Dongo Tool, Inc.
Our OD Grinding Capabilities range from very small parts, all the way up to parts that are 107" in length and diameters as large as 35". Typical tolerances are .001 but our equipment allows us to hold tolerances of .0001.
Our ID grinding capabilities are one of the best in the Midwest area. We can grind ID's from .05 diameter up to 30" diameter. We can reach in 18" on an ID taper grind and up to 25" on larger straight ID's.
The surface grinding area has an array of machines that can handle parts 12" wide by 24" long and up to 15" tall. Some larger pieces can also be run, however this depends on the material and specific tolerances of the job.