I am looking for any information on a i.d grinder that can swing at least 75 degrees. I have a van norman no. 25 radius grinder that we use now, however it is getting wore out and cant take out of production to get it rebuilt. I would love to find another one.... good luck to me!!! cant even find info on the early 1900 machine. I have some parts that require a 15 degree angle off the face so 75 degree from the i.d anyone have any info of a machine out there capable of this?