Supply Of Hss Taper Shank Drill Twist Size = 22 Mm As Per Is 5103 -1969 And Shall Last For 100 Bolt Holes In60 Kg 90 Uts Rails., Make - I.t. / J.k. File / Dormer., Material To Be Supplied Only After Submission And Approvalof Sample With All Necessary Cert (EXPIRED)