Granberg International manufactures saw chain maintenance tools to repair and sharpen saw chain and attachments for your chain saw to mill your own lumber. We have been in business for over fifty years and in that time we have introduced many innovative and useful tools to all the continents of the world (except maybe Antarctica). Currently our saw mill attachments are the most popular. They are very portable and environmental impact is minimized. The ALASKAN MARK III and the MINI-MILL II portable chain saw mill attachments allow the user to efficiently saw trees on site and produce dimensional lumber suitable for building or woodworking projects.