Electric Motor electric motor .HCCB-23, air cooled voltage . 230 V current . 7,5 A frequency . 50 Hz / 60 Hz power . 2,3 kW rpm: 1. gear . 300 1/min. 2. gear . 640 1/min. 3. gear . 960 1/min. motor protection .thermal switch overload clutch core bit adapter . 1¼ “ also suitable: electric motor .HCCB-39, water cooled Optional extension plate . plus Ø 100 mm trolley chassis. fasten with screws tension block for . concrete and masonry adapter plate for . electric motor 1,5 kW water retention ring Ø 250 mm holding device for water retention ring with centering device for core . fasten with screws vacuum pump . type CV quick gripping brace 1,7 - 3,1 m adjustable feed . fine-pitch thread Drill Rig combined plug-vacuum plate aluminum adjustable feet .M12 precision guide . adjustable and exchangeable advance . gear rack inclinable backwards . 45° advance handwheel .adjustable levelling . bubble level quick changing plate for . electric motors grab handles . 2 pieces centering device . pivoted Drill Bits with water retention ring . Ø 250 mm without water retention ring .... Ø 300 mm with extension plate ...om. Ø 100 mm effective drilling depth .. 570 mm Dimensions Length . 520 mm Width . 300 mm Height . 1050 mm Weight . 19.8 kg