supply of light weight battery operated rail drilling machine .as per attached technical specification.light weight battery operated rail drilling machine .as per attached technical specification.,light weight battery operated rail drilling machine suitable for 17.5mm rail drilling as per r dso specification no- tm/sm/468, dt-31.03.2014 and as per attached technical specification. sets consistin g of special design pressurize internal spindle for cooling with additional i) 05 nos tct core drill for 17.5 m m, ii) 03 nos pressure pin & spring, iii) 02 sets kit box. make lakshmi or equivalent.as per attached techni cal specification. [ warranty period: 30 months after the date of delivery ] ]