Granberg International manufactures saw chain maintenance tools to repair and sharpen saw chain and attachments. Granberg has been in business for nearly 40 years. In that time, it has introduced many innovative and useful tools to all the continents in the world, except Antarctica. The company's popular saw mill attachments are portable, and the environmental impact is minimized. The ALASKAN MARK III and MINI-MILL II portable chain saw mill attachments allow a user to efficiently saw trees on site and produce dimensional lumber suitable for building or woodworking projects.