MS 251 WOOD BOSS®

Important Information

IMPORTANT SAFETY INFORMATION 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 chainsaws). Ask your STIHL dealer about safe operating procedures and the advantages of the STIHL Quickstop® chain brake, STIHL Quickstop® Plus additional chain braking feature, 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 chainsaws.

* The actual listed guide bar length can vary from the effective cutting length based on which powerhead it is installed on.

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.

• • SPECIAL OFFER
    

    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 Oil. This 2-cycle engine oil has outstanding engine cleaning characteristics, plus “ultra” lubricating qualities that are 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 purchase either STIHL HP Ultra Oil (six pack) or STIHL MotoMix® Patented Premixed Fuel (one gallon minimum) with your STIHL product purchase. Double limited warranty protection applies to select STIHL gasoline-powered products purchased for personal non-income producing, household purposes only. Other restrictions apply. See dealer for details or refer to STIHL’s Limited Warranty Policy.
    
    Unopened container shelf life: 4 years from the date of filling, in originally sealed containers.

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    STIHL MotoMix®

    STIHL MotoMix® is our patented premixed fuel, specially blended for ultimate performance. Like a sports drink for your engine, this 50:1 mixture is a combination of premium non-ethanol, high-octane motor fuel and our highest-quality STIHL HP Ultra Oil. Clean and convenient, MotoMix® eliminates the hassle of mixing your own 2-stroke engine fuel while providing superior performance and lubrication. Plus, we stand behind this formulation by doubling the limited warranty when you include MotoMix® with your power tool purchase. STIHL MotoMix® contains no ethanol, allowing it to maintain stability for up to two years after the seal is broken - so it stays fresh in your equipment during long storage periods. It’s no surprise that MotoMix® is the official fuel of the STIHL TIMBERSPORTS® Series.

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    2 in 1 Filing Guide

    The STIHL 2 in 1 Filing Guide simplifies the process of sharpening your saw chain by completing two functions at once – sharpening your saw chain cutters and lowering your depth gauges. The ease and accuracy of this unique accessory makes it the perfect system for maintenance of your STIHL chainsaw. The system includes two round files, one flat file, and comes with a unique file holder and filing guide. The STIHL 2 in 1 Filing Guide gets more done with each stroke, so you can spend less time sharpening your saw chain and more time putting your chainsaw to work.

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    Work Gloves

    These STIHL Work Gloves are ready to go to work for you. Made of premium goat skin leather at the palms and fingertips, they provide durability and softness for a comfortable fit. The high-visibility orange back of the gloves feature breathable knit material for improved airflow. And the knit wrist is elongated for a secure fit under a sleeve, keeping out dirt and other debris.
    
    Materials: Goat skin leather with knit backing
    Available sizes: One size fits most

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    Function Apron Chaps - 6 Layer

    Function Apron Chaps - 6 Layer  from STIHL are made from rugged, 400-denier nylon and feature the same UL® classified protection as our other chaps. Just snap them over your pants and you’re ready to go. Sewn into the legs of the chaps are six layers of Avertic® Pro by Engtex®, a cut-retardant material designed to clog the sprocket and stop the saw chain on a gasoline-powered chainsaw in case of accidental contact with the rotating saw chain. The open-back design of these chaps makes them a great choice for hot working conditions.
    
    
    See it in action!

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    Function Basic Helmet System

    The STIHL Function Basic Helmet System can help protect you during chores using outdoor power equipment like chainsaws and pole pruners. A vented helmet shell provides air circulation while a six-point pinlock suspension makes for a secure fit and shock absorption. The helmet system also features a slim design to reduce snagging risks. The Function Basic Helmet System is Class C certified and includes NRR 22 hearing protection. At 1.6 pounds, the helmet system is a good weight for comfort.

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    Deputy II Glasses

    With their rubber nosepieces and straight-back temples with rubber inserts, these glasses provide the protection you need without sacrificing comfort. The hard coat polycarbonate lenses are designed to protect against scratches and 99% of harmful UV rays. The STIHL Deputy II Protective Glasses deliver quality protection in a stylish, frameless construction.
    
    
    
    Meets ANSI Z87.1 Standard
    
    
    
    Available lens colors: Ice Blue Mirror, Forest Gray