Battery Operated Rail Drilling Machine As Per Rdso Specification No. Tm/Sm/468 Dated 31.03 .2014 First Revision 2017 With 02Set Of Drill Bit (1 With Machine + 1 Additional) Drill Bit Size 17.5 Mm, 26.5 Mm And 28.75Mm [ Warranty Period: 30 Months After The Date Of Delivery ] ]