Tenders for Supply of Set Of Alpha Numerical Punches For Wheel Disc Punching Of Electric Locomotive As Per The Following Set Details. 1 Letter Punch Hardness In Hrc 57, Length- 72Mm, Width-12Mm A To Z -01No. 2 Number Punc H Hardness In Hrc 57, Length- 72Mm, Width-12Mm 0 To 9-01No. Warranty Period: 12 Months After The Date Of Delivery