The RR340 premium single sealed roller bearing bit is designed for challenging ground conditions. You’ll get great drilling performance also in wet and abrasive formations of medium or hard rock. The innovative single seal roller bearing technology and optional Sandvik PowerCarbide® inserts ensure reliable and efficient drilling with 45% longer service life compared to standard air bearing bits, as well as lower total drilling costs.
For more Information: https://www.rocktechnology.sandvik/en/campaigns/rr340-rotary-drill-bit/