Drill bits are used for drilling and the installation of anchor bars. They are provided as sacrificial drill bits (one time use only) and will be left in the borehole after the anchor bars are installed. Sinorock can provide a full range of drill bits according to customers' requirement. It's widely used in tunnel pre-support, soil nailing, slope stabilization, building foundation, etc.


Functions:
Self drilling anchor system is an advanced system which can ensure the anchoring effect for complex ground conditions. It can be integrated with the functions of drilling, grouting and anchoring.

Conditions:
Self drilling anchor bolt system is mainly used for slope stabilization, foundation with micropiles and tunneling, it's also widely used in the railway system, metro project, etc. It can be installed in sites with weak rocks, loose soil, weathered layer, sand with stone layer and so difficult to create a hole in complex formation. The unconsolidated ground condition favor the self drilling anchor bolt technique for fast and simple method of installed compared to the traditional method.

Features and advantages:
1. It features a hollow bore for flushing, or simultaneous drilling and grouting.
2. Reliable, Efficient and Convenient.
3. Choice of drill bits for different ground conditions.
4. It can be elongated by using couplers. 
5. Suitable for anchoring in broken geological condition and narrow space, which has achieved perfect effect.