corrigendum : supply of electric motor rail drill machine , pro-36 r electric motor rail drill machine :arrangement of battery operated rail core drill al ong with additional 17 mm tct rail core drill, maximum core cutting capacity : 36 mm, rated speed: 250/ 450 rpm, battery type: li-on, battery voltage: 50 volt, battery pack capacity: 4 ah, number of battery supp lied: 2 nos, number of charger supplied: 1 no, special design pressurized internal spindle cooling to give m aximum life of core cutter and to avoid heating of the rail. time taken to drill one hole of 32 mm in 60 kg 9 0 uts rail section less than one minute. time taken to fix the machine on the rail, less than 2 minutes and t o de-clamp less than 1 minute. 34 number 32 mm diameter hole with full charge batteries (17 hole per bat tery) in 60 kg 90 uts rail section. 2 sets of ohe rail drilling adapters for gauge 60, 52 provided along with machine. weight of machine with battery: 18.5 kg. make: eibenstock/bosch/kptl. [ warranty period: 30 months after the date of delivery ] ]