... Litchi surface 4.Best After-sale servic Name: Bush Hammer, Rotary Bush HammerBush Hammer:1. Drilling Diameter: 125MM, 150MM, 200MM, 250MM, 300MM, 350MM ... and 45PCS4. Mainly used for the stone finishing way of bush hammer finish;5. Works with high efficiency,5-6 times faster ... than that of manual processing;6. The grit of bush hammer face can be adjusted and the size ...