Rotary Bush Hammer Plates Size:150/200/250mm Connection:4.2/4.5/4.7 High quality and competitive price Bush hammer plates ... hammer granules 150mm, with 4 bush hammer granules200mm,with 4 bush hammer granules250mm,with 5 bush hammer granules300mm, with 6 bush hammer granulesSmall/Big bush hammer ... .Mainly used for the stone finishing way of bush hammer finish;Works with high efficiency,5-6 times faster ...