Digital Tread Thickness Gauge (J Gauge) For Bg Loco. Least Count: 0.01Mm, Accuracy Of Meas Urement: 0.02 Mm. With Calibration Certificate By Nabl Approved Labs. [ Warranty Period: 30 Months Aft Er The Date Of Delivery ] [Quantity Tolerance (+/-): 5 %Age , Item Category : Normal , Total Po Value Variation Permitted: Max 8 Lacs ] ]