High Speed Steel High Cobalt Content Drill Bit 8.5Mm, As Per Drawing: Din 338, Other Details As Per Enclosed Annexure-Mp/Spec-01/12/Rev-01 Dated-22.06.2017. To Be Pur Chased From Oem Or The Authorised Dealers Of Oems [ Warranty Period: 30 Months After Th E Date Of Delivery ] ]