Abstract: Alignment tool for positioning two close-fitting pieces of material together at an angle with respect to one another, that is equipped with a supporting section with which the alignment tool can rest on a first piece of material, and a table on which the second piece of material can be affixed at the aforementioned angle with respect to the first piece of material, whereby moreover the table is affixed movably on the supporting section to make one or more translation movements with respect to the supporting section, whereby the alignment tool is equipped with releasable securing elements.