood so fast its amazing...the .404 chain and 25 inch bar makes me smile every time I use it...a load of logs just seems to be a wheelbarrow size when this saw chews through it so fast! Thanks STIHL! May 26, 2013
Rated 5 out of 5 by The best big saw besides the ms880 I recieved this saw as a gift from a friend. My 660 has the dual port muffler which is a great feature to have as it adds a little more power. Comfortable easy to use always starts reliable. High compression and lots of power. Great sounding saw when idling and cutting. I use the Rollomatic ES bars (20 and 28 inch) with Stihl chain. Makes for fast cutting. Great saw for all around use from cutting small fallen limbs in yard to small medium and large size trees. This is my in car saw when bad weather hits my area incase a tree falls in the road or limbs. I use Stihl bar oil and tru fuel 40:1 mix in this saw. This saw always gets the job done. January 3, 2015
Rated 5 out of 5 by 660 work horse The 660 Stihl is my workhorse, it doesn't starve for power always starts when I need it to. from -40below winters felling timber to 90deg summers milling timber this is the saw for anyone who wants a QUALITY TOOL. if you use an 8 pin sprocket on any bar under 36" you will be amazed how fast it cuts spend the money and invest in a pro saw anything less is a waste of money December 8, 2014
Rated 5 out of 5 by Exceeds expectations in every category The emerald ash boror has made lots of firewood available in our area. My 290 was doing well, but with so much wood and so little time, I took the plunge and got the 660 with 28" and 36" bars. This saw wears out the wood, and me too. Easily 4 times faster than anything else I've used. From a production standpoint, I've never seen or used anything like it.Keep a sharp chain and a clean air filter on it, and the job is done in no time.STIHL has left no stone unturned in this design. Outstanding piece of equipment. November 25, 2014
Rated 5 out of 5 by This is more than a work horse be ready for a work out I bough my magnum just a few days ago and with the saw I got the 32 inch bar for the tree I was cutting was 49 feet long and the diameter was 32 inch when I started I already knew I had of some what of a beast ,this saw went through the log like a hot knife going through butter the tree was cut up in a matter minutes grant the price was a bit much but with this caliber of tree the cost was right ok this was will wear you out if you are not use to this kind of work.would I recommend it most defiantly November 11, 2014
Rated 5 out of 5 by What a saw What can i say about the 660? This saw is legendary durable powerful and dependable. The saw it self runs very smooth even when cutting. I have to say it is one of my most dependable saws. Its always been there when i need it. The nice part of have a saw like this any thing i encounter it will cut up. i just grin when some one says do you think the saw will handle it. I just grin and say i think so. They are so surprised when it handles the wood as easy as it dose. I just politely tell them its not your everyday saw. I have ran this saw a lot always puts a smile on my face when i run it. Its a saw you just enjoy running at least i do. The saw is very straight forward to work on. That s another thing old style crabs no electronics. Trust me not missing them Also love the old screw caps. I cant tell you how many times i messed with flippy caps to get them right. As long as you feed it premium fuel and synthetic oil its happy . For all that say its eats gas i say yes it dose. But for all the power it makes you have to feed the ponies well for it to run like i dose. I hate to see such a magnificent saw leave us. Stihl is going to the ms 661. It has some big shoes to fill. I hope it fills them very well. Only time will tell. One thing is for sure i will always have a MS 660 with me. I have one and no it will never be fore sale. Saws been to good to me to part with. I could never give it up It be like giving up on your best friend you just don't do it October 23, 2014
Rated 5 out of 5 by Lots of power ... Wow Plenty of power, really a great chain saw. I use it in the Mountians of Montana. Nothing this saw can't handle. What a great Saw. Can't say enough.... Really easy to crank, runs really smooth, cut through a 30" tree like butter. October 22, 2014
Rated 5 out of 5 by This user was blown away! I have never had a chainsaw out last me in a day of cutting firewood! I cut right around 4 cords and had my trailer maxed out way before this saw was done cutting. I ordered the oliomatic chain as well, and it matched the 660 in readiness! For the past 9 years, it has taken me all day to get a good trailer load of post oak firewood, I was done by lunch this year. I am going to buy a bigger trailer after letting this beast loose. The whole day I was waiting on this saw "bog" down and stop spinning while I had the full bar buried in wood and it did not. Everyone out at the ranch were quite jealous. I have never experienced anything like this and I only felt dumb for not buying one of these bad boys years ago. October 20, 2014
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