Master Ring Gauge For Zero Setting Of Bore Gauge Of Nominal Dia 180 +- .02 Mm As Per Drg. No. G-0607. Note:- Firm Has To Submit Calibration Certificate From Any Nabl Approved Lab. [ Warranty Per Iod: 30 Months After The Date Of Delivery ] [Quantity Tolerance (+/-): 5 %Age , Item Category : Normal , Total Po Value Variation Permitted: Max 8 Lacs ] ]