It is mainly composed of base, grinding wheel, motor or other power supply, bracket, shields and feed device, such as grinding wheel is set on top of the base, the base has a set of power for the space of inside, power transmission gear reducer, gear reducer has a wear a base on the surface of the top drive shaft for the fixed edge grinding wheel, base position corresponding to the bottom of the grinding wheel has a concave watershed, The water catchment area extends outwards to the first channel, and the water feeder is arranged above one side of the grinding wheel. There is a space for holding water in the water feeder, and there is a water outlet on one side of the grinding wheel corresponding to the water feeder. The overall transmission mechanism is very streamlined and perfect, so that the grinding process is more convenient and smooth and improve the overall grinding efficiency of the grinder
