SET OF INSIDE AND OUTSIDE STANDARD LENGTH GAUGE AS PER DRAWING NO:- ELS/ SRC/ TM/ 24/ 2 REV ' 0 '. ONE SET CONSIST OF TOTAL 30 ITEMS:- ITEM A = 16 ITEMS OF DIFFERENT SIZES OF ' I ' SHAPED INSIDE STANDARD GAUGE AND ITEM B = 14 ITEMS OF DIFFERENT SIZES OF ' U ' SHAPED OUTSIDE STANDARD GAUGE AS PER MENTIONED IN DRAWING NO:- ELS/ SRC/ TM/ 24/ 2 REV ' 0 '. ( NOTE:- Valid calibration certificate of all item to be required from NABL/ Government Approved LAB and warranty certificate to be supplied with the material ).