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Diamond Core Drill
have the functions of constant power, soft start,stepless speed regulation 
TECHNICAL PARAMETER
Brick Drilling Range (mm) Concrete Drilling Range(mm) Rated Voltage(v) Rated Frequency(Hz) Rated Input Power(w) No-load Speed(rpm) Cable length(m) Borehole Depth(mm) Net/Gross Weight(Kgs) Packing Size(cm)
OND-913B ~4.5”(~110) ~3”(~80) 110/220~ 50-60 1980 100-2850 3.5 350 10/12 70*28*17
OND-916B ~6”(~160) ~4”(~100) 110/220~ 50-60 2300 100-1900 3.5 350 11/13 75*28*17