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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 15reviewers.
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
Rated 5 out of 5 by 660R STIHL Chainsaw Gets the Job Done This is a great chainsaw. It has proven that it is reliable, powerful, easy and fun to use. We bought this tool for my wife to use and she loves it, overall. The only downside for her is the weight.Our property has a lot of trees that were destroyed by the fire in our area. Over the last few years, we have been taking trees down as they have proven to be a danger to either structures or lives leaving the rest for the use of wildlife and providing shelter for the new trees and foliage as they develop. The STIHL MS660 has made this chore easy to keep up with over the last year. Our family can highly recommend this saw for year round use. October 5, 2013
Rated 5 out of 5 by Love the 660 I have run and owned many 66 Stihls, from the Red Light 066 to the very newest MS660, and love them all. The newer ones lack in power compared to the older ones, but that can be overcome. The things I like about my new MS660 are the new version of the full wrap handlebar, the 088 style bar studs, and the fact that it is the only pro Stihl saw to come with threaded fuel/oil caps, especially since that means the gas cap is larger than on any of the other saws. In western softwoods, even bone stock the MS660 will pull a 42" bar just fine. Hands down, I feel the 66 (regardless of which side the 0 is on) is the best made Stihl ever, and it is still almost the same as it was when it came out back in the early '90s. This is a saw that is used day in and day out to bring down a lot of timber in the Pacific Northwest, there is a reason for every feature (or lack thereof) and for every bit of the design. This saw has stood the test of time. July 16, 2013