MS 170
A lightweight chain saw designed for woodcutting tasks around the home.
The STIHL MS 170 is the perfect lightweight chain saw for homeowners seeking a great value. Compact, lightweight with just the right amount of power, the MS 170 makes quick work of trimming or cutting small trees, fallen limbs after a storm, and other tasks around the yard. And even at its great price, the MS 170 has many of the same design features the professionals depend on.
Discover for yourself some of the features that make these chain saws ideal for around-the-home use:
- STIHL manufactures its own saw chain for optimal performance and compatibility with your STIHL chain saw. Swiss-made STIHL OILOMATIC® Saw Chain is pre-stretched before it leaves the factory, which helps eliminate excessive stretching during the break-in period, reducing maintenance time and component wear.
- Our Ematic™ Bar Lubrication System delivers proper lubrication while reducing oil usage by up to 50%.
- The Automatic Bar and Chain Oiler allows the operator to concentrate on cutting rather than bar and chain lubrication.
- The Electronic Ignition provides dependable and easier starting along with smoother running and performance.
- STIHL chain saws feature an Anti-vibration System to help reduce operator fatigue and improve comfort.
- The STIHL Quickstop® Chain Brake System is designed to stop the chain in fractions of a second and can be activated manually or by inertia if the kickback force is sufficient.
- The Translucent Fuel Tank allows the operator to easily check the fuel level before starting work while the Balanced Fuel and Oil Tank are designed to make sure you run out of fuel before you run out of bar oil, thus extending the life of the saw chain.
- The Front Handle is designed for a secure grip and is ergonomically angled for comfort.
- Front and Rear Hand Guards are designed to reduce the risk of injury.
- Bumper Spikes help prevent pull-in and provide better control, making cutting easier.
- An All-position Carburetor allows the engine to run at full power in any approved operational position.
- A Combination Wrench/Screwdriver is supplied, providing convenient adjustments to the saw.
- The Chain Catcher helps reduce the risk of operator contact by a chain if it should break or derail.
- Features like Heavy-duty Centrifugal Clutches, High-pressure Alloy Die Castings and STIHL-designed Cylinders help provide durable, long-lasting wear.
- Homeowners will also enjoy lightweight High-tech Polymer Housings for greater impact resistance, as well as Easy-to-Access Air Filters and Protected Spark Plugs.
- The Spark Arrester Muffler is designed to reduce noise levels and the emission of sparks.
- The Smooth Clean Design has no rough edges to snag on clothing or brush.
STIHL is the #1 selling brand of gasoline-powered handheld outdoor power equipment in America and the Number One selling brand of chain saws in the world*. Sold and serviced through our network of independent Dealers, STIHL power tools deliver versatility and dependability. STIHL tools are German engineered, and many are built right here in America and exported to over 90 countries around the world.* To find one of the over 8,000 STIHL Dealers near you, visit the Dealer Locator.
*A majority of STIHL products are built in the United States from domestic and foreign parts and components. "Number one selling brand" is based on syndicated Irwin Broh Research as well as independent consumer research of 2009-2011 U.S. sales and market share data for the gasoline-powered handheld outdoor power equipment category combined sales to consumers and commercial landscapers.
| MS 170 Specifications | |
| DISPLACEMENT | 30.1 cc (1.8 cu. in.) |
| ENGINE POWER | 1.3 kW (1.7 bhp) |
| POWERHEAD WEIGHT | 3.9 kg (8.6 lbs.) |
| GUIDE BAR LENGTHS* (Recommended ranges) | 30 to 40 cm (12" to 16") |
| FUEL CAPACITY | 250 cc (8.5 oz.) |
| CHAIN OIL CAPACITY | 145 cc (4.9 oz.) |
| OILOMATIC® CHAIN | 3/8" PMM3 |
| STIHL recommends #3610 (61 PMM3 55) OILOMATIC® saw chain and 16" 3005 008 3913 STIHL ROLLOMATIC® Mini guide bar combination. The actual listed guide bar length can vary from the effective cutting length depending upon which power head it is installed. | |
Important Information
WARNING! The occurrence called “kickback” can cause serious
or fatal injury. Always read the instruction manual carefully before
using your saw. STIHL uses a green and yellow color-coding
system to help you select a powerhead, bar and chain combination
that complies with the kickback requirements of ANSI
Standard B175.1 (gasoline-powered saws) and §30 of UL 1662/
ANSI Standard B175.1 (electric chain saws). Ask your STIHL
dealer about safe operating procedures and the advantages of
the STIHL Quickstop® chain brake, STIHL Quickstop® Plus additional chain braking feature (Q), STIHL reduced kickback bars and STIHL low-kickback
saw chains.
STIHL recommends the use of green reduced kickback bars and green low kickback chains on all STIHL chain saws.
* The actual listed guide bar length can vary from the effective cutting length depending upon which power head it is installed.
Note: STIHL recommends use of fuel with no more than 10% Ethanol content. Using fuel with greater than 10% Ethanol content may cause damage to your equipment and may void your STIHL warranty. Learn More…
WARNING! Improper use of any power tool may cause serious
or fatal injury. Read, understand and follow carefully the operating
and safety instructions in your instruction manual before using such products.
STIHL products sold through U.S. STIHL dealers are for distribution in the United States only.
Model Features
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STIHL Quickstop®
STIHL chain saws are equipped with a chain stopping system designed to reduce the risk of injury in certain kickback situations. It is called a STIHL Quickstop® chain brake. The STIHL Quickstop® chain brake is designed to stop the rotation of the chain if activated by the operator’s hand or by inertia if the saw kicks back with sufficient force. In some working positions, the STIHL Quickstop® chain brake can be activated by inertia, stopping the chain within fractions of a second.
See it in action! -
Anti-Vibration System
STIHL has developed a system for minimizing the vibration levels of handheld outdoor power equipment. The STIHL anti-vibration system helps reduce operator fatigue and provides a more comfortable working experience. -
IntelliCarb™ Compensating Carburetor
The IntelliCarb™ Compensating Carburetor is designed to automatically adjust the air/fuel ratio when the air filter becomes restricted or partially clogged and maintains the engine’s correct RPM. IntelliCarb™ uses air from the clean side of the air filter to control the diaphragm and flow of fuel. As the air filter becomes dirty and less air is available for the carburetor, the IntelliCarb™ system adjusts the fuel flow to compensate for the decrease in air flow. This is in contrast to typical carburetors that utilize this air from the “dirty” side of the air box. -
Ematic™ Lubrication System
The Ematic™ guide bar when used with STIHL OILOMATIC® saw chain will provide proper lubrication and less oil consumption than conventional methods. The system works because two ramps, strategically placed in the guide bar rail, help contain the flow of oil and direct all lubrication to the sliding faces of the bar and chain links as well as the rivets and driver holes, which in turn can reduce bar oil consumption up to 50%. -
Master Control Lever™
The Master Control Lever™ is an easy to use single lever, operating the choke, starting throttle lock and on-off switch. The operator must pull the throttle trigger before moving the Master Control Lever™ to the choke position.
Standard Features
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Common Features for Chain Saws
View the features common to many STIHL chain saws.
Optional Accessories
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Quick Chain Adjuster (QCA) (B)
The Quick Chain Adjuster (QCA) (B) allows the user to adjust the tension of the chain without the use of tools. This allows for easy chain adjustment.
See it in action!
You Will Also Need
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STIHL Bar and Chain Oil
Don’t let friction cut down your chain saw’s performance. STIHL bar and chain oil is specially formulated to adhere to your chain saw’s bar and chain, providing optimal lubrication. Special oils help prevent sap and pitch from clinging, prolonging cutting performance and the lifespan of your chain parts. Ideal for use in moderate temperatures, STIHL bar and chain oil provides quality protection for your chain saw – bar none.
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Woodsman Chain Saw Carrying Case
Just like our chain saws, our case can handle multiple tasks. Use it to carry and transport your chain saw to and from the work site. It is also ideal for storage when your workday is done. It’s unique, removable bar scabbard has built-in tool holders to carry tools to the cutting site. Fits MS 170 to MS 460 with 20” bar. (Excludes MS 441 and wrap-handle saws.) Replacement parts available.
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HP Ultra 2-Cycle Engine Oil
No matter how you slice it (or trim it or shred it), there’s no better protection for your high performance 2-stroke engine than STIHL HP Ultra. This 2-cycle engine oil has outstanding engine cleaning characteristics, plus “ultra” lubricating qualities that’s superior to other 2-cycle engine oils. This fully synthetic oil is also highly biodegradable, degrading by 80% in 21 days. We’re so confident this oil will protect your engine, we’ll double your STIHL limited warranty* when you use it. It’s that good.
*Double your warranty when you include 6 bottles of STIHL HP Ultra Oil or 6 cans of STIHL MotoMix® Premixed Fuel with your STIHL product purchase. Double limited warranty protection applies to STIHL gasoline-powered products purchased and registered for personal non-income producing, family and household purposes only. Other restrictions apply. See dealer for details.
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For Your Safety
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Pro Mark™ Apron Chaps - 9 layer
For heavyweight protection that won’t weigh you down, choose Pro Mark™ Apron Chaps from STIHL. They’re rugged, yet comfortable to wear and easily fit over your work clothes. Sewn into the legs of the chaps are nine layers of Engtex®, a cut-retardant material designed to reduce the risk or severity of injury to the body parts covered by the pads in the event of contact with the rotating saw chain of a gasoline-powered chain saw. The open-back design of these chaps makes them a great choice for hot working conditions. These Pro Mark™ apron chaps provide three additional layers of Engtex® than our standard apron chaps. STIHL chain saw protective apparel is also wash and wear, unlike some other brands that require dry cleaning or light surface cleaning.
The STIHL Pro Mark™ designation identifies products for professional users.
Available color: High Visibility Orange
Available lengths: 32", 36", 40"
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Cut-Retardant Mitts
Get a grip on your chain saw with STIHL Cut-Retardant Mitts. Made with water-resistant nylon backs and goatskin palms, these mitts offer exceptional comfort and grip without sacrificing dexterity. Engtex®, a cut-retardant material, is sewn into the back of the left glove. These mitt-style gloves also feature a separate index finger for chain saw throttle operation, while hook and loop wrist straps make fitting a breeze. These chain saw protective gloves are an excellent choice for the professional logger. STIHL chain saw protective apparel is also wash and wear, unlike some other brands that require dry cleaning or light surface cleaning.
Available color: High Visibility Orange
Available sizes: S (8), M (9), L (10), XL (11)
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STIHL Forestry Boots
Your work can take you to some of the toughest terrain. STIHL Forestry Boots are lined with two layers of cut-retardant Kevlar®, helping protect you from falling objects and hazards underfoot that can cause punctures. The boots are also flexible and water-resistant thanks to a leather upper construction. Foam padding from the heel to the wide steel toe enhances comfort while its Vibram® soles provide excellent abrasion resistance.
Meets OSHA Reg. 1910.266
Available sizes: 6-13 (in half-size increments), 14
NOTE: Women should order two sizes smaller than their normal shoe size.
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STIHL® Forestry Helmet System
The woods can hold many dangers. Stay one step ahead with the Forestry Helmet System from STIHL. The protection starts with a hard shell of ABS thermoplastic. It gets even better with a six-point, ratchet-style suspension system that absorbs shock and keeps the helmet stable while you work.
The system also features a Cool Guard sweatband to keep perspiration out of your eyes, as well as a built-in rain gutter to direct rain away from your face during inclement weather. Adjustable hearing protectors comfortably reduce noise while an epoxy-coated steel full-face screen helps protect from flying debris.
Hard hat meets ANSI Z89.1-2003 Type 1 Class G & C. Hearing protectors meet ANSI S3.19-1974 and have a Noise Reduction Rating (NRR) of 24 dB(A).
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Chain Saw Safety and Maintenance - Video
Product Instruction Manual (PDF)
Product Safety Manual (PDF)
STIHL Limited Warranty
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