For rapid and effective sharpening of your chainsaw chain, choose Oregon’s PowerSharp Sharpener Starter Kit. The easy-to-use sharpening kit lets you sharpen quickly on the saw, without having to remove the chain - saving you time in the field. Lightweight, three-piece set includes a guide bar designed for PowerSharp, the PowerSharp chain and the PowerSharp bar-mount sharpener. Go from dull to sharp in as little as three seconds. Enjoy highly portable, accurate and ultra-fast sharpening in seconds. PowerSharp clamshell sharpener is only to be used with Oregon PowerSharp bars and chains. • Oregon chainsaw sharpening set - uses 52 drive link PowerSharp chain (PS52) • Pitch/Gauge: 3/8" low profile / 0.050 • Bar length: 14 inches (35cm) • Tail mount: A041 • Fast, easy to use, portable, precise and tough • Sharpen on the saw in as little as 3 seconds • Available in a wide range of sizes to fit your specific model • Universal sharpening system for a variety of makes and models • Sharpening stone included with the combo • Compatible with many models from the following brands: Craftsman, Cub Cadet, Dolmar, Echo, Efco, Homelite, Husqvarna, John Deere, Jonsered, Makita, Olympyk (Oleo-Mac), Poulan/Poulan Pro, Power Pruner/Echo Power Pruner, Stihl, Redmax, Ryobi. Saw chain identification: Always refer to the number stamped on the drive link of your old chain to assure correct gauge and pitch, or refer to your owner’s manual. You will also need to know your chainsaw cutter type and sequence, in order to order the correct part to fit your saw chain. • Chain Gauge is the Drive Links thickness where it fits into the guide bar groove, matching the guide bar gauge. • Chain pitch is the size of the chain and is defined as the distance between any three consecutive rivets divided by two. Pitch is important because the drive sprocket must be the same pitch as the chain, and if applicable, the bar nose sprocket.