600mm length bush hammer roller for creating scratching finish on soft stones like marble. It is designed to be used on the calibration machine, for bush-hammering massive stone slabs. A total of 241 pieces of carbide heads guaranteed its high productivity. The width of the scratching line can be 2.5 or 5mm. What's more, the carbide heads of the newest bush hammer roller is upgraded. We enhanced the heads and increased its dust-proof ability, which lengthens its lifespan. Right now, we have already upgraded the components of carbide head, please check it as follows: BHR9BHR5