Abstract: A grinding machine having a base on which is mounted a work piece support and a grinding wheel assembly including a rotatable grinding wheel. The grinding wheel assembly is provided with adjustment mechanisms to enable the grinding wheel to be pivotally adjustable about both horizontal and vertical axes; arcuately movable in a direction which is parallel to or included within a plane containing the plane of rotation of the grinding wheel; and moved along an axis which is parallel to the rotational axis of the grinding wheel. The work piece support is also pivotally adjustable about a vertical axis and is adjustably movable along its vertical axis so that for example the teeth of a circular saw blade forming the work piece and mounted on said support can be ground by the machine.