| 摘要 |
PROBLEM TO BE SOLVED: To provide a water injecting type grinder whereby flying up of dust can be surely and effectively suppressed, good lubrication between a wheel cutter and a coating surface or the like is satisfactorily maintained, troublesome work for maintenance of a dust collector mechanism is unnecessary, and cutting work can be efficiently advanced. SOLUTION: In a grinder main unit 1, an electric motor 4 and a wheel cutter 9 driven by this electric motor 4 to rotate are provided, in the periphery of the electric motor 4, a water jacket 22 is provided, and a flow water route communicating with inside the wheel cutter 9 from this water jacket 22 is provided. When the wheel cutter 9 is rotated, water is injected inside the wheel cutter 9 passing through the flow water route from the water jacket 22 through a feed water pump. |
