An apparatus for the positional adjustment of cutting tools for use on machine tools has a first block having a gauging surface mounted thereon and translationally and swivelly movable on a perpendicular shaft. A second block is coupled to the first block in such a manner that the two blocks move together translationally with the first block being free to swivel relative to the second block. The second block carries indicating means for indicating the amount of translational movement of the two blocks.
