| 摘要 |
The present invention relates to a hand grinder and, more specifically, to a hand grinder in which a coolant is automatically supplied during working, high heat caused by friction between a processing object and a tool is minimized during working such that as working time is extended, deformation of the processing object is prevented, cutting performance is exhibited, particularly, work performance and efficiency are significantly improved such as significant extension of the life of a tool. The hand grinder comprises: an adaptor (100); a connection pipe (200); and a coolant supply hose (300). |
