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          Home>oubao products>Diamond Core Drill
          Diamond Core Drill
          Velocity-adjustable drilling machines with soft start
          Stepless speed regulation and drilling inclined
          holes from 45-90° with the adjustable bracket
          TECHNICAL PARAMETER
          Concrete drilling range(mm) Rated Voltage(v) Rated Frequency(Hz) Rated Input Power(w) No-load Speed(rpm) Net/Gross Weight(kgs) Packing Weight(cm) Column length(cm)
          OB-255B(E) ~10”(~255)
          110/220~ 50-60 4250
          560(100-560) 23/25 94*36*24 900
          OB-255BCE ~10”(~255)
          110/220~ 50-60 4250 100-350/690 23/25 94*36*24 900
          OB-305B(E)
          ~12”(~305)
          110/220~
          50-60
          4550
          390(100-390)
          26/28
          103*39*24
          1000
          OB-305BCE
          ~12”(~305)
          110/220~
          50-60
          4550
          100-390/760
          26/28
          103*39*24
          1000
          OB-355B(E) ~14”(~355)
          110/220~
          50-60
          4780
          390(100-760)
          27/28
          103*39*24
          1000
          OB-355BCE ~14”(~355)
          110/220~
          50-60
          4780
          100-390/760
          27/28
          103*39*24
          1000
          OB-405B(E) ~16”(~405)
          110/220~
          50-60
          4980
          350(100-350)
          28/30
          103*39*24
          1000
          OB-405BCE ~16”(~405)
          110/220~
          50-60
          4980
          100-350/680
          28/30
          103*39*24
          1000
          OB-455B(E) ~18”(~455)
          110/220~
          50-60
          5180
          320(100-320)
          29/30
          103*39*24
          1000
          OB-455BCE ~18”(~455)
          110/220~
          50-60
          5180
          100-320/460
          29/30
          103*39*24
          1000
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