Product DescriptionThe Handle and Rail Set is used to set maximum width of cut on Alaskan MK-IV Mills.Part Number and name: G781-48Used for/with: Will fit any G778 or G777 equipped with a conversion kit.Fits: All chain saws with bars of 20-48ÓGeneral description: 48Ó aircraft aluminum and zinc plated tubingUse description:Ê Can be used to convert another size G778 to 48Ó or a G777 with a conversion kit to a G778-48.ÊP65WARNINGÊMADE IN THE USA