Alaskan Mill Granberg MKIII Handle & Rail Sets 24″ to 72″. Granberg MKIII Handle & Rail Sets 24″ to 72″ You can change the overall size of your mill by purchasing a longer or shorter handle and rail set. MKIII Handle & Rail Sets 24″ to 72″. You can change the overall size of your mill by purchasing a longer or shorter handle and rail set. Sorry, our items are NOT available for pick-up. No additional information at this time. You might also like. English Braids 14mm Rigging Line, 50m Blue. Treehog Rigging Rope 14mm x 50m. Treehog 5 Ton Lifting Slings.