Oregon 539457 PowerSharp Bar For 18-Inch Craftsman, Homelite, Poulan, And Poulan Pro Chain Saws (Discontinued by Manufacturer) PowerSharp replacement Bar for 18-inch bar on Craftsman, Homelite, Poulan, and Poulan Pro Saws Contains replacement PowerSharp bar and bar-mount sharpening system Must use PowerSharp PS62 chain with this bar For 3/8-inch pitch low profile chain and .050-inch gauge cutting systems From dull to sharp in as little as 3 seconds