DOP541662SN Oregon® PowerSharp® Starter Kit (all Components) No. 541662. Fits Snapper Chain Saws. Kit contains (1) PowerSharp® 18" Guide bar, (1) PowerSharp® Chain Loop with 62 drive links, (1) Bar-mount Sharpener and (1) Sharpening Stone. Fits Chain Saws with AO41 bar mount manufactured by Sears Craftsman, Cub Cadet, Dolmar, Efco, Homelite, Husqvarna, John Deere, Jonsered, Makita, McCulloch, Poulan/Poulan Pro, Redmax, Shindaiwa, Skil, Snapper, Tanaka, Toro. Fits Snapper model S1634, S1838.