Tenders for Supply of Drill Twist 4Mm, Hss Grade M35 For Drilling On Various Stainless Steel And Ms Sheets, Parallel Shank Jobber Series Type N To Specn. Is 5101/2018 & Is 5099/2018 And Chemical Composition Of Xt90w6como5cr4v2 To Table 1 Of Is 7291-2019 Or Latest. Warranty Period: 30 Months After The Date Of Delivery