Cobalt Drill Bit, M42, Size: 4.50 Mm Dia. Matl.& Specn : Is: 5101 - 1991 Or Latest / Din-33 8 . [ Warranty Period: 30 Months After The Date Of Delivery ] [Quantity Tolerance (+/-): 5 %Age , Item Category : Normal , Total Po Value Variation Permitted: Max 8 Lacs ] ]