supply of arrangement of battery operated rail core drillarrangement of battery operated rail core drill,arrangement of battery operated rail core drill for use in permanent way track works with drill bits 32 mm, 28 mm, 7.2 mm & 18 mm tct rail core drill, maximum core cutting capacity : 36 mm, rated speed: 2 50/450 rpm, battery type: li-on, battery voltage: 50 volt, battery pack capacity: 4 ah, number of battery suppli ed: 2 nos, number of charger supplied: 1 no, special design pressurized internal spindle cooling to give maxim um 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 s ection less than one minute. time taken to fix the machine on the rail, less than 2 minutes and to de-clamp less t han 1 minute. 34 number 32 mm diameter hole with full charge batteries (17 hole per battery) in 60 kg 90 uts ra il section. 3 sets of standard center rail drilling adapters for gauge 60, 52 kg provided along with machine along wi th template. weight of machine with battery: 18.5 kg, make: eibenstock. bosch, kptl. [ warranty period: 30 months after the date of delivery ] => limited