97 52 > > > > > 97 52 63 DG > * 97 52 63 97 52 63 DG 0.01mm mm inch MIL 97 52 64 97 52 64 97 52 65 97 52 65 A 97 52 65 DG 0.01mm mm inch MIL 97 52 65 * 97 52 65 DG * 97 59 65 2 1/100 168