The Logosol Timberjig turns your chainsaw into a portable sawmill! Have you ever dreamed of being able to cut your own lumber, but not have the land or resources to do it? This little mill can have you cutting lumber quickly and simply. Like all Logosol products, this device features simplistic, rugged, and quality design. First advantage is that it attaches to the same two bolts that hold the chain bar to the saw. No need to drill holes for the mill in the bar! Second advantage is that in the box with the TimberJig, there are angle brackets and screws to build a straight wooden guide rail. This rail is only used for the first two cuts, to provide a flat surface. From then on, the TimberJig rests on the adjustable guide fence that sets the thickness of the board. For smaller logs, we recommend that you position the log in waist height to have a good operating position.