Hand Held Punches(Font Size 12 Mm) Of High Quality Heat Treated Tool Steel As Per Descripti On Of Is: 6864/1984.Hand Held Punches (A) Alphabets A To Z(Size-12 Mm) (B) Numbers 0 To 8(Size-12 Mm) Dimension:16X16X90Mm Hardness Of Letter End: 56-62 Hrc Hardness Of Striking End :38- 46 Hrc Make Of I Ems : Bradma, Bosch, Precision [ Warranty Period: 30 Months After The Date Of Delivery ] ]