Powersharp® Chainsaw Precision Chainsaw System - Powersharp® Is An Easy-to-use Precision Sharpening System That Offers Chainsaw Users The Ability To Sharpen Their Chains In Seconds With A Simple-to-use Accessory. • Fast. From Blunt To Sharp In Just 3 Seconds. • Easy. Just Three Steps For Faster, Easier Cutting. • Portable. The Bar Sharpener Is Light, Durable And Highly Visible. • Accurate. Exact Alignment Between The Blade And The Surface To Be Sharpened For Perfect Angles And Sharp Edges. • Robust. The Powersharp® Chain Is Durable And Durable Like The Other 3/8 ”low-profile Oregon Chains. - Patent-pending Features Put Powersharp® One Step Ahead Of Other Past Or Present Sharpening Methods. With The Passage Of The Chain Through The Sharpener Mounted On The Bar, Only The Upper Cutting Edges Come Into Contact With The Stone. The Special Design Of The Cutting Edge Depth Delimiter, Of The Connecting Link And Driving Link, Allow Precision Cutting. The Diamond Dressing Mesh Restores The Surface Of The Wheel, Ensuring Perfect Contact Of The Cutting Edge With The Wheel Itself.