I am the process engineer at a machine shop specializing in shaft work. We have some new parts that require one area to be shot peened.
The shaft are around 3.5" diameter and the spec called out is MIL-S-13165 110H intensity 10-14A.
I am looking for a used machine.

We have a steep learning curve ahead and any help to point us in the correct direction would be appreciated.
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Mike Tinkham