supply of battery operated rail drilling machine. , battery operated rail drilling machine along with 2 nos. of additional 17.5 mm tct rail core cutter, m aximum core cutting capacity : 38 mm, rated speed: 250/450 rpm, battery type: li-on, battery voltage: 50 volt, batt ery pack capacity: 11 ah, number of battery supplied: 2 nos, number of charger supplied: 1 no, machine transportat ion trolley-1no & supplied in metal box , special design pressurized internal spindle cooling to give maximum life of core cutter and to avoid heating of the rail. time taken to drill one hole of 32 mm in 60 kg 90 uts rail section less th an one minute. time taken to fix the machine on the rail, less than 2 minutes and to de-clamp less than 1 minute, as per rdso specification no.tm/sm/468 rev-02 dated 24.12.2020. 35 nos. of drillings with full charged battery with 28 mm dia or 32mm for 60 kg 90uts rail section. 2 sets of ohe rail drilling adapters for gauge 60kg & 52kg provided alo ng with machine. one additional clamp suitable for 40*6 mm & 50*6 mm ohe bonds. size for weight of machine with battery: 18.5 kg. [ warranty period: 12 months after the date of delivery ] ]