Product Description Take the next leap in saw chain technology. PowerSharp is an easy-to-use, precision sharpening system that gives chain saw users the power to sharpen their chain in a matter of seconds with a simple-to-use attachment. Fast. From dull to sharp in as little as 3 seconds. Easy. Only three steps to faster, easier cutting. Portable. Bar-mount sharpener is lightweight, durable, and highly visible. Precise. Exact alignment between cuter and honing surface for perfect angles and knife-sharp edges. Tough. PowerSharp chain is as durable and hardworking as other Oregon 3/8-inch pitch, low-profile chain. PowerSharp is a system that includes the PowerSharp Chain, the PowerSharp Guide Bar, and the Bar-Mount Sharpener working together; they provide a fast, simple, and portable method for sharpening saw chain with precision. Any cutting tool will dull with use, but the outdoor jobs that chain saws tackle are especially demanding. Contact with rocks, metal, or even dirt can quickly dull chain, making common tasks such as cutting firewood or trimming trees difficult and time-consuming. It is time to sharpen the saw chain when cutting is slower and more difficult or the wood chips become smaller, in extreme cases turning to saw dust. Before PowerSharp, chain saw users had three options: manually sharpen chain themselves, take the chain to a shop, or simply do nothing. Manual sharpening requires specialized tools and techniques � and time. A trip to the shop means time off the job. Doing nothing leads to frustration with the tool or task. When the chain becomes dull, attach the bar-mount sharpener to the PowerSharp guide bar by sliding the steel pins through the guide holes, then closing and latching cover. Press the foot of the sharpener against a solid object, applying light pressure for 3-5 seconds. And you are back in the cut with a precision-sharpened chain. Amazon.com With the Oregon PowerSharp Starter Kit, you can sharpen your chainsaw chain on the saw, on the job, in seconds. This kit is designed for 16-inch Craftsman, Echo, Homelite, Poulan, Remington, and other chainsaws. No need for special tools or expertise, no need to remove the chain; in three easy steps, you can have a precisely sharpened chain. The starter kit comes complete with a PowerSharp chain, bar-mount sharpener, sharpening stone, and guide bar--everything you need to have your chain cutting once again with ease and precision.541222 Starter KitAt a GlanceSharpens on the saw, on the job, in three easy stepsUse with 16-inch Craftsman, Echo, Homelite, Poulan, Remington, and other chainsawsBar-mount sharpener attaches securely--no special tools requiredLight and small enough to be carried anywhereEach chain can be sharpened from 5 to 15 times depending on conditionsThe large, spring-loaded, treaded foot allows you to apply controlled pressure, even against uneven surfaces. View larger. Click here to see how it works. From Dull to Sharp in Three Easy StepsThe PowerSharp offers a new alternative to sharpening a chain manually on your own, taking it to a shop, or trying to make due with a dull chain.When your chain becomes dull, simply attach the bar-mount sharpener to the PowerSharp bar by sliding the steel pins through the guide holes--there's no need to remove the chain from the saw. Close and latch the cover and then start the chainsaw. While accelerating the chainsaw, press the foot of the sharpener against a solid object, applying light pressure for three to five seconds. The large, spring-loaded, treaded foot allows you to apply controlled pressure, even against uneven surfaces. Within seconds, you're back in the cut with a precision-sharpened chain.Precision-Sharpening Mechanism Can Be Used Multiple TimesWith steel pins that go straight through the bar, the design of the PowerSharp sharpening system ensures that there is exact alignment between the cutter and the honing surface, for perfect angles and knife-sharp edges. The thick, crescent-shaped sharpening stone provides a long-lasting honing surface.The guidance drive link works together with the cutter, cutter depth gauge, and depth gauge tie strap to provide the stability required to create a consistent cutting edge. The chain and the sharpener work together, as the diamond-coated dresser link resurfaces the stone, ensuring optimum honing angles.Designed to last as long as conventionally sharpened chains, each PowerSharp chain can be sharpened from 5 to 15 times, depending on conditions. A new sharpening stone is included with each new replacement PowerSharp purchased and should be replaced. This kit is for 3/8-inch-pitch low profile chain, .050-inch-gauge cutting systems with 56-drive links.Portable Sharpening SystemThe PowerSharp Starter Kit is small enough to fit into your toolbox, and light enough to carry with you, so you'll always be ready to sharpen a dull chain. Though the four components of the system are lightweight, they are extremely durable. The bar-mounted sharpener has a highly visible yellow casing that prevents misplacing the sharpener in the field, even in low light.The Oregon PowerSharp Starter Kit is covered by a limited lifetime warranty against defects in materials or workmanship.What's in the BoxChain, bar-mount sharpener, sharpening stone, guide bar, instructions. Starter Kit 541219 541220 541221 541222 541223 Brand Stihl Craftsman, Echo, Homelite, Poulan, and others Stihl Craftsman, Echo,Homelite, Poulan, Remington, and others Craftsman, Homelite,Poulan, and Poulan Pro and others Chain Length 14 inch 14 inch 16 inch 16 inch 18 inch Chain Pitch 3/8" low profile 3/8" low profile 3/8" low profile 3/8" low profile 3/8" low profile Chain Gauge .050" .050" .050" .050" .050" Chain Drive Links 50 52 55 56 62 * Replacement Oregon Chain Part Number 91VG-50, 91P-50, or S50 91VG-52, 91P-52, or S52 91VG-55, 91P-55, or S55 91VG-56, 91P-56, or S56 91VG-62, 91P-62, or S62 * Replacement Stihl Chain Part Number 63PM1-50 63PM1-55 * These are the original replacement chain part numbers that correspond to which starter kit to purchase