Tenders for Supply of Hss Twist Drill Parallel Shankdia. 4.2Mm, Type-N To Is:5101-1991 Reaffirmed 2001 And Is:5099- 2003, And Material Xt110mo10co 8Cr4w2 To Is:7291-1981 Reaffirmed 2004. Make : M/S. Itmd/Mumbai Or M/S. Addison & Co Ltd/Chennai Or M/S.J.K.Files India Ltd/Mumbai Or M/S. Miranda Tools/ Mu Mbai.