Solid Carbide General Purpose Jobber Drills As Per Specification No. Din 338 Size- Flute Dia: 4 .9Mm, Shank Dia: 4.9Mm, Flute Length: 57Mm, Overall Length: 98 Mm, Drill Dia Tolerance H7 (Special Condi Tions Coated: Tialin Titanium Nitrate Coated). Make: It Or Similar. [ Warranty Period: 30 Months After The Date Of Delivery ] ]