Jig grinder

A jig grinder is a machine tool used for grinding complex shapes and holes where the highest degrees of accuracy and finish are required.

This offset can be adjusted while running and can typically outfeed about 0.100", again with an accuracy of 0.0001" on the handwheel or greater, for very precise hole, peg, and surface grinding.

A spacer bar may be used between the grinder and main spindle, allowing large (9" radius or larger) work to be completed.

The main spindle has a wide range of speeds to ensure proper grinder feed rates are maintained.

On October 19, 2022, the United States Department of Justice charged four individuals and two companies with violating U.S. export laws by attempting to smuggle a jig grinder, which is a dual use, export-controlled item, to Russia.