45 gr tungsten bush hammering roller. It guarantees a standard bush hammering and good performance. It is a medium carbon construction steel roller that allows greater resistance to wear, as well as great precision and low tolerance in the area where its bearings work. These bearings are double track and shielded, allowing excellent performance at high speeds. Due to low heat generation, the bearing temperature is lower, resulting in extended bearing life and maintenance intervals.

These rollers also have lip seals, allowing for a better seal against dust and water entering the rollers, thus improving tool life. The tips used on the rollers are high quality tungsten carbide tips, which allows them to have a high performance and, therefore, a great resistance to wear.