g777Granberg's G777 Saw Mill allows users to mill lumber rht where the tree falls. Works with chainsaws with bars of 16 - 20 and 50cc - 70cc or more. Great for homeowners,Converts the G777 Small Log Mill in to a G778 Alaskan Mill. Fits: G777 Small Log Mill, most chain saws. General description: Aluminum and zinc plated steel.