Bit Size | 8 1/2"(215.9MM) |
Model | 617 |
Application |
Suitable for roller bits core barrels for pile foundation construcation |
Features | 1. Enhanced wear resistant gauge protection,increase the working life. 2. Hih temperature resistant rubber sealed bearing. 3. Shirt-tail protected by tungsten carbide 4. 14mm chisel insert,strong tungsten carbide body,higher wear resistance,dill fast. 5. Applicable rock hardness: ≥80Mpa |
Main structure features:
Optimal designs for various applicable formations, with different teeth shape,teeth height,and teeth placement,provide better drilling pefromance.
Individualized optimized design for bearing system guarantees and excellent performace of bearing capacity and a long working life.
Widely used in rotary drilling and HDD drilling markets,with high drilling efficiency.
