Supply Of Gauge For Draft Width. Required Size: Nogo - 40.0 Mm Flat Type Ref. Drg. No. Rdso Sk 790 62 Alt-05 & 99007 Material - Tool Steel, Is 3748/90 Hardness - 50/55 Hrc. Supply With Calibration Certificat E - Valid For 01 Year Issued From Lab Approved From Accepted Make Nabl, P.i.e. Or Ganapathy Or Any Oth Er Equivalent Make.