Jig grinder Wikipedia
A jig grinder is a machine tool used for grinding complex shapes and holes where the highest degrees of accuracy and finish are required. A Moore jig grinder. Wrenches, 123 blocks, and other tools are resting on the XY table. The jig grinder is very similar to a jig borer, in that the table positioning and spindles are very accurate (far more so than a manual milling machine or lathe). It