Concrete Core Drill Machine CONCRETE CORE DRILL MACHINES Core Drill Machines are used for concrete drilling. These drills are widely used in building construction, airports, runway construction, engineering projects, railways and bridge construction. CORE DRILL MACHINE - CD-205 Product ModelCD-205 Drilling Range15-205mm Rated Input Power3650W Rated Voltage220V Rated Frequency50-60Hz No-load Speed700 r/min Packing Dimensions335×240×900mm N.W./G.W.20/22.5kg Power Cord≈3.3m CORE DRILL MACHINE - CD-255 Product ModelCD-255 Drilling Range15-255mm Rated Input Power3950W Rated Voltage220V Rated Frequency50-60Hz No-load Speed580 r/min Packing Dimensions335×240×1000mm N.W./G.W.23/25.8kg Power Cord≈3.3m CORE DRILL MACHINE - CD-355E Product ModelCD-355E Drilling Range15-355mm Rated Input Power4680W Rated Voltage220V Rated Frequency50-60Hz No-load Speed0-600 r/min Packing Dimensions335×240×1000mm N.W./G.W.26/28kg Power Cord≈3.3m