Electromechanical Devices Manufacturing Services - Franklin, Indiana - GMI Corporation Electromechanical Devices, Manufacturing Services, Milling, Drilling, Boring, Turning, Threading, Tapping, Thread Milling, Internal Forming, Knurling, Broaching, Pocketing, Profiling, Franklin, Indiana, GMI Corporation GMI Corporation offer high quality precision machining & manufacturing services of electromechanical devices. We are ISO 9001 certified. Contact us today regarding our electromechanical devices services.