The manufacturer of Rockbolt accessories tells you that since the hole intended to be inserted into the rock bolt is formed by the rock bolt itself as a drilling tool, the use of self-drilling rock bolts provides a reasonable processing process. After the drilling step, a bolt grouting medium such as cement is injected into the borehole for grouting the rock bolts for rock reinforcement purposes.

The Rockbolt accessories manufacturer tells you that during the drilling step, the drilling area is flushed with pressurized air or flushing fluid. Optionally, a thin flowing cement that is also used for grouting during the drilling step is used to flush the drilling area.
The Rockbolt accessories manufacturer tells you that this flushing can be continuous and results in better penetration of the cement into the rock surrounding the borehole and therefore better anchoring of the bolt.
Known devices for Rockbolt accessories include a rotating device that is screwed on the neck adapter of a drilling rig. The other end of the rotating device provides threads for receiving from the threaded end of the drilled rock bolt.
This known device is used to manually control Rockbolt accessories and needs to be monitored by an operator when the rock bolts drilled in from the rotating device are loosened.