... .Grinding stone for Litchi surface 4.Competitive Price&High qualit Bush Hammer:1. Drilling Diameter: 125MM, 150MM, ... 300MM, 350MM, 400M, 450MM2. Roller quantity in per bush hammer: 3PCS, 4PCS, 5PCS, 6PCS, 9PCS and 12PCS3 ... 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 ...