supply of portable drill machine , light weight heavy duty electricportable drill machine having capacity 6 mm di a. inm.s sheet and compreg sheet, with input power 350-500 w, rated voltage - 110 v input (fu ll load),no loadspeed rpm in between 0-3400 rpm with variable speed,drill torque 3.5 nm, na ture of supply 110 v, 50 hz, totalweight 1.5 kgs. (minimum), body of the machineshould be ma de of high strength polymide (nylon-66) with 150 kilojules/sq. metre. with auto cut-offcarb on brush and spare one set carbon brush, oneset of chuck and key with each set of machine to is:4665/1984. make/brand: bosch or hitachi or fein ormilwakee or similar. [ warra nty period: 30 months after the date of delivery ] ]